Cable Specifications and Information

Cisco IAD2430 Series Integrated AcceOL-4234-05

A P P E N D I X A
Cable Specifications and Information
This appendix provides the connector and pinout information you need for making or purchasing cables used with Cisco IADs and contains the following sections:

• Console and Auxiliary Port Cables and Pinouts, page A-2

• Serial Cable Assemblies and Pinouts, page A-6

• Fast Ethernet Port Pinouts (RJ-45), page A-16

• T1/E1-WAN and T1/E1-PBX Port Pinouts (RJ-48C/CA81A), page A-17

• Analog Voice Multiport Pinouts (RJ-21X/CA21A), page A-18

• Synchronous Serial Interface Cable Information, page A-19

The following list shows you which table to see for pinout information:

Cisco IAD Port and Connection Type Pinout Information

Console Port to PC—Cable Pinouts (RJ-45 to DB-9) Table A-1 on page A-3

Console Port to ASCII Terminal—Cable Pinouts (RJ-45 to DB-25) Table A-2 on page A-4

Auxiliary Port to Modem—Cable Pinouts (RJ-45 to DB-25) Table A-3 on page A-5

Alternative Terminal and Modem Connections Table A-4 on page A-5

EIA/TIA-530 DTE Cable Pinouts (Cisco 12-in-1 to DB-25) Table A-5 on page A-6

EIA/TIA-530 DCE Cable Pinouts (Cisco 12-in-1 to DB-25) Table A-6 on page A-7

EIA/TIA-530A DTE Cable Pinouts (Cisco 12-in-1 to DB-25) Table A-7 on page A-8

EIA/TIA-530A DCE Cable Pinouts (Cisco 12-in-1 to DB-25) Table A-8 on page A-9





V.35 DTE Cable Pinouts (Cisco 12-in-1 to 34-Pin) Table A-13 on page A-13

V.35 DCE Cable Pinouts (Cisco 12-in-1 to 34-Pin) Table A-14 on page A-14

X.21 DTE Cable Pinouts (Cisco 12-in-1 to DB-15) Table A-15 on page A-15

X.21 DCE Cable Pinouts (Cisco 12-in-1 to DB-15) Table A-16 on page A-16

Fast Ethernet Port Pinouts (RJ-45) Table A-17 on page A-16

A-1ss Devices Hardware Installation Guide

Appendix A Cable Specifications and Information Console and Auxiliary Port Cables and Pinouts

To order cables from Cisco, see the “Obtaining Technical Assistance” section on page xviii.

Console and Auxiliary Port Cables and PinoutsYour Cisco IAD comes with the cable and adapters you need to connect a PC, an ASCII terminal, or a modem to your Cisco IAD. The cable kit includes:

• RJ-45-to-RJ-45 rollover cable

• RJ-45-to-DB-9 adapter cable for console connection

• RJ-45-to-DB-25 adapter cable for modem connection

The following illustrations and tables provide cable pinout information:

• Console port to a PC—See Table A-1 and Table A-4

• Console port to an ASCII terminal—See Table A-2 and Table A-4

• Auxiliary port to a modem—See Table A-3 and Table A-4

The console port is configured as data communications equipment (DCE); the auxiliary port is configured as data terminal equipment (DTE). Both are asynchronous serial ports and use RJ-45 connectors.

Identifying a Rollover CableYou can identify a rollover cable by holding the plugs side by side, with the tab at the back and comparing the modular plugs at the two ends of the cable. 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 A-1 on page A-3.)

If your cable comes from Cisco Systems, pin 1 is white on one plug, and pin 8 is white on the opposite plug. (A rollover cable reverses the wire connections at the opposite ends: 1 to 8, 2 to 7, 3 to 6, 4 to 5, 5 to 4, 6 to 3, 7 to 2, and 8 to 1.)

Pinouts for T1/E1-WAN and T1/E1-PBX Ports (RJ-48C/CA81A) Table A-18 on page A-17

Pinouts for FXS RJ-21X/CA21A) Table A-19 on page A-18

Cisco IAD Port and Connection Type Pinout Information

A-2Cisco IAD2430 Series Integrated Access Devices Hardware Installation Guide

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Figure A-1 Identifying a Rollover Cable

Console Port to PCFigure A-2 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-9 female DTE adapter (labeled TERMINAL); Table A-1 lists the pinouts.

Figure A-2 Console Port to PC—Cable and Adapter

Pin 1 Pin 8

H11

417

Pin 1 and pin 8 are the same color

Table A-1 Console Port to PC—Cable Pinouts (RJ-45 to DB-9)

Console Port(DCE, RJ-45)

RJ-45-to-RJ-45 Rollover Cable

RJ-45-to-DB-9Adapter “TERMINAL”

PC Port(DTE, DB-9)

Signal RJ-45 Pin RJ-45 Pin RJ-45 Pin DB-9 Pin Signal

RTS 11

1. Pin 1 is connected to pin 8 inside the Cisco IAD.

8 8 8 CTS

DTR 2 7 7 6 DSR

TxD 3 6 6 2 RxD

GND 4 5 5 5 GND

GND 5 4 4 5 GND

RxD 6 3 3 3 TxD

DSR 7 2 2 4 DTR

CTS 81 1 1 7 RTS

TE

RM

INA

L

9

6

5

1

RJ-45 cable

8 1

RJ-45-to-DB-9 female adapter

H11

192


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Console Port to ASCII TerminalFigure A-3 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-25 female DTE adapter (labeled TERMINAL); Table A-2 lists the pinouts.

Figure A-3 Console Port to ASCII Terminal—Cable and Adapter

Auxiliary Port to ModemFigure A-4 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-25 male DCE adapter (labeled MODEM); Table A-3 on page A-5 lists the pinouts.

Figure A-4 Auxiliary Port to Modem—Cable and Adapter

Table A-2 Console Port to ASCII Terminal—Cable Pinouts (RJ-45 to DB-25)

Console Port(DCE, RJ-45)

RJ-45-to-RJ-45Rollover Cable

RJ-45-to-DB-25Adapter “TERMINAL”

Terminal Port(DTE, DB-25)


RTS 11

1. Pin 1 is connected to pin 8 inside the Cisco IAD.

8 8 5 CTS

DTR 2 7 7 6 DSR

TxD 3 6 6 3 RxD

GND 4 5 5 7 GND

GND 5 4 4 7 GND

RxD 6 3 3 2 TxD

DSR 7 2 2 20 DTR

CTS 81 1 1 4 RTS

TE

RM

INA

LC

AB

-50

0D

TF

13RJ-45 cable

8 1

RJ-45-to-DB-25 female adapter

H11

1931

14

25

MO

DE

MC

AB

-5M

OD

CMRJ-45 cable

RJ-45-to-DB-25 male adapter

H11

194

8 1

1

25

13

14


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Alternative Connections to Terminal and ModemYour Cisco IAD ships with an RJ-45-to-RJ-45 rollover cable and two adapters for connection to a PC, a terminal, or a modem. If you want to use an RJ-45 straight-through cable or other adapters, see Table A-4 for usable cable and adapter combinations.

Table A-3 Auxiliary Port to Modem—Cable Pinouts (RJ-45 to DB-25)

Auxiliary Port(DTE, RJ-45)

RJ-45-to-RJ-45 Rollover Cable

RJ-45-to-DB-25Adapter “MODEM”

Modem Port(DCE, DB-25)


RTS 1 8 8 4 RTS

DTR 2 7 7 20 DTR

TxD 3 6 6 2 TxD

GND 4 5 5 7 GND

GND 5 4 4 7 GND

RxD 6 3 3 3 RxD

DSR 7 2 2 8 DCD

CTS 8 1 1 5 CTS

Table A-4 Alternative Terminal and Modem Connections

Cisco IAD Port Connection RJ-45 Cable Type Adapter

Console port to PC Straight-through DCE, DB-9 female

Auxiliary port to modem Rollover1

1. An octal cable or RJ-45 breakout cable is equivalent to a rollover cable.

DCE2, DB-25, male

2. Modify the DB-25 adapter by removing the wire in pin 6 and placing it in the pin 8 position.

Straight-through DTE2, DB-25, male


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Appendix A Cable Specifications and Information Serial Cable Assemblies and Pinouts

Serial Cable Assemblies and PinoutsThe following illustrations and tables provide assembly drawings and pinouts for the EIA/TIA-530 DCE, EIA/TIA-232, EIA/TIA-449, V.35, and X.21 DTE and DCE cables. These cables are used with the synchronous serial port, labeled SERIAL 0.

Note These serial cables have a Cisco 12-in-1 connector on the Cisco IAD end.

EIA/TIA-530 Figure A-6 shows the EIA/TIA-530 serial cable assembly; Table A-7 lists the DTE pinouts; Table A-8 on page A-9 lists the DCE pinouts. Arrows indicate signal direction.

Figure A-5 EIA-530 Serial Cable Assembly

Table A-5 EIA/TIA-530 DTE Cable Pinouts (Cisco 12-in-1 to DB-25) 1

J1 Signal Description Direction J2 Signal

J1-21J1-23J1-24

MODE_2MODE_0MODE_DCE

Local connections – – –

– – Shield – J2-1 Shield GND

J1-1J1-14

O_TxD/RxD+O_TxD/RxD–

Twisted pair no. 5 ——>——>

J2-2J2-14

BA(A), TxD+BA(B), TxD–

J1-5J1-18

I_RxD/TxD+I_RxD/TxD–

Twisted pair no. 9 <——<——

J2-3J2-16

BB(A), RxD+BB(B), RxD–

J1-8J1-9

O_RTS/CTS+O_RTS/CTS–


J2-4J2-19

CA(A), RTS+CA(B), RTS–

J1-11J1-10

I_CTS/RTS+I_CTS/RTS–


J2-5J2-13

CB(A), CTS+ CB(B), CTS–

J1-12J1-25

I_DSR/DTR+I_DSR/DTR–

Twisted pair no. 10 <———

J2-6 CC(A), DSR+ AC; GND

J1-6J1-19

IO_DCD/DCD+IO_DCD/DCD–


J2-8J2-10

CF(A), DCD+CF(B), DCD–

9509

8

25-pin connector (J2)

Connectors are not to scale.

J2-13J2-25

J2-14J2-1

Cisco 12-in-1 (J1)J1-1J1-14

J1-26J1-13


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J1-3J1-16

IO_TxC/RxC+IO_TxC/RxC–


J2-15J2-12

DB(A), TxC+DB(B), TxC–

J1-4J1-17

I_RxC/TxCE+I_RxC/TxCE–


J2-17J2-9

DD(A), RxC+DD(B), RxC–

J1-13J1-26

O_LL/DCDCircuit GND

Twisted pair no. 12 ——>—

J2-18J2-7

LL AB; GND

J1-7J1-20

O_DTR/DSR+O_DTR/DSR–


J2-20J2-23

CD(A), DTR+AC; GND

J1-2J1-15

O_TxCE/TxC+O_TxCE/TxC–


J2-24J2-11

DA(A), TxCE+DA(B), TxCE–

– – Twisted pair no. 2 – – Not used

1. Any pin not referenced is not connected.

Table A-6 EIA/TIA-530 DCE Cable Pinouts (Cisco 12-in-1 to DB-25) 1


J1-21J1-23

MODE_2MODE_0

Local Connections – – –


J1-5J1-18



J2-2J2-14


J1-1J1-14



J2-3J2-16


J1-11J1-10



J2-4J2-19


J1-8J1-9



J2-5J2-13


J1-7J1-20



J2-6J2-22

CC(A), DSR+CC(B), DSR–

J1-6J1-19



J2-8J2-10


J1-3J1-16



J2-15J2-12


J1-2J1-15



J2-17J2-9


J1-13J1-26

I_NIL/LLCircuit GND

Twisted pair no. 12 <————

J2-18J2-7

LL AB; GND

J1-12J1-25



J2-20J2-23

CD(A), DTR+AC; GND

Table A-5 EIA/TIA-530 DTE Cable Pinouts (Cisco 12-in-1 to DB-25) 1 (continued)



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EIA/TIA-530AFigure A-6 shows the EIA/TIA-530A serial cable assembly; Table A-7 lists the DTE pinouts; Table A-8 on page A-9 lists the DCE pinouts. Arrows indicate signal direction.

Figure A-6 EIA-530A Serial Cable Assembly

J1-4J1-17



J2-24J2-11




Table A-6 EIA/TIA-530 DCE Cable Pinouts (Cisco 12-in-1 to DB-25) 1 (continued)


Table A-7 EIA/TIA-530A DTE Cable Pinouts (Cisco 12-in-1 to DB-25) 1


J1-21J1-22J1-24




J1-1J1-14



J2-2J2-14


J1-5J1-18



J2-3J2-16


J1-8J1-9



J2-4J2-19


J1-11J1-10



J2-5J2-13


J1-12J1-25



J2-6 CC(A), DSR+ AC; GND

J1-6J1-19



J2-8J2-10


J1-3J1-16



J2-15J2-12


9509

8



J2-13J2-25

J2-14J2-1

Cisco 12-in-1 (J1)J1-1J1-14

J1-26J1-13


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J1-4J1-17



J2-17J2-9


J1-13J1-26

O_LL/DCDCircuit GND


J2-18J2-7

LL AB; GND

J1-7J1-20



J2-20J2-23

CD(A), DTR+AC; GND

J1-2J1-15



J2-24J2-11




Table A-8 EIA/TIA-530A DCE Cable Pinouts (Cisco 12-in-1 to DB-25) 1



J1-21J1-22

MODE_2MODE_1

Local Connections – – –


J1-5J1-18



J2-2J2-14


J1-1J1-14



J2-3J2-16


J1-11J1-10



J2-4J2-19


J1-8J1-9



J2-5J2-13


J1-7J1-20



J2-6 CC(A), DSR+AC; GND

J1-6J1-19



J2-8J2-10


J1-3J1-15



J2-15J2-12


J1-2J1-15



J2-17J2-9


J1-13J1-26

I_NIL/LLCircuit GND

Twisted pair no. 12 <————

J2-18J2-7

LL AB; GND

J1-12J1-25



J2-20J2-23

CD(A), DTR+AC; GND

J1-4J1-17



J2-24J2-11



Table A-7 EIA/TIA-530A DTE Cable Pinouts (Cisco 12-in-1 to DB-25) 1 (continued)



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EIA/TIA-232Figure A-7 shows the EIA/TIA-232 cable assembly; Table A-9 lists the DTE pinouts; Table A-10 on page A-11 lists the DCE pinouts. Arrows indicate signal direction.

Figure A-7 EIA/TIA-232 Cable Assembly




J1-23J1-24

MODE_0MODE_DCE



J1-1J1-14

O_TxD/RxD+GND


J2-2 TxDGND

J1-5J1-18

I_RxD/TxDGND


J2-3 RxDGND

J1-8J1-7

O_CTS/RTS+O_DTR/DSR+


J2-4J2-20

RTSDTR

J1-11J1-12

1_RTS/CTS+1_DTR/DSR+


J2-5J2-6

CTSDSR

J1-6J1-19

B_DCD/DCD+GND


J2-8J2-7

DCDGND

J1-3J1-16

B_TXC/TXC+Circuit GND


J2-15 TXCGND

J1-4J1-17

I_RXC/TXCE+GND


J2-17 RXCGND

J1-13J1-26

B_LL/LL+GND


J2-18 LTSTGND

J1-2J1-15

O_TxCE/RXC+GND

Twisted pair no. 6 ——.—

J2-24 TxCEGND

9509

8



J2-13J2-25

J2-14J2-1

Cisco 12-in-1 (J1)J1-1J1-14

J1-26J1-13


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EIA/TIA-449 Figure A-8 shows the EIA/TIA-449 cable assembly; Table A-11 lists the DTE pinouts; Table A-12 on page A-12 lists the DCE pinouts. Arrows indicate signal direction.

Figure A-8 EIA/TIA-449 Cable Assembly




J1-23 MODE_0 Local connections – – –


J1-5J1-18

I_RxD/TxDGND


J2-2 RxDGND

J1-1J1-14

O_TxD/RxD+GND


J2-3 TxDGND

J1-11J1-12

1_RTS/CTS+1_DTR/DSR+


J2-4J2-20

CTSDSR

J1-8J1-7

O_CTS/RTS+O_DTR/DSR+


J2-5J2-6

RTSDTR

J1-6J1-19

B_DCD/DCD+GND


J2-8J2-7

DCDGND

J1-3J1-16

B_TXC/TXC+Circuit GND


J2-15 TXCGND

J1-2J1-15

O_TxCE/RXC+GND


J2-17 TxCEGND

J1-13J1-26

B_LL/LL+GND


J2-18 LTSTGND

J1-4J1-17

I_RXC/TXCE+GND


J2-24 RXCGND

9509

9



J2-19J2-37

J2-20J2-1

Cisco 12-in-1 (J1)J1-1J1-14

J1-26J1-13


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– – Shield — J2-1 Shield GND

J1-22J1-24

MODE_1MODE_DCE

Twisted pair no. 2 ——>

J2-19J2-20

SGRC

J1-1J1-14



J2-4J2-22

SD+SD–

J1-3J1-16

B_TxC/TxC+B_TxC/TxC–


J2-5J2-23

ST+ST–

J1-5J1-18



J2-6J2-24

RD+RD–

J1-8J1-9



J2-7J2-25

RS+RS–

J1-4J1-17



J2-8J2-26

RT+RT–

J1-11J1-10



J2-9J2-27

CS+CS–

J1-13J1-26

B_LL/LLGND


J2-10J2-37

LLSC

J1-12J1-25



J2-11J2-29

DM+DM–

J1-7J1-20



J2-12J2-30

TR+TR–

J1-6J1-19

B_DCD/DCD+B_DCD/DCD–


J2-13J2-31

RR+RR–

J1-2J1-15



J2-17J2-35

TT+TT–




J1-22 MODE_1 Twisted pair no. 2 – J2-19J2-20

SGRC

J1-5J1-18



J2-4J2-22

SD+SD–

J1-3J1-16



J2-5J2-23

ST+ST–

J1-1J1-14



J2-6J2-24

RD+RD–

J1-11J1-10



J2-7J2-25

RS+RS–


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V.35Figure A-9 shows the V.35 cable assembly; Table A-13 lists the DTE pinouts; Table A-14 on page A-14 lists the DCE pinouts.

Figure A-9 V.35 Cable Assembly

J1-2J1-15

O_TxC/RxC+O_TxC/RxC–


J2-8J2-26

RT+RT–

J1-8J1-9



J2-9J2-27

CS+CS–

J1-13J1-26

B_LL/LL+Circuit GND


J2-10J2-37

LLSC

J1-7J1-20



J2-11J2-29

DM+DM–

J1-12J1-25



J2-12J2-30

TR+TR–

J1-6J1-19

B_DCD/DCD+B_DCD/DCD–


J2-13J2-31

RR+RR–

J1-4J1-17



J2-17J2-35

TT+TT–


Table A-12 EIA/TIA-449 DCE Cable Pinouts (Cisco 12-in-1 to DB-37) 1 (continued)


Table A-13 V.35 DTE Cable Pinouts (Cisco 12-in-1 to 34-Pin) 1


J1-22J1-23J1-24



– – Shield — J2-A Shield GND

9510

1


15-pin connector (J2)J2-BJ2-DJ2-AJ2-C

J2-KKJ2-MMJ2-LLJ2-NN

Cisco 12-in-1 (J1)J1-1J1-14

J1-26J1-13


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J1-8J1-7

O_RTS/CTS+O_DTR/DSR+


J2-CJ2-H

RTSDTR

J1-11J1-12

I_CTS/RTS+I_DSR/DTR+


J2-DJ2-E

CTSDSR

J1-6J1-19

B_DSR/DTR+GND


J2-F RLSDGND

J1-13J1-26

B_LL/LL+GND


J2-KJ2-B

LTGND

J1-1J1-14

O_TxC/RxD+O_TxD/RxD–


J2-PJ2-S

SD+SD-

J1-5J1-18



J2-RJ2-T

RD+RD–

J1-2J1-15

O_TxCE/RxC+O_TxCE/RxC–


J2-UJ2-W

SCTE+SCTE–

J1-4J1-17



J2-VJ2-X

SCR+SCR–

J1-3J1-16


Twisted pair no.7 <——<——

J2-YJ2-AA

SCT+SCT–


Table A-14 V.35 DCE Cable Pinouts (Cisco 12-in-1 to 34-Pin) 1


J1-22J1-23

MODE_1MODE_0


– – Shield — J2-A Shield GND

J1-11J1-12

I_CTS/RTS+I_DSR/DTR+


J2-CJ2-H

RTSDTR

J1-8J1-7

O_RTS/CTS+O_DTR/DSR+


J2-DJ2-E

CTSDSR

J1-6J1-19

B_DCD/DCD+GND


J2-F RLSDGND

J1-13J1-26

B_LL/LL+GND


J2-KJ2-B

LTGND

J1-5J1-18



J2-PJ2-S

SD+SD–

J1-1J1-14

O_TxC/RxD+O_TxD/RxD–


J2-RJ2-T

RD+RD-

J1-4J1-17



J2-UJ2-W

SCTE+SCTE–

Table A-13 V.35 DTE Cable Pinouts (Cisco 12-in-1 to 34-Pin) 1 (continued)



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X.21Figure A-10 shows the X.21 cable assembly; Table A-15 lists the DTE pinouts; Table A-16 on page A-16 lists the DCE pinouts. Arrows indicate signal direction.

Figure A-10 X.21 Cable Assembly

J1-2J1-15

O_TxCE/RxC+O_TxCE/RxC–


J2-VJ2-X

SCR+SCR–

J1-3J1-16


Twisted pair no.7 ——>——>

J2-YJ2-AA

SCT+SCT–


Table A-14 V.35 DCE Cable Pinouts (Cisco 12-in-1 to 34-Pin) 1 (continued)


Table A-15 X.21 DTE Cable Pinouts (Cisco 12-in-1 to DB-15) 1



J1-21J1-24

MODE_1MODE_0



J1-1J1-14



J2-2J2-9

Transmit+Transmit–

J1-8J1-9



J2-3J2-10

Control+Control–

J1-5J1-18



J2-4J2-11

Receive+Receive–

J1-11J1-10



J2-5J2-12

Indication+Indication–

J1-4J1-17



J2-6J2-13

Timing+Timing–

J1-26 Circuit GND Twisted pair2 no. 1

2. Twisted pairs 4, 6, and 9 are not used.

— J2-8 Circuit GND

9510

0



J2-8J2-15

J2-9J2-1

Cisco 12-in-1 (J1)J1-1J1-14

J1-26J1-13


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Appendix A Cable Specifications and Information Fast Ethernet Port Pinouts (RJ-45)

Fast Ethernet Port Pinouts (RJ-45)Figure A-11 shows the RJ-45 connector wiring for the Fast Ethernet cable; Figure A-11 lists the pinouts.

Note Pinout shown is for category 3, 4, or 5 10/100BASE-T connection to a Fast Ethernet switch.

Figure A-11 RJ-45 Connector Wiring

Table A-16 X.21 DCE Cable Pinouts (Cisco 12-in-1 to DB-15) 1


J1-21 MODE_2 Local connections – – –


J1-5J1-8

I_RxT/TxD+I_RxD/TxD–


J2-2J2-9

Transmit+Transmit–

J1-11J1-10

I_RTS/CTS+I_RTS/CTS–


J2-3J2-10

Control+Control–

J1-1J1-14



J2-4J2-11

Receive+Receive–

J1-8J1-9

O_CTS/RTS+O_CTS/RTS–


J2-5J2-12

Indication+Indication–

J1-2J1-15

O_RxC/TxCE+O_RxC/TxCE–


J2-6J2-13

Timing+Timing–

J1-26 Circuit GND Twisted pair2 no. 1 — J2-8 Circuit GND


2. Twisted pairs 4, 6, and 9 are not used.

Table A-17 Fast Ethernet Port Pinouts (RJ-45)

Pin1 Signal

1 TX+

2 TX–

3 RX+

4 –

H11

421

1 8


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Appendix A Cable Specifications and Information T1/E1-WAN and T1/E1-PBX Port Pinouts (RJ-48C/CA81A)

T1/E1-WAN and T1/E1-PBX Port Pinouts (RJ-48C/CA81A)Figure A-12 shows the RJ-48 connector wiring for the T1/E1 trunk cable and the digital voice port cable; Table A-18 lists the pinouts.


5 –

6 RX–

7 –

8 –


Table A-17 Fast Ethernet Port Pinouts (RJ-45) (continued)

Pin1 Signal

Table A-18 Pinouts for T1/E1-WAN and T1/E1-PBX Ports (RJ-48C/CA81A)

Pin1


Signal

1 RX (input)

2 RX (input)

3 –

4 TX (output)

5 TX (output)

6 –

7 –

8 –

H11

419

1 8


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Appendix A Cable Specifications and Information Analog Voice Multiport Pinouts (RJ-21X/CA21A)

Analog Voice Multiport Pinouts (RJ-21X/CA21A)Figure A-13 shows the RJ-21 connector wiring for the cable used for the multiport analog voice interface; Table A-19 lists the pinouts.


Table A-19 Pinouts for FXS RJ-21X/CA21A)

Interface TypeAnalog Voice Line Tip Conductor Ring Conductor

Analog Voice Line Tip Conductor Ring Conductor

FXS 1 26 1 13 38 13

2 27 2 14 39 14

3 28 3 15 40 15

4 29 4 16 41 16

5 30 5 17 42 17

6 31 6 18 43 18

7 32 7 19 44 19

8 33 8 20 45 20

9 34 9 21 46 21

10 35 10 22 47 22

11 36 11 23 48 23

12 37 12 24 49 24

3648

4

RJ-21 cable RJ-21 connector

1 25

5026


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Appendix A Cable Specifications and Information Synchronous Serial Interface Cable Information

Synchronous Serial Interface Cable Information

DTE or DCEA device that communicates over a synchronous serial interface is either a DTE or DCE device. A DCE device provides a clock signal; a DTE device does not provide a clock signal. DTE devices usually connect to DCE devices. The documentation that shipped with the device should indicate whether it is a DTE or DCE device. (Some devices have a jumper to select either mode.) If you cannot find the information in the documentation, refer to Table A-20 to help you select the proper device type. The synchronous serial ports on a Cisco IAD can be configured as DTE or DCE (opposite to the device being connected).

Signaling StandardsThe synchronous serial port supports the following signaling standards: EIA/TIA-232, EIA/TIA-449, V.35, X.21, EIA/TIA-530, and EIA/TIA-530A. You can order a shielded serial transition cable for your application. One end of this cable has a Cisco 12-in-1 connector, which connects to one of the serial ports on the WIC in your Cisco IAD. The other end has the connector required for the signaling standard being used. The documentation for the device you want to connect to should indicate the standard used for that device.

Note All serial ports that are configured as DTE require external clocking from a CSU/DSU or other DCE device.

Figure A-14 on page A-20 shows the serial transition cables you can connect to the serial port on the WIC used in your Cisco IAD.

Table A-20 Typical DTE and DCE Devices

Device Type Connector Gender at Device Typical Devices

DTE Male1

1. If pins protrude from the face of the connector, the connector is male.

• Terminal

• PC

• Multiservice access concentrator

DCE Female2

2. If the connector face has holes to accept pins, the connector is female.

• Modem

• CSU/DSU3

• Multiplexer

3. CSU/DSU–channel service unit/data service unit.


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Figure A-14 Serial Transition Cables

Although attempting to manufacture your own serial cables is not recommended, cable pinouts are provided in the “Serial Cable Assemblies and Pinouts” section on page A-6. To order a cable, see the “Obtaining Technical Assistance” section on page xviii.

Timesaver We recommend that you use the standard Cisco cables shown in Figure A-14 to ensure quick and trouble-free interconnection of serial devices.

EIA/TIA-232 Connections

The EIA/TIA-232 standard supports unbalanced circuits at signal speeds up to 64 kbps.

For connection to a Cisco IAD serial port, use the EIA/TIA-232 serial transition cable with the Cisco 12-in-1 connector on one end and a DB-25 connector (as shown in Figure A-15) on the other. The DB-25 connector can be male for DTE or female for DCE. To order a cable, see the “Obtaining Technical Assistance” section on page xviii.

Figure A-15 EIA/TIA-232 Serial Transition Cable Connectors

Connections at Cisco IAD serial port

EIA/TIA-449 V.35 X.21

Connections at the modem or CSU/DSU 3648

3EIA/TIA-232 EIA-530

H13

43a

DTE

DCE


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The EIA/TIA-449 standard, which supports balanced and unbalanced transmissions, is a faster (up to 2 Mbps) version of the EIA/TIA-232 standard that provides more functions and supports transmission over greater distances.

The EIA/TIA-449 standard was intended to replace the EIA/TIA-232 standard. However, this standard was not widely adopted because of the large installed base of DB-25 hardware. Also, the larger size of the 37-pin EIA/TIA-449 connectors limited the number of connections possible (fewer than are possible with the smaller, 25-pin EIA/TIA-232 connector).

To make a connection to a Cisco IAD serial port, use the EIA/TIA-449 serial transition cable with the Cisco 12-in-1 connector on one end and a DB-37 connector (as shown in Figure A-16) on the other. The DB-37 connector can be male for DTE or female for DCE. To order a cable, see the “Obtaining Technical Assistance” section on page xviii.


V.35 Connections

The V.35 standard is recommended for speeds up to 48 kbps, although in practice it is used successfully at 4 Mbps. The Cisco IAD supports speeds up to 2.048 Mbps.

Use the V.35 serial transition cable (not included) with the Cisco 12-in-1 connector on one end and a standard 34-pin Winchester-type connector (as shown in Figure A-17) on the other. The 34-pin Winchester-type connector can be male for DTE or female for DCE. To order a cable, see the “Obtaining Technical Assistance” section on page xviii.

Figure A-17 V.35 Serial Transition Cable Connectors

H13

44a

DTE

DCE

H16

16a

DTE

DCE


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X.21 Connections

The X.21 connector uses a 15-pin connector for balanced circuits and is commonly used in the United Kingdom to connect to the public data network. 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.

Use the X.21 serial transition cable (not included) with the Cisco 12-in-1 connector on one end and a DB-15 connector (as shown in Figure A-18) on the other. The DB-15 connector can be male for DTE or female for DCE. To order a cable, see the “Obtaining Technical Assistance” section on page xviii.

Figure A-18 X.21 Serial Transition Cable Connectors


The EIA/TIA-530 standard, 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. Like EIA/TIA-449, EIA/TIA-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/TIA-530 is used successfully at 4 Mbps or faster speeds over short distances. Cisco IADs support speeds up to 2.048 Mbps.

Use the EIA/TIA-530 serial transition cable (not included) with the Cisco 12-in-1 connector on one end and a DB-25 connector (as shown in Figure A-19) on the other. The DB-25 connector can be male for DTE or female for DCE. To order a cable, see the “Obtaining Technical Assistance” section on page xviii.


18

15 9DCE

DTE

H13

46a

H13

43a

DTE

DCE


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Cable Specifications and Information

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