Cabling Specifications

This appendix provides the following pinout information:

Management Card Console Cable and Pinouts

Figure D-1 shows the management card console cable, and Table D-1 lists the pinouts.

Figure D-1: Management Card Console Cable

Table D-1: Management Card Console Port Pinouts

RJ-45 Pins	Description	DB-25 Female Pins
1	RxD	3
2	GND	7
-	CTS	5¹
-	RTS	4¹
8	TxD	2

¹ Pins 5 and 4 are connected.

Console and Auxiliary Port Signals and Pinouts

Following are the pinouts for the router card auxiliary port (see Table D-2), and the router card console port (Table D-3):

Note To use the auxiliary port as a console port, you must set jumpers on the router card. See the section "Router Card Jumper Settings" in the appendix "Router Card Maintenance."

Table D-2: Router Card Auxiliary Port Pinouts (RJ-45)

Auxiliary Port
Pin	Signal	Input/Output
1	RTS	Output
2	DTR	Output
3	TXD	Output
4	GND	-
5	GND	-
6	RXD	Input
7	DSR	Input
8	CTS	Input

Table D-3: Router Card Console Port Pinouts (RJ-45)

Console Port
Pin	Signal	Input/Output
1	-	-
2	DTR	Output
3	TxD	Output
4	GND	-
5	GND	-
6	RxD	Input
7	DSR	Input
8	-	-

Refer to Table D-4 for a list of the pins used on the RJ-45 connector, the male/female DTE adapter, the male/female DCE adapter, and the male modem adapter used to connect terminals and modems to the Cisco 2518. The connection of pins between the RJ-45 connector and the end device depends on the type of cable used, either straight or rolled. A straight cable connects pin 1 to pin 1, pin 2 to pin 2, and so on. A rolled cable connects pin 1 to pin 8, pin 2 to pin 7, and so on. The Cisco 2518 ships with a rolled cable. Refer to Table D-5 for the cable and adapter configurations that can be used to connect terminals and modems to the Cisco 2518.

Table D-4: Pins for the RJ-45 Connector, M/F DTE, M DCE, and MMOD Adapters

Cable	DB-25 Adapters
RJ-45 Pins	M/F DTE Pins¹	M DCE Pins	MMOD Pins²
1	4	5	5
2	20	6	8
3	2	3	3
4	7	7	7
5	7	7	7
6	3	2	2
7	6	20	20
8	5	4	4

¹ The FDTE adapter that is available through Cisco is labeled "Terminal."
² The MMOD adapter that is available through Cisco is labeled "Modem."

Table D-5: Connection Configuration

Router Card Port	RJ-45 Cable Type	DB-25 Adapter	End Device
Console/auxiliary	Rolled	FDTE	Terminal
Console/auxiliary	Straight	FDCE	Terminal
Console/auxiliary	Rolled	MDCE¹	Modem
Console/auxiliary	Straight	MDTE¹	Modem
Auxiliary/console	Rolled	MMOD¹	Modem

¹ Modify by removing DB-25 pin 6 and replacing it in the Pin 8 position.

BRI Port Pinout and Signals

Table D-6 lists the router card BRI port pinout and signals.

Table D-6: BRI Port Pinout (RJ-45)

Pin¹	TE¹	NT²	Polarity
3	Transmit	Receive	+
4	Receive	Transmit	+
5	Receive	Transmit	-
6	Transmit	Receive	-

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. The console, auxiliary, and BRI ports all use RJ-45 connectors.

¹ TE refers to terminal terminating layer 1 aspects of TE1, TA, and NT2 functional groups.
² NT refers to network terminating layer 1 aspects of NT1 and NT2 functional groups.

RJ-45 Ethernet Port Pinout

Table D-7 lists the pinout for the Ethernet interface ports.

Table D-7: Ethernet Pinout (RJ-45)

RJ-45 Pins	Signal
1	GND
2	GND
3	Tx
4	Rx
5	Tx
6	Rx
7	GND
8	Not used

AUI Ethernet Port Pinout

Table D-7 lists the pinout for the Ethernet AUI port.

Table D-8: Ethernet Pinout (AUI)

AUI Pins	Signal
1	GND
2	GND
3	Tx
4	Rx
5	Tx
6	Rx
7	GND
8	Not used

Serial Cable Assemblies and Pinouts

The following illustrations and tables provide assembly drawings and pinouts for the EIA-530 DCE, and EIA/TIA-232, EIA/TIA-449, V.35, and X.21 DTE and DCE cables.

EIA-530

Figure D-2 shows the EIA-530 serial cable assembly, and Table D-9 lists the pinouts. Arrows indicate signal direction: --> indicates DTE to DCE, and <-- indicates DCE to DTE.

Figure D-2: EIA-530 Serial Cable Assembly

Table D-9: EIA-530 DTE Cable Pinout (DB-60 to DB-25)

60 Pin²	Signal	25 Pin	Signal	Direction DTE DCE¹
J1-1 J1-2	CTS/RTS+ CTS/RTS-	J2-5 J2-13	CB(A), CTS+ CB(B), CTS-	<-- <--
J1-3 J1-4	DSR/DTR+ DSR/DTR-	J2-6 J2-22	CC(A), DSR+ CC(B), DSR-	<-- <--
J1-5 J1-6	DCD/DCD+ DCD/DCD-	J2-8 J2-10	CF(A), DCD+ CF(B), DCD-	<-- <--
J1-7 J1-8	DTR/DSR+ DTR/DSR-	J2-20 J2-23	CD(A), DTR+ CD(B), DTR-	--> -->
J1-9 J1-10	RTS/CTS+ RTS/CTS-	J2-4 J2-19	CA(A), RTS+ CA(B), RTS-	--> -->
J1-11 J1-12	TxD/RxD+ TxD/RxD-	J2-2 J2-14	BA(A), TxD+ BA(B), TxD-	--> -->
J1-13 J1-14	TxCE/TxC+ TxCE/TxC-	J2-24 J2-11	DA(A), TxCE+ DA(B), TxCE-	--> -->
J1-24 J1-23	TxC/RxC+ TxC/RxC-	J2-15 J2-12	DB(A), TxC+ DB(B), TxC-	<-- <--
J1-26 J1-25	RxC/TxCE+ RxC/TxCE-	J2-17 J2-9	DD(A), RxC+ DD(B), RxC-	<-- <--
J1-28 J1-27	RxD/TxD+ RxD/TxD-	J2-3 J2-16	BB(A), RxD+ BB(B), RxD-	<-- <--
J1-44 J1-45	LL/DCD Circuit_GND	J2-18 J2-7	LL Circuit_ GND	--> -
J1-46 J1-47	Shield_GND MODE_2	J2-1 -	Shield -	Shorted
J1-48 J1-49	GND MODE_1	- -	- -	Shorted
J1-51 J1-52	GND MODE_DCE	- -	- -	Shorted

¹ The EIA-530 interface cannot be operated in DCE mode. A DCE cable is not available for the EIA-530 interface.

EIA/TIA-232

Figure D-3 shows the EIA/TIA-232 cable assembly; Table D-10 lists the DTE pinout; and Table D-11 lists the DCE pinout. Arrows indicate signal direction: --> indicates DTE to DCE, and <-- indicates DCE to DTE.

Figure D-3: EIA/TIA-232 Cable Assembly

Table D-10: EIA/TIA-232 DTE Cable Pinout (DB-60 to DB-25)

60 Pin³	Signal	Description	Direction	25 Pin	Signal
J1-50 J1-51 J1-52	MODE_0 GND MODE_DCE	Shorting group	-	-	-
J1-46	Shield GND	Single	-	J2-1	Shield GND
J1-41 Shield	TxD/RxD -	Twisted pair no. 5	--> -	J2-2 Shield	TxD -
J1-36 Shield	RxD/TxD -	Twisted pair no. 9	<-- -	J2-3 Shield	RxD -
J1-42 Shield	RTS/CTS -	Twisted pair no. 4	--> -	J2-4 Shield	RTS -
J1-35 Shield	CTS/RTS -	Twisted pair no. 10	<-- -	J2-5 Shield	CTS -
J1-34 Shield	DSR/DTR -	Twisted pair no. 11	<-- -	J2-6 Shield	DSR -
J1-45 Shield	Circuit GND -	Twisted pair no. 1	- -	J2-7 Shield	Circuit GND -
J1-33 Shield	DCD/LL -	Twisted pair no. 12	<-- -	J2-8 Shield	DCD -
J1-37 Shield	TxC/NIL -	Twisted pair no. 8	<-- -	J2-15 Shield	TxC -
J1-38 Shield	RxC/TxCE -	Twisted pair no. 7	<-- -	J2-17 Shield	RxC -
J1-44 Shield	LL/DCD -	Twisted pair no. 2	--> -	J2-18 Shield	LTST -
J1-43 Shield	DTR/DSR -	Twisted pair no. 3	--> -	J2-20 Shield	DTR -
J1-39 Shield	TxCE/TxC -	Twisted pair no. 6	--> -	J2-24 Shield	TxCE -

Table D-11: EIA/TIA-232 DCE Cable Pinout (DB-60 to DB-25)

60 Pin⁴	Signal	Description	Direction	25 Pin	Signal
J1-50 J1-51	MODE_0 GND	Shorting group	-	-	-
J1-46	Shield GND	Single	-	J2-1	Shield GND
J1-36 Shield	RxD/TxD -	Twisted pair no. 9	<-- -	J2-2 Shield	TxD -
J1-41 Shield	TxD/RxD -	Twisted pair no. 5	--> -	J2-3 Shield	RxD -
J1-35 Shield	CTS/RTS -	Twisted pair no. 10	<-- -	J2-4 Shield	RTS -
J1-42 Shield	RTS/CTS -	Twisted pair no. 4	--> -	J2-5 Shield	CTS -
J1-43 Shield	DTR/DSR -	Twisted pair no. 3	--> -	J2-6 Shield	DSR -
J1-45 Shield	Circuit GND -	Twisted pair no. 1	- -	J2-7 Shield	Circuit GND
J1-44 Shield	LL/DCD -	Twisted pair no. 2	--> -	J2-8 Shield	DCD -
J1-39 Shield	TxCE/TxC -	Twisted pair no. 7	--> -	J2-15 Shield	TxC -
J1-40 Shield	NIL/RxC -	Twisted pair no. 6	--> -	J2-17 Shield	RxC -
J1-33 Shield	DCD/LL -	Twisted pair no. 12	<-- -	J2-18 Shield	LTST -
J1-34 Shield	DSR/DTR -	Twisted pair no. 11	<-- -	J2-20 Shield	DTR -
J1-38 Shield	RxC/TxCE -	Twisted pair no. 8	<-- -	J2-24 Shield	TxCE -

EIA/TIA-449

Figure D-4 shows the EIA/TIA-449 cable assembly; Table D-12 lists the DTE pinout, and Table D-13 lists the DCE pinout. Arrows indicate signal direction: --> indicates DTE to DCE, and <-- indicates DCE to DTE.

Figure D-4: EIA/TIA-449 Cable Assembly

Table D-12: EIA/TIA-449 DTE Cable Pinout (DB-60 to DB-37)

60 Pin⁵	Signal	Description	Direction	37 Pin	Signal
J1-49 J1-48	MODE_1 GND	Shorting group	-	-	-
J1-51 J1-52	GND MODE_DCE	Shorting group	-	-	-
J1-46	Shield_GND	Single	_	J2-1	Shield GND
J1-11 J1-12	TxD/RxD+ TxD/RxD-	Twisted pair no. 6	--> -->	J2-4 J2-22	SD+ SD-
J1-24 J1-23	TxC/RxC+ TxC/RxC-	Twisted pair no. 9	<-- <--	J2-5 J2-23	ST+ ST-
J1-28 J1-27	RxD/TxD+ RxD/TxD-	Twisted pair no. 11	<-- <--	J2-6 J2-24	RD+ RD-
J1-9 J1-10	RTS/CTS+ RTS/CTS-	Twisted pair no. 5	--> -->	J2-7 J2-25	RS+ RS-
J1-26 J1-25	RxC/TxCE+ RxC/TxCE-	Twisted pair no. 10	<-- <--	J2-8 J2-26	RT+ RT-
J1-1 J1-2	CTS/RTS+ CTS/RTS-	Twisted pair no. 1	<-- <--	J2-9 J2-27	CS+ CS-
J1-44 J1-45	LL/DCD Circuit_GND	Twisted pair no. 12	--> _	J2-10 J2-37	LL SC
J1-3 J1-4	DSR/DTR+ DSR/DTR-	Twisted pair no. 2	<-- <--	J2-11 J2-29	DM+ DM-
J1-7 J1-8	DTR/DSR+ DTR/DSR-	Twisted pair no. 4	--> -->	J2-12 J2-30	TR+ TR-
J1-5 J1-6	DCD/DCD+ DCD/DCD-	Twisted pair no. 3	<-- <--	J2-13 J2-31	RR+ RR-
J1-13 J1-14	TxCE/TxC+ TxCE/TxC-	Twisted pair no. 7	--> -->	J2-17 J2-35	TT+ TT-
J1-15 J1-16	Circuit_GND Circuit_GND	Twisted pair no. 9	- -	J2-19 J2-20	SG RC

Table D-13: EIA/TIA-449 DCE Cable Pinout (DB-60 to DB-37)

60 Pin⁶	Signal	Description	Direction	37 Pin	Signal
J1-49 J1-48	MODE_1 GND	Shorting group	-	-	-
J1-46	Shield_GND	Single	-	J2-1	Shield GND
J1-28 J1-27	RxD/TxD+ RxD/TxD-	Twisted pair no. 11	<-- <--	J2-4 J2-22	SD+ SD-
J1-13 J1-14	TxCE/TxC+ TxCE/TxC-	Twisted pair no. 7	--> -->	J2-5 J2-23	ST+ ST-
J1-11 J1-12	TxD/RxD+ TxD/RxD-	Twisted pair no. 6	--> -->	J2-6 J2-24	RD+ RD-
J1-1 J1-2	CTS/RTS+ CTS/RTS-	Twisted pair no. 1	<-- <--	J2-7 J2-25	RS+ RS-
J1-24 J1-23	TxC/RxC+ TxC/RxC-	Twisted pair no. 9	--> -->	J2-8 J2-26	RT+ RT-
J1-9 J1-10	RTS/CTS+ RTS/CTS-	Twisted pair no. 5	--> -->	J2-9 J2-27	CS+ CS-
J1-29 J1-30	NIL/LL Circuit_GND	Twisted pair no. 12	--> -	J2-10 J2-37	LL SC
J1-7 J1-8	DTR/DSR+ DTR/DSR-	Twisted pair no. 4	--> -->	J2-11 J2-29	DM+ DM-
J1-3 J1-4	DSR/DTR+ DSR/DTR-	Twisted pair no. 2	<-- <--	J2-12 J2-30	TR+ TR-
J1-5 J1-6	DCD/DCD+ DCD/DCD-	Twisted pair no. 3	--> -->	J2-13 J2-31	RR+ RR-
J1-26 J1-25	RxC/TxCE+ RxC/TxCE-	Twisted pair no. 10	<-- <--	J2-17 J2-35	TT+ TT-
J1-15 J1-16	Circuit_GND Circuit_GND	Twisted pair no. 8	_ _	J2-19 J2-20	SG RC

V.35

Figure D-5 shows the V.35 cable assembly; Table D-14 lists the DTE pinout, and Table D-15 lists the DCE pinout. Arrows indicate signal direction: --> indicates DTE to DCE, and <-- indicates DCE to DTE.

Figure D-5: V.35 Cable Assembly

Table D-14: V.35 DTE Cable Pinout (DB-60 to 34-Pin)

60 Pin⁷	Signal	Description	Direction	34 Pin	Signal
J1-49 J1-48	MODE_1 GND	Shorting group	-	-	-
J1-50 J1-51 J1-52	MODE_0 GND MODE_DCE	Shorting group	-	-	-
J1-53 J1-54 J1-55 J1-56	TxC/NIL RxC_TxCE RxD/TxD GND	Shorting group	-	-	-
J1-46	Shield_GND	Single	-	J2-A	Frame GND
J1-45 Shield	Circuit_GND -	Twisted pair no. 12	- -	J2-B Shield	Circuit GND -
J1-42 Shield	RTS/CTS -	Twisted pair no. 9	--> -	J2-C Shield	RTS -
J1-35 Shield	CTS/RTS -	Twisted pair no. 8	<-- -	J2-D Shield	CTS -
J1-34 Shield	DSR/DTR -	Twisted pair no. 7	<-- -	J2-E Shield	DSR -
J1-33 Shield	DCD/LL -	Twisted pair no. 6	<-- -	J2-F Shield	RLSD -
J1-43 Shield	DTR/DSR -	Twisted pair no. 10	--> -	J2-H Shield	DTR -
J1-44 Shield	LL/DCD -	Twisted pair no. 11	--> -	J2-K Shield	LT -
J1-18 J1-17	TxD/RxD+ TxD/RxD-	Twisted pair no. 1	--> -->	J2-P J2-S	SD+ SD-
J1-28 J1-27	RxD/TxD+ RxD/TxD-	Twisted pair no. 5	<-- <--	J2-R J2-T	RD+ RD-
J1-20 J1-19	TxCE/TxC+ TxCE/TxC-	Twisted pair no. 2	--> -->	J2-U J2-W	SCTE+ SCTE-
J1-26 J1-25	RxC/TxCE+ RxC/TxCE-	Twisted pair no. 4	<-- <--	J2-V J2-X	SCR+ SCR-
J1-24 J1-23	TxC/RxC+ TxC/RxC-	Twisted pair no. 3	<-- <--	J2-Y J2-AA	SCT+ SCT-

Table D-15: V.35 DCE Cable Pinout (DB-60 to 34-Pin)

60 Pin⁸	Signal	Description	Direction	34 Pin	Signal
J1-49 J1-48	MODE_1 GND	Shorting group	-	-	-
J1-50 J1-51	MODE_0 GND	Shorting group	-	-	-
J1-53 J1-54 J1-55 J1-56	TxC/NIL RxC_TxCE RxD/TxD GND	Shorting group	-	-	-
J1-46	Shield_GND	Single	-	J2-A	Frame GND
J1-45 Shield	Circuit_GND -	Twisted pair no. 12	- -	J2-B Shield	Circuit GND -
J1-35 Shield	CTS/RTS -	Twisted pair no. 8	<-- -	J2-C Shield	RTS -
J1-42 Shield	RTS/CTS -	Twisted pair no. 9	--> -	J2-D Shield	CTS -
J1-43 Shield	DTR/DSR -	Twisted pair no. 10	--> -	J2-E Shield	DSR -
J1-44 Shield	LL/DCD -	Twisted pair no. 11	--> -	J2-F Shield	RLSD -
J1-34 Shield	DSR/DTR -	Twisted pair no. 7	<-- -	J2-H Shield	DTR -
J1-33 Shield	DCD/LL -	Twisted pair no. 6	<-- -	J2-K Shield	LT -
J1-28 J1-27	RxD/TxD+ RxD/TxD-	Twisted pair no. 5	<-- <--	J2-P J2-S	SD+ SD-
J1-18 J1-17	TxD/RxD+ TxD/RxD-	Twisted pair no. 1	--> -->	J2-R J2-T	RD+ RD-
J1-26 J1-25	RxC/TxCE+ RxC/TxCE-	Twisted pair no. 4	<-- <--	J2-U J2-W	SCTE+ SCTE-
J1-22 J1-21	NIL/RxC+ NIL/RxC-	Twisted pair no. 3	--> -->	J2-V J2-X	SCR+ SCR-
J1-20 J1-19	TxCE/TxC+ TxCE/TxC-	Twisted pair no. 2	--> -->	J2-Y J2-AA	SCT+ SCT-

X.21

Figure D-6 shows the X.21 cable assembly; Table D-16 lists the DTE pinout, and Table D-17 lists the DCE pinout. Arrows indicate signal direction: --> indicates DTE to DCE, and <-- indicates DCE to DTE.

Figure D-6: X.21 Cable Assembly

Table D-16: X.21 DTE Cable Pinout (DB-60 to DB-15)

60 Pin⁹	Signal	Description	Direction	15 Pin	Signal
J1-48 J1-47	GND MODE_2	Shorting group	-	-	-
J1-51 J1-52	GND MODE_DCE	Shorting group	-	-	-
J1-46	Shield_GND	Single	-	J2-1	Shield GND
J1-11 J1-12	TxD/RxD+ TxD/RxD-	Twisted pair no. 3	--> -->	J2-2 J2-9	Transmit+ Transmit-
J1-9 J1-10	RTS/CTS+ RTS/CTS-	Twisted pair no. 2	--> -->	J2-3 J2-10	Control+ Control-
J1-28 J1-27	RxD/TxD+ RxD/TxD-	Twisted pair no. 6	<-- <--	J2-4 J2-11	Receive+ Receive-
J1-1 J1-2	CTS/RTS+ CTS/RTS-	Twisted pair no. 1	<-- <--	J2-5 J2-12	Indication+ Indication-
J1-26 J1-25	RxC/TxCE+ RxC/TxCE-	Twisted pair no. 5	<-- <--	J2-6 J2-13	Timing+ Timing-
J1-15 Shield	Control_GND -	Twisted pair no. 4	- -	J2-8 Shield	Control GND -

Table D-17: X.21 DCE Cable Pinout (DB-60 to DB-15)

60 Pin¹⁰	Signal	Description	Direction	15 Pin	Signal
J1-48 J1-47	GND MODE_2	Shorting group	-	-	-
J1-46	Shield_GND	Single	-	J2-1	Shield GND
J1-28 J1-27	RxD/TxD+ RxD/TxD-	Twisted pair no. 6	<-- <--	J2-2 J2-9	Transmit+ Transmit-
J1-1 J1-2	CTS/RTS+ CTS/RTS-	Twisted pair no. 1	<-- <--	J2-3 J2-10	Control+ Control-
J1-11 J1-12	TxD/RxD+ TxD/RxD-	Twisted pair no. 3	--> -->	J2-4 J2-11	Receive+ Receive-
J1-9 J1-10	RTS/CTS+ RTS/CTS-	Twisted pair no. 2	--> -->	J2-5 J2-12	Indication+ Indication-
J1-24 J1-23	TxC/RxC+ TxC/RxC-	Twisted pair no. 4	--> -->	J2-6 J2-13	Timing+ Timing-
J1-15 Shield	Control_GND -	Twisted pair no. 5	- -	J2-8 Shield	Control GND -

Table of Contents

Cabling Specifications