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Cisco Modular Access Router Cable Specifications
This document provides cable specifications for Cisco 1800 series, Cisco 2600 series, Cisco 2800 series, Cisco 3600 series, Cisco 3700 se

ries, and Cisco 3800 series routers. Use this document in conjunction with the following publications:


Cisco 1800 series hardware installation documentation Cisco 2600 Series Hardware Installation Guide Cisco 2800 series hardware installation documentation Cisco 3600 Series Hardware Installation Guide Cisco 3700 Series Hardware Installation Guide Cisco 3800 series hardware installation documentation Cisco Network Modules Hardware Installation Guide Cisco Interface Cards Hardware Installation Guide Safety Warnings, page 2 Console and Auxiliary Port Signals and Pinouts, page 7 Ethernet Cable Pinouts, page 10 Fast Ethernet Connector Pinouts, page 12 Token Ring Port Pinouts, page 12 ISDN BRI Interface, page 13 CT1/PRI Pinouts, page 15 CT1/PRI-CSU Pinouts, page 16 CE1/PRI Interface, page 17 56/64-kbps DSU/CSU Signals and Pinouts, page 18 T1/E1 Trunk and Digital Voice Port Pinouts (RJ-48), page 18 Analog Voice RJ-21 Pinouts, page 19

This document includes the following sections:


Corporate Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

Copyright 2004, 2005 Cisco Systems, Inc. All rights reserved.

Safety Warnings



Serial Connection Signals and Pinouts, page 20 Smart Serial Connection Signals and Pinouts, page 33 Octopus Cable Connection Signals and Pinouts, page 41

Note

All pins not listed in the tables in this document are not connected. If you prefer to order cables, see your router installation guide.

Safety Warnings
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement. To see translations of the warnings that appear in this publication, see the Regulatory Compliance and Safety Information document that accompanies your router.

Warning

IMPORTANT SAFETY INSTRUCTIONS This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071 SAVE THESE INSTRUCTIONS

Waarschuwing

BELANGRIJKE VEILIGHEIDSINSTRUCTIES Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van de standaard praktijken om ongelukken te voorkomen. Gebruik het nummer van de verklaring onderaan de waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt raadplegen. BEWAAR DEZE INSTRUCTIES

Varoitus

TRKEIT TURVALLISUUSOHJEITA Tm varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin ksittelet laitteistoa, huomioi shkpiirien ksittelemiseen liittyvt riskit ja tutustu onnettomuuksien yleisiin ehkisytapoihin. Turvallisuusvaroitusten knnkset lytyvt laitteen mukana toimitettujen knnettyjen turvallisuusvaroitusten joukosta varoitusten lopussa nkyvien lausuntonumeroiden avulla. SILYT NM OHJEET

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Safety Warnings

Attention

IMPORTANTES INFORMATIONS DE SCURIT Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant entraner des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers liés aux circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions des avertissements figurant dans les consignes de sécurité traduites qui accompagnent cet appareil, référez-vous au numéro de l'instruction situé à la fin de chaque avertissement. CONSERVEZ CES INFORMATIONS

Warnung

WICHTIGE SICHERHEITSHINWEISE Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen führen kann. Machen Sie sich vor der Arbeit mit Gerten mit den Gefahren elektrischer Schaltungen und den üblichen Verfahren zur Vorbeugung vor Unfllen vertraut. Suchen Sie mit der am Ende jeder Warnung angegebenen Anweisungsnummer nach der jeweiligen bersetzung in den übersetzten Sicherheitshinweisen, die zusammen mit diesem Gert ausgeliefert wurden. BEWAHREN SIE DIESE HINWEISE GUT AUF.

Avvertenza

IMPORTANTI ISTRUZIONI SULLA SICUREZZA Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti. Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le traduzioni delle avvertenze riportate in questo documento. CONSERVARE QUESTE ISTRUZIONI

Advarsel

VIKTIGE SIKKERHETSINSTRUKSJONER Dette advarselssymbolet betyr fare. Du er i en situasjon som kan fre til skade p person. Fr du begynner arbeide med noe av utstyret, m du vre oppmerksom p farene forbundet med elektriske kretser, og kjenne til standardprosedyrer for forhindre ulykker. Bruk nummeret i slutten av hver advarsel for finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne enheten. TA VARE P DISSE INSTRUKSJONENE

Aviso

INSTRUES IMPORTANTES DE SEGURANA Este símbolo de aviso significa perigo. Você está em uma situao que poderá ser causadora de leses corporais. Antes de iniciar a utilizao de qualquer equipamento, tenha conhecimento dos perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de preveno de acidentes. Utilize o número da instruo fornecido ao final de cada aviso para localizar sua traduo nos avisos de segurana traduzidos que acompanham este dispositivo. GUARDE ESTAS INSTRUES

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Safety Warnings

Advertencia!

INSTRUCCIONES IMPORTANTES DE SEGURIDAD Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los procedimientos estándar de prevención de accidentes. Al final de cada advertencia encontrará el número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaa a este dispositivo. GUARDE ESTAS INSTRUCCIONES

Varning!

VIKTIGA SKERHETSANVISNINGAR Denna varningssignal signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utfr arbete p ngon utrustning mste du vara medveten om farorna med elkretsar och knna till vanliga frfaranden fr att frebygga olyckor. Anvnd det nummer som finns i slutet av varje varning fr att hitta dess versttning i de versatta skerhetsvarningar som medfljer denna anordning. SPARA DESSA ANVISNINGAR

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Safety Warnings

Aviso

INSTRUES IMPORTANTES DE SEGURANA Este símbolo de aviso significa perigo. Você se encontra em uma situao em que há risco de leses corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os circuitos elétricos e familiarize-se com as práticas padro de preveno de acidentes. Use o número da declarao fornecido ao final de cada aviso para localizar sua traduo nos avisos de segurana traduzidos que acompanham o dispositivo. GUARDE ESTAS INSTRUES

Advarsel

VIGTIGE SIKKERHEDSANVISNINGER Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for legemesbeskadigelse. Fr du begynder arbejde p udstyr, skal du vre opmrksom p de involverede risici, der er ved elektriske kredslb, og du skal stte dig ind i standardprocedurer til undgelse af ulykker. Brug erklringsnummeret efter hver advarsel for at finde oversttelsen i de oversatte advarsler, der fulgte med denne enhed. GEM DISSE ANVISNINGER

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Safety Warnings

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Console and Auxiliary Port Signals and Pinouts

Console and Auxiliary Port Signals and Pinouts
Your router comes with a kit that contains the cable and adapters you need to connect a console terminal (an ASCII terminal or PC running terminal emulation software) or modem to your router. Cisco 1800 series routers, and the Cisco 2801 router, come with an accessory kit that includes the following items:


RJ-45-to-DB-9 cable DB-9-to-DB-25 modem adapter RJ-45-to-DB-9 console cable RJ-45-to-DB-25 modem cable

All other routers in the Cisco 2800 series come with an accessory kit that contains the following:


For console and modem connections on Cisco 1800 and Cisco 2800 series routers, see the Cable Connection Procedures document within the Cisco 1800 series hardware installation documentation or within the Cisco 2800 series hardware installation documentation. Cisco 2600, Cisco 3600, Cisco 3700 and Cisco 3800 series routers come with a console and auxiliary cable kit that includes the following items:


RJ-45-to-RJ-45 rollover cable RJ-45-to-DB-9 female DTE adapter (labeled TERMINAL) RJ-45-to-DB-25 female DTE adapter (labeled TERMINAL) RJ-45-to-DB-25 male DCE adapter (labeled MODEM)

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Console and Auxiliary Port Signals and Pinouts

For console connections on Cisco 2600, Cisco 3600, Cisco 3700, or Cisco 3800 series routers, proceed to the “Console Port Signals and Pinouts” section on page 8; for modem connections, proceed to the “Auxiliary Port Signals and Pinouts” section on page 9.

Console Port Signals and Pinouts
Use the thin, flat, RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-9 female DTE adapter (labeled TERMINAL) to connect the console port to a PC running terminal emulation software. Figure 1 shows how to connect the console port to a PC. Table 1 lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-9 female DTE adapter (labeled TERMINAL).
Figure 1 Connecting the Console Port to a PC
RJ-45-to-RJ-45 rollover cable Router RJ-45-to-DB-9 adapter (labeled TERMINAL)
H7226

PC

Table 1

Console Port Signaling and Cabling Using a DB-9 Adapter

Console Port (DTE) Signal RTS DTR TxD GND GND RxD DSR CTS

RJ-45-to-RJ -45 Rollover Cable RJ-45 Pin 1 2 3 4 5 6 7 8
1 1

RJ-45-to-DB-9 Terminal Adapter (connected to Console Rollover Cable) Device RJ-45 Pin 8 7 6 5 4 3 2 1 DB-9 Pin 8 6 2 5 5 3 4 7 Signal CTS DSR RxD GND GND TxD DTR RTS

1. Pin 1 is connected internally to pin 8.

Table 2 lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 female DTE adapter (labeled TERMINAL).

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Console and Auxiliary Port Signals and Pinouts

Table 2

Console Port Signaling and Cabling Using a DB-25 Adapter

Console Port (DTE)1 Signal RTS DTR TxD GND GND RxD DSR CTS

RJ-45-to-RJ-45 Rollover Cable RJ-45 Pin 1 2 3 4 5 6 7 8
2 2

RJ-45-to-DB-25 Terminal Adapter DB-25 Pin 5 6 3 7 7 2 20 4

Console Device Signal CTS DSR RxD GND GND TxD DTR RTS

RJ-45 Pin 8 7 6 5 4 3 2 1

1. You can use the same cabling to connect a console to the auxiliary port. 2. Pin 1 is connected internally to pin 8.

Auxiliary Port Signals and Pinouts
Table 3 lists the pinouts for the asynchronous serial auxiliary port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 male DCE adapter (labeled MODEM).
Table 3 Auxiliary Port Signaling and Cabling Using a DB-25 Adapter

Auxiliary Port (DTE) Signal RTS DTR TxD GND GND RxD DSR CTS

RJ-45-to-RJ-45 Roll-Over Cable RJ-45 Pin 1 2 3 4 5 6 7 8
1 1

RJ-45-to-DB-25 Modem Adapter DB-25 Pin 4 20 2 7 7 3 8 5

Modem Signal RTS DTR TxD GND GND RxD DCD CTS

RJ-45 Pin 8 7 6 5 4 3 2 1

1. Pin 1 is connected internally to pin 8.

You can identify a rollover cable by comparing the modular plugs at the two ends of the cable. When you hold the plugs side by side, with the tab at the back, the wire connected to the pin on the outside of the left plug should be the same color as the wire connected to the pin on the outside of the right plug. (See Figure 2.) If you purchased your cable from Cisco Systems, pin 1 is white on one connector, and pin 8 is white on the other (a rollover cable connects pins 1 and 8, 2 and 7, 3 and 6, and 4 and 5).

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Ethernet Cable Pinouts

Figure 2

Identifying a Rollover Cable
Pin 1 and pin 8 should be the same color Pin 1 Pin 8

Ethernet Cable Pinouts
This section describes the following:


Ethernet AUI Cable Pinouts 10BASE-T Connector Pinouts

Ethernet AUI Cable Pinouts
Figure 3 shows the Ethernet (AUI) cable assembly, and Table 4 lists the pinouts.
Figure 3
J1-1 J1-9

Ethernet (AUI) Cable Assembly
J2-1 J2-9

J1-15 J1-8

H1031a

J1

J2

Table 4

Ethernet (AUI) Pinouts

Pin 3 10 11 5

Ethernet Circuit DO-A DO-B DO-S DI-A

Signal Name Data Out Circuit A Data Out Circuit B Data Out Circuit Shield Data In Circuit A

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H3824

J2-15 J2-8

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Ethernet Cable Pinouts

Table 4

Ethernet (AUI) Pinouts (continued)

Pin 12 4 7 15 8 2 9 1 6 13 14

Ethernet Circuit DI-B DI-S CO-A CO-B CO-S CI-A CI-B CI-S VC VP VS

Signal Name Data In Circuit B Data In Circuit Shield Control Out Circuit A (not connected) Control Out Circuit B (not connected) Control Out Circuit Shield (not connected) Control In Circuit A Control In Circuit B Control In Circuit Shield Voltage Common Voltage Plus Voltage Shield (L25 and M25) Protective Ground

Shell PG

10BASE-T Connector Pinouts
Figure 4 shows the 10BASE-T connector (RJ-45), and Table 5 lists its pinouts.
Figure 4 10BASE-T Connector (RJ-45)

Table 5

10BASE-T Connector (RJ-45) Pinouts

Pin1 1 2 3 4 5 6 7 8

Description TX+ TX– RX+ — — RX– — —

1. Any pin not described is not connected.

H7316

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Fast Ethernet Connector Pinouts

Fast Ethernet Connector Pinouts
This section illustrates the Fast Ethernet 100BASE-TX (RJ-45) connector and lists its pinouts and signal descriptions. Figure 5 shows the 100BASE-TX RJ-45 connector, and Table 6 lists its pinouts. The 1-port Fast Ethernet network module RJ-45 port actively terminates wire pair 4 and 5 and wire pair 7 and 8. Common-mode termination reduces electromagnetic interference (EMI) and susceptibility to common-mode sources.
Figure 5 100BaseTX RJ-45 Connector
RJ-45 (both ends)

Pin 8

Table 6

RJ-45 Connector Pinout

Pin 1 2 3 6

Signal TX+ TX– RX+ RX–

Token Ring Port Pinouts
The 1E1R 2-slot module provides both UTP and STP Token Ring connections described in these sections:


Token Ring STP Connector Pinouts Token Ring UTP Connector Pinouts

The IEEE has established Token Ring as standard IEEE 802.5. The distance limitations for the IEEE 802.5 specification indicate a maximum segment distance of 328 feet (100 meters) for UTP cabling. The distance limitation is 1,640 feet (500 meters) for STP cabling.

Note

To ensure agency compliance with FCC Class B electromagnetic emissions requirements (EMI), make sure that you use the shielded RJ-45 Token Ring cable when connecting your router to the Token Ring network. Token Ring can operate at two different ring speeds: 4 and 16 Mbps. All devices on the ring must use the same operating speed. Only one Token Ring port can be used at a time. The module will automatically detect which port, STP or UTP, is in use. Use the provided Token Ring cable to connect the router to a switch.

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H1567

Pin 1

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ISDN BRI Interface

Token Ring STP Connector Pinouts
Table 7 shows the Token Ring STP port pinouts used by the 1E1R 2-slot module.
Table 7 Token Ring STP Port (DB-9) Pinouts

9-Pin Signal Name 1 2 3 4 5 6 7 8 9 RX– Ground +5 Volt, fused Ground TX– +RX Ground Ground +TX

Token Ring UTP Connector Pinouts
Table 8 shows the Token Ring UTP port pinouts used by the 1E1R 2-slot module.
Table 8 Token Ring UTP Port (DB-9) Pinouts

RJ-45 Pins 1 2 3 4 5 6 7 8

Signal GND GND TX RX TX RX GND —

ISDN BRI Interface
This section contains the following topics:


ISDN BRI Connections ISDN BRI Pinouts

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ISDN BRI Interface

Warning

Network hazardous voltages are present in the BRI, fractional T1/T1, and switched 56 cables. If you detach the cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are present on the system card in the area of the BRI port (RJ-45 connector), fractional T1/T1 port (RJ-48C connector), and switched port (RJ-11 or RJ-48S connector), regardless of when power is turned OFF. Statement 59

ISDN BRI Connections
Warning

The ISDN connection is regarded as a source of voltage that should be inaccessible to user contact. Do not attempt to tamper with or open any public telephone operator (PTO)-provided equipment or connection hardware. Any hardwired connection (other than by a nonremovable, connect-one-time-only plug) must be made only by PTO staff or suitably trained engineers. Statement 23

Use a BRI cable (not included) to connect BRI ports on WAN interface cards (WICs) or on high speed WICs (HWICs) directly to an ISDN. Table 9 lists the specifications for ISDN BRI cables.
Table 9 ISDN BRI Cable Specications

Specification Resistance (at 96 kHz) Capacitance (at 1 kHz) Impedance (at 96 kHz) Wire diameter Distance limitation
1. nF = nanoFarad

High-Capacitance Cable 160 ohms/km 120 nF /km 75 ohms 0.024 in (0.6 mm) 32.8 ft (10 m)
1

Low-Capacitance Cable 160 ohms/km 30 nF/km 150 ohms 0.024 in (0.6 mm) 32.8 ft (10 m)

ISDN BRI Pinouts
Table 10 lists the connector signals and pinouts for an ISDN BRI S/T port. Table 11 lists the connector signals and pinouts for the ISDN BRI U port.

Caution

To prevent damage to the system, make certain you connect the BRI cable to the BRI connector only and not to any other RJ-45 connector.

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CT1/PRI Pinouts

Table 10

ISDN BRI S/T Port Signals and Pinouts (RJ-45)

8-Pin1 3 4 5 6

TE2 TX RX RX TX

NT3 RX TX TX RX

Polarity + + — —

1. Pins 1, 2, 7, and 8 are not used. 2. TE refers to terminal terminating layer 1 aspects of TE1, TA, and NT functional groups (this applies to the ISDN BRI S/T WIC). 3. NT refers to network terminating layer 1 aspects of NT1 and NT2 functional groups.

Table 11

ISDN BRI U Port Signals and Pinouts (RJ-45)

8-Pin1 3 4 5 6

Function No connection Signal—Tip or Ring Signal—Tip or Ring No connection

1. Pins 1, 2, 7, and 8 are not used.

CT1/PRI Pinouts
Two standard T1 serial cables are available for the CT1/PRI module: null modem and straight-through. A straight-through cable connects the router to an external CSU. Null modem cables are used for back-to-back operation and testing. The T1 interface cable has two 15-pin DB connectors at each end to connect the CT1/PRI module with the external T1 CSU. Figure 6 shows the T1 interface cable, connectors, and pinouts. Table 12 lists the pinouts for the null modem T1 cable, and Table 13 lists the pinouts for the straight-through T1 cable.

Warning

Network hazardous voltages are present in the BRI, fractional T1/T1, and switched 56 cables. If you detach the cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are present on the system card in the area of the BRI port (RJ-45 connector), fractional T1/T1 port (RJ-48C connector), and switched port (RJ-11 or RJ-48S connector), regardless of when power is turned OFF. Statement 59

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CT1/PRI-CSU Pinouts

Figure 6
Pin 1 Pin 9

T1 Interface Cable
Pin 3 Pin 11

72-XXXX-01 MIP

Pin 11 Pin 3 T1 or null modem connector (typical)

Pin 9 Pin 1
H2385

Table 12

Null Modem T1 Cable Pinouts

15-Pin DB Connector Signal Transmit Tip Receive Tip Transmit Ring Receive Ring Pin 1 3 9 11 Pin 3 1 11 9

15-Pin DB Connector Signal Receive Tip Transmit Tip Receive Ring Transmit Ring

Table 13

Straight-Through T1 Cable Pinouts

15-Pin DB Connector Signal Transmit Tip Transmit Ring Receive Tip Receive Ring Pin 1 9 3 11 Pin 1 9 3 11

15-Pin DB Connector Signal Transmit Tip Transmit Ring Receive Tip Receive Ring

CT1/PRI-CSU Pinouts
Table 14 lists the CT1/PRI-CSU module port pinouts. Use a straight-through RJ-48C-to-RJ-48C cable to connect the T1 port to an RJ-48C jack.
Table 14 CT1/PRI-CSU Module Port (RJ-48C) Pinouts

RJ-48C Pin 1 2 4 5

Description Receive Ring Receive Tip Ring Tip

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CE1/PRI Interface

CE1/PRI Interface
This section contains the following topics:


CE1/PRI Cables CE1/PRI Pinouts

CE1/PRI Cables
Cisco Systems makes four cables for the CE1/PRI modules. All four have DB-15 connectors on the CE1/PRI end and either BNC, DB-15, twinaxial, or RJ-45 connectors on the network end. Figure 7 through Figure 10 show the CE1/PRI interface cables.
Figure 7 E1 Interface Cable for 75-Ohm, Unbalanced Connections with BNC Connectors

Figure 8

E1 Interface Cable for 120-Ohm, Balanced Connections with DB-15 Connectors

Figure 9

E1 Interface Cable for 120-Ohm, Balanced Connections with Twinaxial Connectors

Figure 10

E1 Interface Cable for 120-Ohm, Balanced Connections with an RJ-45 Connector

H2424

CE1/PRI Pinouts
Table 15 lists pinouts for the CE1/PRI interface cables.

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H2422

H2476

H2421

17

56/64-kbps DSU/CSU Signals and Pinouts

Table 15

E1 Interface Cable Pinouts

CE1/PRI End DB-15 Pin 9 2 10 8 15 7 Signal TX Tip TX Ring TX Shield RX Tip RX Ring RX Shield

Network End BNC Signal TX Tip TX Shield — RX Tip RX Shield — DB-15 Pin 1 9 2 3 11 4 Signal TX Tip TX Ring TX Shield RX Tip RX Ring RX Shield Twinax Pin TX-1 TX-2 RX-1 RX-2 Signal TX Tip TX Ring RX Tip RX Ring RJ-45 Pin 1 2 3 4 5 6 Signal TX Tip TX Ring TX Shield RX Tip RX Ring RX Shield

Shield TX Shield

Shield RX Shield

56/64-kbps DSU/CSU Signals and Pinouts
Switched 56-kbps connections are provided by the 56-kbps DSU/CSU WAN interface card (WIC). For more information, see the Network Modules Hardware Installation Guide.

Warning

Network hazardous voltages are present in the BRI, fractional T1/T1, and switched 56 cables. If you detach the cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are present on the system card in the area of the BRI port (RJ-45 connector), fractional T1/T1 port (RJ-48C connector), and switched port (RJ-11 or RJ-48S connector), regardless of when power is turned OFF. Statement 59

Table 16 lists the 56/64-kbps DSU/CSU connector signals and pinouts.
Table 16 56/64-Kbps DSU/CSU (RJ-48S) Signals and Pinouts

8-Pin1 1 2 7 8

Description Transmit Ring Transmit Tip Receive Tip Receive Ring

1. Pins 3, 4, 5, and 6 are not used.

T1/E1 Trunk and Digital Voice Port Pinouts (RJ-48)
Figure 11 shows the RJ-48 connector wiring for the T1/E1 trunk cable and the digital voice port cable; Table 17 lists the pinouts.

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Analog Voice RJ-21 Pinouts

Figure 11
1

RJ-48-to-RJ-48 T1/E1 Cable Wiring
8

Table 17

Pinouts for T1/E1 Trunk and Digital Voice Port (RJ-48)

Pin1 1 2 3 4 5 6 7 8

H11419

Signal RX + (input) RX - (input) — TX + (output) TX - (output) — — —

1. Any pin not referenced on a connector is not connected.

Analog Voice RJ-21 Pinouts
Figure 12 shows the RJ-21 connector wiring for the 50-pin Amphenol cable; Table 18 lists the pinouts.
Figure 12 RJ-21 Connector Wiring
1 25

26

50

RJ-21 cable

RJ-21 connector

36484

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Serial Connection Signals and Pinouts

Table 18

Pinouts for FXS and FXO Voice Ports

Pair 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Ring Conductor 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Tip Conductor 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

Serial Connection Signals and Pinouts
This section provides information about the 1-port serial WAN interface card (WIC). With the appropriate serial transition cable, this WIC can provide an EIA/TIA-232, EIA/TIA-449, V.35, X.21, DTE/DCE, EIA-530 DTE, or NRZ/NRZI serial interface.

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Serial Connection Signals and Pinouts

Types of Serial Cables
Five types of serial cables (also called serial adapter cables or serial transition cables) are available from Cisco Systems:


EIA/TIA-232 Interface EIA/TIA-449 Interface V.35 Interface X.21 Serial Cable Assembly EIA-530 Interface

All serial cables provide a universal plug at the WIC end. The network end of each cable provides the physical connectors most commonly used for the interface. For example, the network end of the EIA/TIA-232 serial cable is a DB-25 connector, the most widely used EIA/TIA-232 connector. All serial interface types except EIA-530 are available in DTE or DCE format: DTE with a plug connector (male) at the network end and DCE with a receptacle (female) at the network end. V.35 is available in either mode with either gender at the network end. EIA-530 is available in DTE only.

Connecting the WIC to the Network
Note

The serial WIC uses a universal high-density, 60-pin receptacle. Each universal port requires a serial port adapter cable that determines the port’s electrical interface type and mode: DTE or DCE. Although all port adapter cables use a universal plug at the serial module end, the network end of each cable type uses the physical connectors commonly used for the interface. (For example, the network end of the EIA/TIA-232 port adapter cable is a DB-25 connector, the most widely used EIA/TIA-232 connector.) After you install the serial WIC, use the appropriate serial cable to connect the WIC DB-60 serial port to one of the following types of equipment:


An asynchronous modem, if connecting to an analog telephone line A synchronous modem, data service unit/channel service unit (DSU/CSU), or other data circuit-terminating equipment (DCE), if connecting to a digital WAN line

EIA/TIA-232 Interface
This section contains the following topics:


EIA/TIA-232 Connections EIA/TIA-232 Serial Cable Assembly

EIA/TIA-232 Connections
EIA/TIA-232 supports unbalanced circuits at signal speeds up to 64 kbps. The network end of the adapter cable is a standard 25-pin D-shell connector known as a DB-25. (See Figure 13.) The router console and auxiliary ports also use EIA/TIA-232 connections; however, the serial module ports support synchronous connections, and the console and auxiliary ports support asynchronous connections.

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Serial Connection Signals and Pinouts

Figure 13

EIA/TIA-232 Adapter Cable Connectors, Network End

DTE

DCE

EIA/TIA-232 Serial Cable Assembly
Figure 14 shows the EIA/TIA-232 serial cable assembly. Table 19 lists the DTE pinout and Table 20 lists the DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.
Figure 14
J1-46 J1-45 J1-16 J1-15

EIA/TIA-232 Cable Assembly
60-pin connector (J1) 25-pin connector (J2) J2-13 J2-25

H1343a

H1972

J1-1 J1-30 J1-31 J1-60

J2-14 J2-1 Connectors are not to scale.

Table 19

EIA/TIA-232 DTE Cable Pinout (DB-60 to DB-25)

60-Pin J1-50 J1-51 J1-52 J1-46 J1-46 J1-41 Shield J1-36 Shield J1-42 Shield J1-35 Shield J1-34 Shield

Signal

Note

Direction 25-Pin — —

Signal —

MODE_0 Shorting group GND MODE_DCE Shield GND Shield GND TXD/RXD — RXD/TXD — RTS/CTS — CTS/RTS — DSR/DTR — Single Single Twisted pair no. 5 Twisted pair no. 9 Twisted pair no. 4

— — —> — <— — —> —

J2-1 J2-1 J2-2 Shield J2-3 Shield J2-4 Shield J2-5 Shield J2-6 Shield

Shield GND Shield GND TXD — RXD — RTS — CTS — DSR —

Twisted pair no. 10 <— — Twisted pair no. 11 <— —

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Table 19

EIA/TIA-232 DTE Cable Pinout (DB-60 to DB-25) (continued)

60-Pin J1-45 Shield J1-33 Shield J1-37 Shield J1-38 Shield J1-44 Shield J1-43 Shield J1-39 Shield

Signal Circuit GND — DCD/LL — TXC/NIL — RXC/TXCE — LL/DCD — DTR/DSR — TXCE/TXC —

Note Twisted pair no. 1

Direction 25-Pin — — J2-7 Shield J2-8 Shield J2-15 Shield J2-17 Shield J2-18 Shield J2-20 Shield J2-24 Shield

Signal Circuit GND — DCD — TXC — RXC — LTST — DTR — TXCE —

Twisted pair no. 12 <— — Twisted pair no. 8 Twisted pair no. 7 Twisted pair no. 2 Twisted pair no. 3 Twisted pair no. 6 <— — <— — —> — —> — —> —

Table 20

EIA/TIA-232 DCE Cable Pinout (DB-60 to DB-25)

60-Pin J1-50 J1-51 J1-36 Shield J1-41 Shield J1-35 Shield J1-42 Shield J1-43 Shield J1-45 Shield J1-44 Shield J1-39 Shield J1-40 Shield J1-33 Shield

Signal MODE_0 GND RXD/TXD — TXD/RXD — CTS/RTS — RTS/CTS — DTR/DSR — Circuit GND — LL/DCD — TXCE/TXC — NIL/RXC — DCD/LL —

Note Shorting group Twisted pair no. 9 Twisted pair no. 5

Direction 25-Pin — <— — —> — — J2-2 Shield J2-3 Shield J2-4 Shield J2-5 Shield J2-6 Shield J2-7 Shield J2-8 Shield J2-15 Shield J2-17 Shield J2-18 Shield

Signal — TXD — RXD — RTS — CTS — DSR — Circuit GND DCD — TXC — RXC — LTST —

Twisted pair no. 10 <— — Twisted pair no. 4 Twisted pair no. 3 Twisted pair no. 1 Twisted pair no. 2 Twisted pair no. 7 Twisted pair no. 6 —> — —> — — — —> — —> — —> —

Twisted pair no. 12 <— —

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Serial Connection Signals and Pinouts

Table 20

EIA/TIA-232 DCE Cable Pinout (DB-60 to DB-25) (continued)

60-Pin J1-34 Shield J1-38 Shield

Signal DSR/DTR — RXC/TXCE —

Note

Direction 25-Pin J2-20 Shield J2-24 Shield

Signal DTR — TXCE —

Twisted pair no. 11 <— — Twisted pair no. 8 <— —

EIA/TIA-449 Interface
This section contains the following topics:


EIA/TIA-449 Connections EIA/TIA-449 Serial Cable Assembly

EIA/TIA-449 Connections
EIA/TIA-449, which supports balanced (EIA/TIA-422) and unbalanced (EIA/TIA-423) transmissions, is a faster (up to 2 Mbps) version of EIA/TIA-232 that provides more functions and supports transmissions over greater distances. The EIA/TIA-449 standard was intended to replace the EIA/TIA-232 standard, but it was not widely adopted primarily because of the large installed base of DB-25 hardware and because of the larger size of the 37-pin EIA/TIA-449 connectors, which limited the number of connections possible (fewer than possible with the smaller, 25-pin EIA/TIA-232 connector). The network end of the EIA/TIA-449 adapter cable provides a standard 37-pin D-shell connector. (See Figure 15.) EIA/TIA-449 cables are available as either DTE (DB-37 plug) or DCE (DB-37 receptacle).
Figure 15 EIA/TIA-449 Adapter Cable Connectors, Network End

DTE

DCE

EIA/TIA-449 Serial Cable Assembly
Figure 16 shows the EIA/TIA-449 serial cable assembly. Table 21 lists the DTE pinout, and Table 22 lists the DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

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H1344a

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Figure 16
J1-46 J1-45 J1-16 J1-15

EIA/TIA-449 Serial Cable Assembly
60-pin connector (J1) 37-pin connector (J2) J2-19 J2-37

J1-1 J1-30 J1-31 J1-60

H1973

Connectors are not to scale.

J2-20 J2-1

Table 21

EIA/TIA-449 DTE Cable Pinout (DB-60 to DB-37)

60-Pin J1-49 J1-48 J1-51 J1-52 J1-46 J1-11 J1-12 J1-24 J1-23 J1-28 J1-27 J1-9 J1-10 J1-26 J1-25 J1-1 J1-2 J1-44 J1-45 J1-3 J1-4 J1-7 J1-8 J1-5 J1-6 J1-13 J1-14 J1-15 J1-16

Signal Name MODE_1 GND

Note Shorting group

Direction 37-Pin — — _ —> —> <— <— — — J2-1 J2-4 J2-22 J2-5 J2-23 J2-6 J2-24 J2-7 J2-25 J2-8 J2-26 J2-9 J2-27 J2-10 J2-37 J2-11 J2-29 J2-12 J2-30 J2-13 J2-31 J2-17 J2-35 J2-19 J2-20

Signal Name — — Shield GND SD+ SD– ST+ ST– RD+ RD– RS+ RS– RT+ RT– CS+ CS– LL SC DM+ DM– TR+ TR– RR+ RR– TT+ TT– SG RC

GND Shorting group MODE_DCE Shield_GND Single TXD/RXD+ TXD/RXD– TXC/RXC+ TXC/RXC– RXD/TXD+ RXD/TXD– RTS/CTS+ RTS/CTS– Twisted pair no. 6 Twisted pair no. 9

Twisted pair no. 11 <— <— Twisted pair no. 5 —> —>

RXC/TXCE+ Twisted pair no. 10 <— RXC/TXCE– <— CTS/RTS+ CTS/RTS– Twisted pair no. 1 <— <—

LL/DCD Twisted pair no. 12 —> Circuit_GND — DSR/DTR+ DSR/DTR– DTR/DSR+ DTR/DSR– DCD/DCD+ DCD/DCD– Twisted pair no. 2 Twisted pair no. 4 Twisted pair no. 3 <— <— —> —> <— <— —> —> — —

TXCE/TXC+ Twisted pair no. 7 TXCE/TXC– Circuit_GND Twisted pair no. 9 Circuit_GND

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Table 22

EIA/TIA-449 DCE Cable Pinout (DB-60 to DB-37)

60-Pin J1-49 J1-48 J1-46 J1-28 J1-27 J1-13 J1-14 J1-11 J1-12 J1-1 J1-2 J1-24 J1-23 J1-9 J1-10 J1-29 J1-30 J1-7 J1-8 J1-3 J1-4 J1-5 J1-6 J1-26 J1-25 J1-15 J1-16

Signal Name MODE_1 GND RXD/TXD+ RXD/TXD–

Note Shorting group

Direction 37-Pin — — — J2-1 J2-4 J2-22 J2-5 J2-23 J2-6 J2-24 J2-7 J2-25 J2-8 J2-26 J2-9 J2-27 J2-10 J2-37 J2-11 J2-29 J2-12 J2-30 J2-13 J2-31 J2-17 J2-35 J2-19 J2-20

Signal Name — Shield GND SD+ SD– ST+ ST– RD+ RD– RS+ RS– RT+ RT– CS+ CS– LL SC DM+ DM– TR+ TR– RR+ RR– TT+ TT– SG RC

Shield_GND Single

Twisted pair no. 11 <— <— —> —> —> —> <— <— —> —> —> —>

TXCE/TXC+ Twisted pair no. 7 TXCE/TXC– TXD/RXD+ TXD/RXD– CTS/RTS+ CTS/RTS– TXC/RXC+ TXC/RXC– RTS/CTS+ RTS/CTS– Twisted pair no. 6 Twisted pair no. 1 Twisted pair no. 9 Twisted pair no. 5

NIL/LL Twisted pair no. 12 —> Circuit_GND — DTR/DSR+ DTR/DSR– DSR/DTR+ DSR/DTR– DCD/DCD+ DCD/DCD– Twisted pair no. 4 Twisted pair no. 2 Twisted pair no. 3 —> —> <— <— —> —>

RXC/TXCE+ Twisted pair no. 10 <— RXC/TXCE– <— Circuit_GND Twisted pair no. 8 Circuit_GND — —

V.35 Interface
This section contains the following topics:


V.35 Connections V.35 Serial Cable Assembly

V.35 Connections
The V.35 interface is recommended for speeds up to 48 kbps, although in practice it is used successfully at 4 Mbps. The network end of the V.35 adapter cable provides a standard 34-pin Winchester-type connector. (See Figure 17.) V.35 cables are available with a standard V.35 plug or receptacle in either DTE or DCE mode.

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Figure 17

V.35 Adapter Cable Connectors, Network End

DTE

DCE

V.35 Serial Cable Assembly
Figure 18 shows the V.35 serial cable assembly. Table 23 lists the DTE pinout and Table 24 lists the DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.
Figure 18
J1-46 J1-45 J1-16 J1-15

V.35 Serial Cable Assembly
60-pin connector (J1) 34-pin connector (J2) J2-B J2-D J2-A J2-C

H1616a

J1-1 J1-30 J1-31 J1-60

Connectors are not to scale.

J2-KK J2-MM J2-LL J2-NN

Table 23

V.35 DTE Cable Pinout (DB-60 to Winchester-Type 34-Pin)

60-Pin J1-49 J1-48 J1-50 J1-51 J1-52 J1-53 J1-54 J1-55 J1-56 J1-46 J1-45 Shield J1-42 Shield J1-35 Shield

Signal Name MODE_1 GND

Type Shorting group

Direction 34-Pin — — — —

Signal Name — —

MODE_0 Shorting group GND MODE_DCE TxC/NIL RxC_TxCE RxD/TxD GND Shorting group







Shield_GND Single



J2-A J2-B Shield J2-C Shield J2-D Shield

Frame GND Circuit GND — RTS — CTS —

Circuit_GND Twisted pair no. 12 — — — RTS/CTS — CTS/RTS — Twisted pair no. 9 Twisted pair no. 8 —> — <— —

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H1975

27

Serial Connection Signals and Pinouts

Table 23

V.35 DTE Cable Pinout (DB-60 to Winchester-Type 34-Pin) (continued)

60-Pin J1-34 Shield J1-33 Shield J1-43 Shield J1-44 Shield J1-18 J1-17 J1-28 J1-27 J1-20 J1-19 J1-26 J1-25 J1-24 J1-23

Signal Name DSR/DTR — DCD/LL — DTR/DSR — LL/DCD — TxD/RxD+ TxD/RxD– RxD/TxD+ RxD/TxD– TxCE/TxC+ TxCE/TxC– RxC/TxCE+ RxC/TxCE– TxC/RxC+ TxC/RxC–

Type Twisted pair no. 7 Twisted pair no. 6

Direction 34-Pin <— — <— — J2-E Shield J2-F Shield J2-H Shield J2-K Shield J2-P J2-S J2-R J2-T J2-U J2-W J2-V J2-X J2-Y J2-AA

Signal Name DSR — RLSD — DTR — LT — SD+ SD– RD+ RD– SCTE+ SCTE– SCR+ SCR– SCT+ SCT–

Twisted pair no. 10 —> — Twisted pair no. 11 —> — Twisted pair no. 1 Twisted pair no. 5 Twisted pair no. 2 Twisted pair no. 4 Twisted pair no. 3 —> —> <— <— —> —> <— <— <— <—

Table 24

V.35 DCE Cable Pinout (DB-60 to Winchester-Type 34-Pin)

60-Pin J1-49 J1-48 J1-50 J1-51 J1-53 J1-54 J1-55 J1-56 J1-46 J1-45 Shield J1-35 Shield J1-42 Shield J1-43 Shield J1-44 Shield

Signal Name MODE_1 GND MODE_0 GND TxC/NIL RxC_TxCE RxD/TxD GND

Type Shorting group Shorting group Shorting group

Direction 34-Pin — — — — — —

Signal Name — — —

Shield_GND Single



J2-A J2-B Shield J2-C Shield J2-D Shield J2-E Shield J2-F Shield

Frame GND Circuit GND — RTS — CTS — DSR — RLSD —

Circuit_GND Twisted pair no. 12 — — — CTS/RTS — RTS/CTS — DTR/DSR — LL/DCD — Twisted pair no. 8 Twisted pair no. 9 <— — —> —

Twisted pair no. 10 —> — Twisted pair no. 11 —> —

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Table 24

V.35 DCE Cable Pinout (DB-60 to Winchester-Type 34-Pin) (continued)

60-Pin J1-34 Shield J1-33 Shield J1-28 J1-27 J1-18 J1-17 J1-26 J1-25 J1-22 J1-21 J1-20 J1-19

Signal Name DSR/DTR — DCD/LL — RxD/TxD+ RxD/TxD– TxD/RxD+ TxD/RxD– RxC/TxCE+ RxC/TxCE– NIL/RxC+ NIL/RxC– TxCE/TxC+ TxCE/TxC–

Type Twisted pair no. 7 Twisted pair no. 6 Twisted pair no. 5 Twisted pair no. 1 Twisted pair no. 4 Twisted pair no. 3 Twisted pair no. 2

Direction 34-Pin <— — <— — <— <— —> —> <— <— —> —> —> —> J2-H Shield J2-K Shield J2-P J2-S J2-R J2-T J2-U J2-W J2-V J2-X J2-Y J2-AA

Signal Name DTR — LT — SD+ SD– RD+ RD– SCTE+ SCTE– SCR+ SCR– SCT+ SCT–

X.21 Interface
This section contains the following topics:


X.21 Connections X.21 Serial Cable Assembly

X.21 Connections
The X.21 interface uses a 15-pin connection for balanced circuits and is commonly used in the United Kingdom to connect public data networks. X.21 relocates some of the logic functions to the DTE and DCE interfaces and, as a result, requires fewer circuits and a smaller connector than EIA/TIA-232. The network end of the X.21 adapter cable is a standard DB-15 connector. (See Figure 19.) X.21 cables are available as either DTE (DB-15 plug) or DCE (DB-15 receptacle).
Figure 19 X.21 Adapter Cable Connectors, Network End

DTE

15

9

DCE

H1346a

8

1

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X.21 Serial Cable Assembly
Figure 20 shows the X.21 serial cable assembly. Table 25 lists the DTE pinout, and Table 26 lists the DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.
Figure 20
J1-46 J1-45 J1-16 J1-15

X.21 Serial Cable Assembly
60-pin connector (J1) 34-pin connector (J2) J2-8 J2-15

J1-1 J1-30 J1-31 J1-60

H1974

Connectors are not to scale.

J2-9 J2-1

Table 25

X.21 DTE Cable Pinout (DB-60 to DB-15)

60-Pin J1-48 J1-47 J1-51 J1-52 J1-46 J1-11 J1-12 J1-9 J1-10 J1-28 J1-27 J1-1 J1-2 J1-26 J1-25 J1-15 Shield

Signal Name GND MODE_2 GND MODE_DCE Shield_GND TXD/RXD+ TXD/RXD– RTS/CTS+ RTS/CTS– RXD/TXD+ RXD/TXD– CTS/RTS+ CTS/RTS– RXC/TXCE+ RXC/TXCE– Control_GND —

Type Shorting group Shorting group Single Twisted pair no. 3 Twisted pair no. 2 Twisted pair no. 6 Twisted pair no. 1 Twisted pair no. 5 Twisted pair no. 4

Direction 15-Pin — — — —> —> —> —> <— <— <— <— <— <— — — — — J2-1 J2-2 J2-9 J2-3 J2-10 J2-4 J2-11 J2-5 J2-12 J2-6 J2-13 J2-8 Shield

Signal Name — — Shield GND Transmit+ Transmit– Control+ Control– Receive+ Receive– Indication+ Indication– Timing+ Timing– Control GND —

Table 26

X.21 Serial DCE Cable Pinout (DB-60 to DB-15)

60-Pin Signal Name J1-48 J1-47 J1-46 GND MODE_2 Shield_GND

Type Shorting group Single

Direction 15-Pin Signal Name — — — J2-1 — Shield GND

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Table 26

X.21 Serial DCE Cable Pinout (DB-60 to DB-15) (continued)

60-Pin Signal Name J1-28 J1-27 J1-1 J1-2 J1-11 J1-12 J1-9 J1-10 J1-24 J1-23 RXD/TXD+ RXD/TXD– CTS/RTS+ CTS/RTS– TXD/RXD+ TXD/RXD– RTS/CTS+ RTS/CTS– TXC/RXC+ TXC/RXC–

Type Twisted pair no. 6 Twisted pair no. 1 Twisted pair no. 3 Twisted pair no. 2 Twisted pair no. 4 Twisted pair no. 5

Direction 15-Pin Signal Name <— <— <— <— —> —> —> —> —> —> — — J2-2 J2-9 J2-3 J2-10 J2-4 J2-11 J2-5 J2-12 J2-6 J2-13 Transmit+ Transmit– Control+ Control– Receive+ Receive– Indication+ Indication– Timing+ Timing–

J1-15 Control_GND Shield —

J2-8 Control GND Shield —

EIA-530 Interface
This section contains the following topics:


EIA-530 Connections EIA-530 Serial Cable Assembly

EIA-530 Connections
EIA-530, which supports balanced transmission, provides the increased functionality, speed, and distance of EIA/TIA-449 on the smaller DB-25 connector used for EIA/TIA-232, instead of the 37-pin connectors used for EIA/TIA-449. Like EIA/TIA-449, EIA-530 refers to the electrical specifications of EIA/TIA-422 and EIA/TIA-423. Although the specification recommends a maximum speed of 2 Mbps, EIA-530 is used successfully at 4 Mbps or faster speeds over short distances. The EIA-530 adapter cable is available in DTE mode only. The network end of the EIA-530 adapter cable is a standard DB-25 plug commonly used for EIA/TIA-232 connections. Figure 21 shows the DB-25 connector at the network end of the adapter cable.
Figure 21 EIA-530 Adapter Cable Connector, Network End
H1615a

DTE

EIA-530 Serial Cable Assembly
Figure 22 shows the EIA-530 serial cable assembly, and Table 27 lists the pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE. The EIA-530 interface cannot be operated in DCE mode, and no DCE cable is available for it.

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Serial Connection Signals and Pinouts

Figure 22
J1-46 J1-45 J1-16 J1-15

EIA-530 Serial Cable Assembly
60-pin connector (J1) 25-pin connector (J2) J2-13 J2-25

H1972

J1-1 J1-30 J1-31 J1-60

J2-14 J2-1 Connectors are not to scale.

Table 27

EIA-530 DTE Cable Pinout (DB-60 to DB-25)

60-Pin J1-11 J1-12 J1-28 J1-27 J1-9 J1-10 J1-1 J1-2 J1-3 J1-4 J1-46 J1-47 J1-48 J1-49 J1-5 J1-6 J1-24 J1-23 J1-26 J1-25 J1-44 J1-45 J1-7 J1-8 J1-13 J1-14 J1-51 J1-52

Signal Name TXD/RXD+ TXD/RXD– RXD/TXD+ RXD/TXD– RTS/CTS+ RTS/CTS– CTS/RTS+ CTS/RTS– DSR/DTR+ DSR/DTR–

25-Pin J2-2 J2-14 J2-3 J2-16 J2-4 J2-19 J2-5 J2-13 J2-6 J2-22

Signal Name BA(A), TXD+ BA(B), TXD– BB(A), RXD+ BB(B), RXD– CA(A), RTS+ CA(B), RTS– CB(A), CTS+ CB(B), CTS– CC(A), DSR+ CC(B), DSR– Shield — — — CF(A), DCD+ CF(B), DCD– DB(A), TXC+ DB(B), TXC– DD(A), RXC+ DD(B), RXC– LL Circuit_ GND CD(A), DTR+ CD(B), DTR– DA(A), TXCE+ DA(B), TXCE– — —

Direction —> —> <— <— —> —> <— <— <— <— Shorted Shorted <— <— <— <— <— <— —> — —> —> —> —> Shorted

Shield_GND J2-1 MODE_2 — GND MODE_1 DCD/DCD+ DCD/DCD– TXC/RXC+ TXC/RXC– — — J2-8 J2-10 J2-15 J2-12

RXC/TXCE+ J2-17 RXC/TXCE– J2-9 LL/DCD J2-18 Circuit_GND J2-7 DTR/DSR+ DTR/DSR– J2-20 J2-23

TXCE/TXC+ J2-24 TXCE/TXC– J2-11 GND — MODE_DCE —

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Smart Serial Connection Signals and Pinouts
The Smart Serial cable interface supports multiple independent serial interface ports. Each port supports five types of serial interfaces:


EIA/TIA-232 Smart Serial Cable Assembly EIA/TIA-449 Smart Serial Cable Assembly X.21 Smart Serial Cable Assembly V.35 Smart Serial Cable Assembly EIA-530 Smart Serial Cable Assembly

The serial end (router end) of the Smart Serial cable is a 26-pin connector. These cables are used with the following interface cards:


2-port serial and 2-port asynchronous or synchronous WICs 4-port serial and 4-port asynchronous or synchronous high-speed WICs (HWICs)

Figure 23 shows the serial cables you can connect to the port on the asynchronous or synchronous serial modules and the serial WICs and HWICs.
Figure 23 Smart Serial Interface Cables
Router connections

EIA/TIA-232

EIA/TIA-449

V.35

X.21

EIA-530

Network connections at the modem or CSU/DSU

Cisco Modular Access Router Cable Specifications OL-6453-02

H2485

33

Smart Serial Connection Signals and Pinouts

EIA/TIA-232 Smart Serial Cable Assembly
Table 28 lists the DTE pinout, and Table 29 lists the DCE pinout for the EIA/TIA-232 Smart Serial cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.
Table 28 EIA/TIA-232 DTE Smart Serial Cable Pinout

26-Pin Signal Name J1-23 J1-24 Drain wire J1-05 J1-18 J1-01 J1-14 J1-11 J1-12 J1-08 J1-07 J1-06 J1-19 J1-03 J1-16 J1-02 J1-15 J1-13 J1-26 J1-04 J1-17 I_RXD/TXD+ GND+ O_TXD/RXD+ GND+ I_CTS/RTS+ I_DSR/DTR+ O_RTS/CTS O_DTR/DSR+ B_DCD/DCD+ GND+ B_TXC/TXC+ GND+ MODE_0 MODE_DCE

Note Local connections Shield Twisted pair no. 9 Twisted pair no. 5 Twisted pair no. 2 Twisted pair no. 4 Twisted pair no. 1 Twisted pair no. 7

Direction DB-25 Pin Signal Name

— <— — —> — <— <— —> —> <— — <— — —> — —> — <— —

J2-01 J2-03 J2-02 J2-05 J2-06 J2-04 J2-20 J2-08 J2-07 J2-15 J2-24 J2-18 J2-17

Shield_GND RXD GND TXD GND CTS DSR RTS DTR DCD GND TXC GND TXCE GND LTST GND RXC GND

O_TXCE/RXC+ Twisted pair no. 6 GND+ B_LL/LL+ GND+ I_RXC/TXCE+ GND+ Twisted pair no. 3 Twisted pair no. 8

Table 29

EIA/TIA-232 DCE Smart Serial Cable Pinout

26-Pin Signal Name J1-23 Drain wire J1-05 J1-18 J1-01 J1-14 J1-11 J1-12 J1-08 J1-07 I_RXD/TXD+ GND+ O_TXD/RXD+ GND+ I_CTS/RTS+ I_DSR/DTR+ O_RTS/CTS O_DTR/DSR+ MODE_0

Note Local connections Shield Twisted pair no. 5 Twisted pair no. 9 Twisted pair no. 2 Twisted pair no. 4

Direction DB-25 Pin Signal Name — <— — —> — <— <— —> —> J2-01 J2-02 J2-03 J2-04 J2-20 J2-05 J2-06 Shield_GND TXD GND RXD GND RTS DTR CTS DSR

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Table 29

EIA/TIA-232 DCE Smart Serial Cable Pinout (continued)

26-Pin Signal Name J1-06 J1-19 J1-03 J1-16 J1-02 J1-15 J1-13 J1-26 J1-04 J1-17 B_DCD/DCD+ GND+ B_TXC/TXC+ GND+

Note Twisted pair no. 1 Twisted pair no. 7

Direction DB-25 Pin Signal Name —> — —> — —> — <— — <— — J2-08 J2-07 J2-15 J2-17 J2-18 J2-24 DCD GND TXC GND RXC GND LTST GND TXCE GND

O_TXCE/RXC+ Twisted pair no. 8 GND+ B_LL/LL+ GND+ I_RXC/TXCE+ GND+ Twisted pair no. 3 Twisted pair no. 6

EIA/TIA-449 Smart Serial Cable Assembly
Table 30 lists the DTE pinout, and Table 31 lists the DCE pinout for the EIA/TIA-449 Smart Serial cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.
Table 30 EIA/TIA-449 DTE Smart Serial Cable Pinout

26-Pin Signal Name Drain wire J1-22 J1-24 J1-01 J1-14 J1-03 J1-16 J1-05 J1-18 J1-08 J1-09 J1-04 J1-17 J1-11 J1-10 J1-13 J1-26 J1-12 J1-25 J1-07 J1-20 MODE_I MODE_DCE O_TXD/RXD+ O_TXD/RXD– B_TXC/TXC+ B_TXC/TXC– I_RXD/TXD+ I_RXD/TXD– O_RTS/CTS O_RTS/CTS– I_RXC/TXCE+ I_RXC/TXCE– I_CTS/RTS+ I_CTS/RTS– B_LL/LL+ GND+ I_DTR/DSR+ I_DTR/DSR– O_DTR/DSR+ O_DTR/DSR–

Note Shield Twisted pair no. 2 Twisted pair no. 5 Twisted pair no. 7 Twisted pair no. 9 Twisted pair no. 1 Twisted pair no. 8 Twisted pair no. 4

Direction DB-37 Pin Signal Name — — — —> —> <— <— <— <— —> —> <— <— <— <— J2-01 J2-19 J2-20 J2-04 J2-22 J2-05 J2-23 J2-06 J2-24 J2-07 J2-25 J2-08 J2-26 J2-09 J2-27 J2-10 J2-37 J2-11 J2-29 J2-12 J2-30 Shield_GND SG RC SD+ SD– ST+ ST– RD+ RD– RS+ RS– RT+ RT– CS+ CS– LL SC DM+ DM– TR+ TR–

Twisted pair no. 12 —> — Twisted pair no. 10 <— <— Twisted pair no. 3 —> —>

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Table 30

EIA/TIA-449 DTE Smart Serial Cable Pinout (continued)

26-Pin Signal Name J1-02 J1-15 J1-06 J1-19

Note

Direction DB-37 Pin Signal Name —> —> J2-17 J2-35 J2-13 J2-31 TT+ TT– RR+ RR–

O_TXCE/RXC+ Twisted pair no. 6 O_TXCE/RXC– B_DCD/DCD+ B_DCD/DCD–

Twisted pair no. 11 <— <—

Table 31

EIA/TIA-449 DCE Smart Serial Cable Pinout

26-Pin Signal Name Drain wire J1-22 J1-05 J1-18 J1-03 J1-16 J1-01 J1-14 J1-11 J1-10 J1-02 J1-15 J1-08 J1-09 J1-06 J1-19 J1-07 J1-20 J1-12 J1-25 J1-13 J1-26 J1-04 J1-17 MODE_I Not used I_RXD/TXD+ I_RXD/TXD– B_TXC/TXC+ B_TXC/TXC– O_TXD/RXD+ O_TXD/RXD– I_CTS/RTS+ I_CTS/RTS–

Note Shield Twisted pair no. 2 Twisted pair no. 5 Twisted pair no. 7 Twisted pair no. 9 Twisted pair no. 1

Signal Direction DB-37 Pin Name — — <— <— —> —> —> —> <— <— —> —> —> —> J2-01 J2-19 J2-20 J2-04 J2-22 J2-05 J2-23 J2-06 J2-24 J2-07 J2-25 J2-08 J2-26 J2-09 J2-27 J2-13 J2-31 J2-11 J2-29 J2-12 J2-30 J2-10 J2-37 J2-17 J2-35 Shield_GN D SG RC SD+ SD– ST+ ST– RD+ RD– RS+ RS– RT+ RT– CS+ CS– RR+ RR– DM+ DM– TR+ TR– LL SC TT+ TT–

O_TXCE/RXC+ Twisted pair no. 8 O_TXCE/RXC– O_RTS/CTS O_RTS/CTS– B_DCD/DCD+ B_DCD/DCD– O_DTR/DSR+ O_DTR/DSR– I_DTR/DSR+ I_DTR/DSR– B_LL/LL+ GND+ I_RXC/TXCE+ I_RXC/TXCE– Twisted pair no. 4

Twisted pair no. 11 —> —> Twisted pair no. 10 —> —> Twisted pair no. 3 <— <—

Twisted pair no. 12 —> — Twisted pair no. 6 <— <—

X.21 Smart Serial Cable Assembly
Table 32 lists the DTE pinout, and Table 33 lists the DCE pinout for the X.21 Smart Serial cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

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Table 32

X.21 DTE Smart Serial Cable Pinout

26-Pin Signal Name J1-21 J1-24 Drain wire J1-05 J1-18 J1-01 J1-14 J1-11 J1-10 J1-08 J1-09 J1-26 J1-04 J1-17 I_RXD/TXD+ I_RXD/TXD– O_TXD/RXD+ O_TXD/RXD– I_CTS/RTS+ I_DSR/DTR+ O_RTS/CTS O_DTR/DSR+ GND+ Not used I_RXC/TXCE+ I_RXC/TXCE– Not used Not used Not used MODE_2 MODE_DCE

Note Local connections Shield Twisted pair no. 8 Twisted pair no. 5 Twisted pair no. 2 Twisted pair no. 3 Twisted pair no. 1 Twisted pair no. 7 Twisted pair no. 4 Twisted pair no. 6 Twisted pair no. 9

Direction DB-15 Pin Signal Name

— <— <— —> —> <— <— —> —> — <— <—

J2-01 J2-04 J2-11 J2-03 J2-09 J2-05 J2-12 J2-03 J2-10 J2-08 J2-06 J2-13

Shield_GND RECEIVE+ RECEIVE– TRANSMIT+ TRANSMIT– INDICATION+ INDICATION– CONTROL+ CONTROL– CCT GND Not used TIMING+ TIMING– Not used Not used Not used

Table 33

X.21 DCE Smart Serial Cable Pinout

26-Pin Signal Name J1-21 Drain wire J1-05 J1-18 J1-01 J1-14 J1-11 J1-10 J1-08 J1-09 J1-02 J1-15 J1-26 I_RXD/TXD+ I_RXD/TXD– O_TXD/RXD+ O_TXD/RXD– I_CTS/RTS+ I_DSR/DTR+ O_RTS/CTS O_DTR/DSR+ MODE_2

Note Local connections Shield Twisted pair no. 5 Twisted pair no. 8 Twisted pair no. 3 Twisted pair no. 2

Direction DB-15 Pin Signal Name — <— <— —> —> <— <— —> —> —> —> — J2-01 J2-02 J2-09 J2-04 J2-11 J2-03 J2-10 J2-05 J2-12 J2-06 J2-13 J2-08 Shield_GND TRANSMIT+ TRANSMIT– RECEIVE+ RECEIVE– CONTROL+ CONTROL– INDICATION+ INDICATION– TIMING+ TIMING– CCT GND Not used Not used

O_TXCE/RXC+ Twisted pair no. 7 O_TXCE/RXC+ GND Not used Not used Twisted pair no. 1 Twisted pair no. 4

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Table 33

X.21 DCE Smart Serial Cable Pinout (continued)

26-Pin Signal Name Not used Not used

Note Twisted pair no. 6 Twisted pair no. 9

Direction DB-15 Pin Signal Name Not used Not used

V.35 Smart Serial Cable Assembly
Table 34 lists the DTE pinout, and Table 35 lists the DCE pinout for the V.35 Smart Serial cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.
Table 34 V.35 DTE Smart Serial Cable Pinout

26-Pin Signal Name J1-22 J1-23 J1-24 Drain wire J1-06 J1-19 J1-13 J1-26 J1-05 J1-18 J1-01 J1-14 J1-11 J1-12 J1-08 J1-07 J1-04 J1-17 J1-02 J1-15 J1-03 J1-16 B_DCD/DCD+ GND+ B_LL/LL+ GND I_RXD/TXD+ I_RXD/TXD– O_TXD/RXD+ O_TXD/RXD– I_CTS/RTS+ I_DSR/DTR+ O_RTS/CTS O_DTR/DSR+ I_RXC/TXCE+ I_RXC/TXCE– MODE_1 MODE_0 MODE_DCE

Note Local connections

Direction V.35 Pin

Signal Name

Shield Twisted pair no. 1 Twisted pair no. 3 Twisted pair no. 9 Twisted pair no. 5 Twisted pair no. 2 Twisted pair no. 4 Twisted pair no. 8

— <— — —> — <— <— —> —> <— <— —> —> <— <— —> —> <— <—

J2-A J2-F J2-K J2-B J2-R J2-T J2-P J2-S J2-D J2-E J2-C J2-H J2-V J2-X J2-U J2-W J2-Y J2-AA

Shield_GND RLSD GND LT GND RD+ RD– SD+ SD– CTS DSR RTS DTR SCR+ SCR– SCTE+ SCTE– SCT+ SCT–

O_TCXE/RXC+ Twisted pair no. 6 0_TXCE/RXC– B_TXC/TXC+ B_TXC/TXC– Twisted pair no. 7

Table 35

V.35 DCE Smart Serial Cable Pinout

26-Pin Signal Name J1-22 J1-23 Drain wire MODE_1 MODE_0

Note Local connections Shield

Direction V.35 Pin

Signal Name



J2-A

Shield_GND

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Table 35

V.35 DCE Smart Serial Cable Pinout (continued)

26-Pin Signal Name J1-06 J1-19 J1-13 J1-26 J1-05 J1-18 J1-01 J1-14 J1-11 J1-12 J1-08 J1-07 J1-04 J1-17 J1-02 J1-15 J1-03 J1-16 B_DCD/DCD+ GND+ B_LL/LL+ GND I_RXD/TXD+ I_RXD/TXD– O_TXD/RXD+ O_TXD/RXD– I_CTS/RTS+ I_DSR/DTR+ O_RTS/CTS O_DTR/DSR+ I_RXC/TXCE+ I_RXC/TXCE–

Note Twisted pair no. 1 Twisted pair no. 3 Twisted pair no. 5 Twisted pair no. 9 Twisted pair no. 4 Twisted pair no. 2 Twisted pair no. 6

Direction V.35 Pin —> — —> — <— <— —> —> <— <— —> —> <— <— —> —> —> —> J2-F J2-K J2-B J2-P J2-S J2-R J2-T J2-C J2-H J2-D J2-E J2-U J2-W J2-V J2-X J2-Y J2-AA

Signal Name RLSD GND LT GND SD+ SD– RD+ RD– RTS DSR CTS DSR SCTE+ SCTE– SCR+ SCR– SCT+ SCT–

O_TCXE/RXC+ Twisted pair no. 8 0_TXCE/RXC– B_TXC/TXC+ B_TXC/TXC– Twisted pair no. 7

EIA-530 Smart Serial Cable Assembly
Table 36 lists the DTE pinout, and Table 37 lists the DCE pinout for the EIA-530 Smart Serial cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.
Table 36 EIA-530 DTE Smart Serial Cable Pinout

26-Pin Signal Name J1-21 J1-23 J1-24 Drain wire J1-06 J1-19 J1-13 J1-26 J1-05 J1-18 J1-01 J1-14 J1-11 J1-10 B_DCD/DCD+ B_DCD/DCD– B_LL/LL+ GND I_RXD/TXD+ I_RXD/TXD– O_TXD/RXD+ O_TXD/RXD– I_CTS/RTS+ I_DSR/RTS– MODE_2 MODE_0 MODE_DCE

Note Local connections

Direction DB-25 Pin Signal Name

Shield



J2-01 J2-08 J2-10 J2-18 J2-07 J2-03 J2-16 J2-02 J2-14 J2-05 J2-13

Shield_GND CF(A); DCD+ CF(B); DCD– LL GND BB(A); RXD+ BB(B); RXD– BA(A); TXD+ BA(B); TXD– CB(A); CTS+ CB(B); CTS–

Twisted pair no. 11 <— <— Twisted pair no. 12 —> — Twisted pair no. 9 Twisted pair no. 5 Twisted pair no. 4 <— <— —> —> <— <—

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Table 36

EIA-530 DTE Smart Serial Cable Pinout (continued)

26-Pin Signal Name J1-03 J1-16 J1-12 J1-25 J1-08 J1-09 J1-04 J1-17 J1-02 J1-15 J1-03 J1-16 J1-07 J1-20 B_TXC/TXC+ B_TXC/TXC– I_DSR/DTR+ I_DSR/DTR– O_RTS/CTS O_RTS/CTS– I_RXC/TXCE+ I_RXC/TXCE–

Note Twisted pair no. 7

Direction DB-25 Pin Signal Name <— <— J2-15 J2-12 J2-06 J2-22 J2-04 J2-19 J2-17 J2-09 J2-24 J2-11 J2-15 J2-12 J2-20 J2-23 DB(A); TXC+ DB(B); TXC– CC(A); DSR+ CC(B); DSR– CA(A); RTS+ CA(B); RTS– DD(A); RXC+ DD(B); RXC– DB(A); TXCE+ DB(B); TXCE– DB(A); TXC+ DB(B); TXC– CD(A); DTR+ CD(B); DTR– Not used

Twisted pair no. 10 <— <— Twisted pair no. 1 Twisted pair no. 8 —> —> <— <— —> —> <— <— —> —>

O_TCXE/RXC+ Twisted pair no. 6 0_TXCE/RXC– B_TXC/TXC+ B_TXC/TXC– O_DTR/DSR+ O_DTR/DSR– Not used Twisted pair no. 7 Twisted pair no. 3 Twisted pair no. 2

Table 37

RS-530A DCE Smart Serial Cable Pinout

26-Pin Signal Name J1-21 J1-22 J1-24 Drain wire J1-06 J1-19 J1-13 J1-26 J1-05 J1-18 J1-01 J1-14 J1-11 J1-10 J1-12 J1-25 J1-03 J1-16 J1-08 J1-09 J1-04 J1-17 B_DCD/DCD+ B_DCD/DCD– B_LL/LL+ GND I_RXD/TXD+ I_RXD/TXD– O_TXD/RXD+ O_TXD/RXD– I_CTS/RTS+ I_DSR/RTS– I_DSR/DTR+ GND B_TXC/TXC+ B_TXC/TXC– O_RTS/CTS O_RTS/CTS– I_RXC/TXCE+ I_RXC/TXCE– MODE_2 MODE_1 MODE_DCE

Note Local connections

Direction DB-25 Pin Signal Name

Shield



J2-01 J2-08 J2-10 J2-18 J2-07 J2-03 J2-16 J2-02 J2-14 J2-05 J2-13 J2-06 J2-15 J2-12 J2-04 J2-19 J2-17 J2-09

Shield_GND CF(A); DCD+ CF(B); DCD– LL AB; GND BB(A); RXD+ BB(B); RXD– BA(A); TXD+ BA(B); TXD– CB(A); CTS+ CB(B); CTS– CC(A); DSR+ AC; GND DB(A); TXC+ DB(B); TXCS– CA(A); RTS+ CA(B); RTS– DD(A); RXC+ DD(B); RXC–

Twisted pair no. 11 <— <— Twisted pair no. 12 —> — Twisted pair no. 9 Twisted pair no. 5 Twisted pair no. 4 <— <— —> —> <— <—

Twisted pair no. 10 <— — Twisted pair no. 7 Twisted pair no. 1 Twisted pair no. 8 <— <— —> —> <— <—

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Table 37

RS-530A DCE Smart Serial Cable Pinout (continued)

26-Pin Signal Name J1-02 J1-15 J1-03 J1-16 J1-07 J1-20

Note

Direction DB-25 Pin Signal Name —> —> <— <— —> — J2-24 J2-11 J2-15 J2-12 J2-20 J2-23 DB(A); TXCE+ DB(B); TXCE– DB(A); TXC+ DB(B); TXC– CD(A); DTR+ AC; GND Not used

O_TCXE/RXC+ Twisted pair no. 6 0_TXCE/RXC– B_TXC/TXC+ B_TXC/TXC– O_DTR/DSR+ GND+ Not used Twisted pair no. 7 Twisted pair no. 3 Twisted pair no. 2

Octopus Cable Connection Signals and Pinouts
This section contains the following topics:


4-Port RS-232 Cable Assembly 8-Port RS-232 Cable Assembly

4-Port RS-232 Cable Assembly
The 4-port RS-232 cable was designed for use with the Cisco 8-port RS-232 asynchronous or synchronous high-speed WAN interface card (HWIC) (the Cisco HWIC-8A-RS232). The router end of the cable consists of a 68-pin 2-row D-shell connector. The network end of the cable consists of 4 standard 25-pin D-shell connectors (DB-25 connectors). These cables are available in either DTE or DCE format. See Figure 24.
Figure 24 4-Port RS-232 Cable Connectors, Network End

DTE

DCE

Figure 25 shows the 4-port RS-232 cable assembly. Table 38 lists the cable’s DTE pinout, and Table 39 lists the cable’s DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

127427

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Figure 25

4-Port RS-232 Cable Assembly
DB-25 connectors

J5 68-pin connector (J1) J1-34 J1-68 J4 Pin 25 Pin 13

J3 J1-1 J1-35 J2 Pin 14 Pin 1

Table 38

4-Port RS-232 DTE Cable Pinout

68-Pin Signal Name J1-32 J1-31 J1-67 J1-65 J1-34 J1-68 J1-1 J1-2 J1-9 J1-16 J1-23 J1-30 J1-31 J1-35 J1-36 J1-43 J1-50 J1-57 J1-64 J1-65 J1-68 J1-1 J1-7 J1-38 GND GND GND GND

Note Local mode connection Local mode connection Local mode connection Shorting block

Direction DB-25 Pin Signal Name — — — — — — — — — — — —

Shield_GND TXD/RXD Not used RXD/TXD Not used

Shield Twisted pair Twisted pair

— —> — <— —

J2-01 J2-02 J2-03

Shield_GND TXD GND RXD GND

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Table 38

4-Port RS-232 DTE Cable Pinout (continued)

68-Pin Signal Name J1-41 J1-8 J1-4 J1-37 J1-3 J1-36 J1-5 J1-39 J1-42 J1-2 J1-6 RTS/CTS DTR/DSR CTS/RTS DSR/DTR DCD/LL GND TXC/NIL Not used RXC/TXCE Not used LL/DCD GND TXCE/RXC Not used Shield TXD/RXD Not used RXD/TXD Not used RTS/CTS DTR/DSR CTS/RTS DSR/DTR DCD/LL GND TXC/NIL Not used RXC/TXCE Not used LL/DCD GND TXCE/RXC Not used Shield TXD/RXD Not used RXD/TXD Not used

Note Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair

Direction DB-25 Pin Signal Name —> —> <— <— <— — <— — <— — —> — —> — — J2-04 J2-20 J2-05 J2-06 J2-08 J2-07 J2-15 J2-17 J2-18 J2-07 J2-24 RTS DTR CTS DSR DCD GND TXC GND RXC GND LTST GND TXCE GND Shield_GND TXD GND RXD GND RTS DTR CTS DSR DCD GND TXC GND RXC GND LTST GND TXCE GND Shield_GND TXD GND RXD GND

J1-35 J1-14 J1-45 J1-48 J1-15 J1-11 J1-44 J1-10 J1-43 J1-12 J1-46 J1-49 J1-36 J1-13

J3-01 J3-02 J3-03 J3-04 J3-20 J3-05 J3-06 J3-08 J3-07 J3-15 J3-17 J3-18 J3-07 J3-24

Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair

—> — <— — —> —> <— <— <— — <— — <— — —> — —> — —

J1-30 J1-21 J1-52

J4-01 J4-02 J4-03

Twisted pair Twisted pair

—> — <— —

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Table 38

4-Port RS-232 DTE Cable Pinout (continued)

68-Pin Signal Name J1-55 J1-22 J1-18 J1-51 J1-17 J1-50 J1-19 J1-53 J1-56 J1-31 J1-20 RTS/CTS DTR/DSR CTS/RTS DSR/DTR DCD/LL GND TXC/NIL Not used RXC/TXCE Not used LL/DCD GND TXCE/RXC Not used Shield TXD/RXD Not used RXD/TXD Not used RTS/CTS DTR/DSR CTS/RTS DSR/DTR DCD/LL GND TXC/NIL Not used RXC/TXCE Not used LL/DCD GND TXCE/RXC Not used

Note Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair

Direction DB-25 Pin Signal Name —> —> <— <— <— — <— — <— — —> — —> — — J4-04 J4-20 J4-05 J4-06 J4-08 J4-07 J4-15 J4-17 J4-18 J4-07 J4-24 RTS DTR CTS DSR DCD GND TXC GND RXC GND LTST GND TXCE GND Shield_GND TXD GND RXD GND RTS DTR CTS DSR DCD GND TXC GND RXC GND LTST GND TXCE GND

J1-64 J1-28 J1-59 J1-62 J1-29 J1-25 J1-58 J1-24 J1-57 J1-26 J1-60 J1-63 J1-65 J1-27

J5-01 J5-02 J5-03 J5-04 J5-20 J5-05 J5-06 J5-08 J5-07 J5-15 J5-17 J5-18 J5-07 J5-24

Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair

—> — <— — —> —> <— <— <— — <— — <— — —> — —> —

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Table 39

4-Port RS-232 DCE Cable Pinout

68-Pin Signal Name J1-32 J1-31 J1-67 J1-65 J1-1 J1-2 J1-9 J1-16 J1-23 J1-30 J1-31 J1-35 J1-36 J1-43 J1-50 J1-57 J1-64 J1-65 J1-68 J1-1 J1-38 J1-7 J1-4 J1-37 J1-41 J1-8 J1-42 J1-36 J1-40 J1-6 J1-3 J1-2 J1-39 GND GND GND

Note Local mode connection Local mode connection Shorting block

Direction DB-25 Pin Signal Name — — — — — — — — —

Shield_GND RXD/TXD Not used TXD/RXD Not used CTS/RTS DSR/DTR RTS/CTS DTR/DSR LL/DCD GND NIL/TXC Not used TXCE/RXC Not used DCD/LL/ GND RXC/TXCE Not used Shield RXD/TXD Not used

Shield Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair

— <— — —> — <— <— —> —> —> — —> — —> — <— — <— — —

J2-01 J2-02 J2-03 J2-04 J2-20 J2-05 J2-06 J2-08 J2-07 J2-15 J2-17 J2-18 J2-07 J2-24

Shield_GND TXD GND RXD GND RTS DTR CTS DSR DCD GND TXC GND RXC GND LTST GND TXCE GND Shield_GND TXD GND

J1-35 J1-45

J3-01 J3-02

Twisted pair

<— —

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Table 39

4-Port RS-232 DCE Cable Pinout (continued)

68-Pin Signal Name J1-14 J1-11 J1-44 J1-48 J1-15 J1-49 J1-43 J1-47 J1-13 J1-10 J1-36 J1-46 TXD/RXD Not used CTS/RTS DSR/DTR RTS/CTS DTR/DSR LL/DCD GND NIL/TXC Not used TXCE/RXC Not used DCD/LL/ GND RXC/TXCE Not used Shield RXD/TXD Not used TXD/RXD Not used CTS/RTS DSR/DTR RTS/CTS DTR/DSR LL/DCD GND NIL/TXC Not used TXCE/RXC Not used DCD/LL/ GND RXC/TXCE Not used Shield RXD/TXD Not used

Note Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair

Direction DB-25 Pin Signal Name —> — <— <— —> —> —> — —> — —> — <— — <— — — J3-03 J3-04 J3-20 J3-05 J3-06 J3-08 J3-07 J3-15 J3-17 J3-18 J3-07 J3-24 RXD GND RTS DTR CTS DSR DCD GND TXC GND RXC GND LTST GND TXCE GND Shield_GND TXD GND RXD GND RTS DTR CTS DSR DCD GND TXC GND RXC GND LTST GND TXCE GND Shield_GND TXD GND

J1-30 J1-52 J1-21 J1-18 J1-51 J1-55 J1-22 J1-56 J1-50 J1-54 J1-20 J1-17 J1-31 J1-53

J4-01 J4-02 J4-03 J4-04 J4-20 J4-05 J4-06 J4-08 J4-07 J4-15 J4-17 J4-18 J4-07 J4-24

Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair

<— — —> — <— <— —> —> —> — —> — —> — <— — <— — —

J1-64 J1-59

J5-01 J5-02

Twisted pair

<— —

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Table 39

4-Port RS-232 DCE Cable Pinout (continued)

68-Pin Signal Name J1-28 J1-25 J1-58 J1-62 J1-29 J1-63 J1-57 J1-61 J1-27 J1-24 J1-65 J1-60 TXD/RXD Not used CTS/RTS DSR/DTR RTS/CTS DTR/DSR LL/DCD GND NIL/TXC Not used TXCE/RXC Not used DCD/LL/ GND RXC/TXCE Not used

Note Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair Twisted pair

Direction DB-25 Pin Signal Name —> — <— <— —> —> —> — —> — —> — <— — <— — J5-03 J5-04 J5-20 J5-05 J5-06 J5-08 J5-07 J5-15 J5-17 J5-18 J5-07 J5-24 RXD GND RTS DTR CTS DSR DCD GND TXC GND RXC GND LTST GND TXCE GND

8-Port RS-232 Cable Assembly
The 8-port RS-232 cable was designed for use with the Cisco 8-port and 16-port RS-232 asynchronous HWICs (the Cisco HWIC-8A and Cisco HWIC-16A). The router end of the cable consists of a standard 68-pin 2-row D-shell connector. The network end of the cable provides eight standard 8-pin RJ-45 connectors. These cables are available in DTE format only. See Figure 26.
Figure 26 8-Port RS-232 Cable Connector, Network End

Figure 27 shows the 8-port RS-232 cable assembly. Table 40 lists the DTE pinout for the 8-port RS-232 cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

127424

Cisco Modular Access Router Cable Specifications OL-6453-02

47

Octopus Cable Connection Signals and Pinouts

Figure 27

8-Port RS-232 Cable Assembly
RJ-45 connectors

68-pin connector (J1) J1-34 J1-68

J9 J8 J7 J6 J5 J4 Pin 1
127423

Pin 8

J1-1

J1-35

J3 J2

Table 40

8-Port RS-232 DTE Cable Pinout

68-Pin Signal Name J1-34 J1-68 J1-67 J1-65 J1-4 J1-3 J1-38 J1-36 J1-36 J1-7 J1-8 J1-41 J1-37 J1-5 J1-39 J1-2 J1-2 J1-6 J1-40 J1-42 J1-11 J1-10 J1-45 J1-43 J1-43 J1-14 GND GND CTS/RTS DSR/DTR RXD/TXD RXD GND TXD GND TXD/RXD DTR/DSR RTS/CTS CTS/RTS DSR/DTR RXD/TXD RXD GND TXD GND TXD/RXD DTR/DSR RTS/CTS CTS/RTS DSR/DTR RXD/TXD RXD GND TXD GND TXD/RXD

Note Local mode connection Local mode connection Twisted pair Twisted pair Twisted pair Twisted pair

RJ-45 Pin — — J2-01 J2-02 J2-03 J2-04 J2-05 J2-06 J2-07 J2-08 J3-01 J3-02 J3-03 J3-04 J3-05 J3-06 J3-07 J3-08 J4-01 J4-02 J4-03 J4-04 J4-05 J4-06

Twisted pair Twisted pair Twisted pair Twisted pair

Twisted pair Twisted pair Twisted pair

Cisco Modular Access Router Cable Specifications

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OL-6453-02

Octopus Cable Connection Signals and Pinouts

Table 40

8-Port RS-232 DTE Cable Pinout (continued)

68-Pin Signal Name J1-15 J1-48 J1-44 J1-12 J1-46 J1-9 J1-9 J1-13 J1-47 J1-49 J1-18 J1-17 J1-52 J1-50 J1-50 J1-21 J1-22 J1-55 J1-51 J1-19 J1-53 J1-16 J1-16 J1-20 J1-54 J1-56 J1-25 J1-24 J1-59 J1-57 J1-57 J1-28 J1-29 J1-62 J1-58 J1-26 DTR/DSR RTS/CTS CTS/RTS DSR/DTR RXD/TXD RXD GND TXD GND TXD/RXD DTR/DSR RTS/CTS CTS/RTS DSR/DTR RXD/TXD RXD GND TXD GND TXD/RXD DTR/DSR RTS/CTS CTS/RTS DSR/DTR RXD/TXD RXD GND TXD GND TXD/RXD DTR/DSR RTS/CTS CTS/RTS DSR/DTR RXD/TXD RXD GND TXD GND TXD/RXD DTR/DSR RTS/CTS CTS/RTS DSR/DTR

Note Twisted pair

RJ-45 Pin J4-07 J4-08 J5-01 J5-02 J5-03 J5-04 J5-05 J5-06 J5-07 J5-08 J6-01 J6-02 J6-03 J6-04 J6-05 J6-06 J6-07 J6-08 J7-01 J7-02 J7-03 J7-04 J7-05 J7-06 J7-07 J7-08 J8-01 J8-02 J8-03 J8-04 J8-05 J8-06 J8-07 J8-08 J9-01 J9-02

Twisted pair Twisted pair Twisted pair Twisted pair

Twisted pair Twisted pair Twisted pair Twisted pair

Twisted pair Twisted pair Twisted pair Twisted pair

Twisted pair Twisted pair Twisted pair Twisted pair

Twisted pair

Cisco Modular Access Router Cable Specifications OL-6453-02

49

Octopus Cable Connection Signals and Pinouts

Table 40

8-Port RS-232 DTE Cable Pinout (continued)

68-Pin Signal Name J1-60 J1-23 J1-23 J1-27 J1-61 J1-63 RXD/TXD RXD GND TXD GND TXD/RXD DTR/DSR RTS/CTS

Note Twisted pair Twisted pair Twisted pair

RJ-45 Pin J9-03 J9-04 J9-05 J9-06 J9-07 J9-08

CCSP, CCVP, the Cisco Square Bridge logo, Follow Me Browsing, and StackWise are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, and iQuick Study are service marks of Cisco Systems, Inc.; and Access Registrar, Aironet, ASIST, BPX, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, FormShare, GigaDrive, GigaStack, HomeLink, Internet Quotient, IOS, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, LightStream, Linksys, MeetingPlace, MGX, the Networkers logo, Networking Academy, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing, ProConnect, RateMUX, ScriptShare, SlideCast, SMARTnet, StrataView Plus, TeleRouter, The Fastest Way to Increase Your Internet Quotient, and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries. All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0502R)

Copyright 2004, 2005 Cisco Systems, Inc. All rights reserved.

Cisco Modular Access Router Cable Specifications

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