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Cabling Specifications

Cabling Specifications

Cabling Specifications

This appendix provides pinouts for the following:


Console and Auxiliary Port Signals and Pinouts

The console port is configured as data communications equipment (DCE), and the auxiliary port is configured as data terminal equipment (DTE). The console and auxiliary ports both use RJ-45 connectors. RJ-45-to-DB-25 adapters are available for connection to modems and other external communications equipment. Both ports are configured as asynchronous serial ports.

Following are the pinouts for the console port (see Table A-1), the auxiliary port (see Table A-2), and the adapter (see Table A-21):

Table A-1 : Console Port Pinouts (RJ-45)

Console Port (DTE)
Pin1 Signal Input/Output
1 -- --
2 DTR Output
3 TxD Output
4 GND --
5 GND --
6 RxD Input
7 DSR Input
8 -- --

1 Any pin not referenced is not connected.

Table A-2 : Auxiliary Port Pinouts (RJ-45)

Auxiliary Port (DTE)
Pin1 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

1 Any pin not referenced is not connected.


BRI Port Pinouts

The pinouts for the BRI interface port appear in Table A-3.

Table A-3 : BRI Port Pinouts (RJ-45)

Pin1 TE2 NT3 Polarity
3 Transmit Receive +
4 Receive Transmit +
5 Receive Transmit --
6 Transmit Receive --

1 Pins 1, 2, 7, and 8 are not used.
2 TE refers to terminal terminating layer 1 aspects of TE1, TA, and NT2 functional groups.
3 NT refers to network terminating layer 1 aspects of NT1 and NT2 functional groups.

fig_2.gif 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.

fig_1.gif Warning Network hazardous voltages are accessible in the BRI cable. If you detach the BRI cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are accessible on the system card in the area of the BRI port (RJ-45 connector), even when power is turned OFF.


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.

Note All serial cables have a DB-60 connector on the router end. The following pinouts represent only the router ends of the cables. Because of the small pins on the DB-60 connector, manufacturing and soldering these cables yourself might be very difficult and is not recommended.


EIA-530

Figure A-1 shows the EIA-530 serial cable assembly, and Table A-4 lists the pinouts. Arrows indicate signal direction. A right arrow (--->) indicates DTE to DCE, and a left arrow (<---) indicates DCE to DTE.

Figure A-1 : EIA-530 Serial Cable Assembly

fig_3.gif

Table A-4 : EIA-530 DTE Cable Pinouts (DB-60 to DB-25)


60 Pin1
Signal
25 Pin
Signal 		Direction
DTE DCE2
60 Pin
Signal
25 Pin
Signal 		Direction
DTE DCE
J1-11
J1-12 		TxD/RxD+
TxD/RxD-- 		J2-2
J2-14 		BA(A), TxD+
BA(B), TxD-- 		--->
---> 		J1-5
J1-6 		DCD/DCD+
DCD/DCD-- 		J2-8
J2-10 		CF(A), DCD+
CF(B), DCD-- 		<---
<---
J1-28
J1-27 		RxD/TxD+
RxD/TxD-- 		J2-3
J2-16 		BB(A), RxD+
BB(B), RxD-- 		<---
<--- 		J1-24
J1-23 		TxC/RxC+
TxC/RxC-- 		J2-15
J2-12 		DB(A), TxC+
DB(B), TxC-- 		<---
<---
J1-9
J1-10 		RTS/CTS+
RTS/CTS-- 		J2-4
J2-19 		CA(A), RTS+
CA(B), RTS-- 		--->
---> 		J1-26
J1-25 		RxC/TxCE+
RxC/TxCE-- 		J2-17
J2-9 		DD(A), RxC+
DD(B), RxC-- 		<---
<---
J1-1
J1-2 		CTS/RTS+
CTS/RTS-- 		J2-5
J2-13 		CB(A), CTS+
CB(B), CTS-- 		<---
<--- 		J1-44
J1-45 		LL/DCD
Circuit_GND 		J2-18
J2-7 		LL
Circuit_ GND 		--->
--
J1-3
J1-4 		DSR/DTR+
DSR/DTR-- 		J2-6
J2-22 		CC(A), DSR+
CC(B), DSR-- 		<---
<--- 		J1-7
J1-8 		DTR/DSR+
DTR/DSR-- 		J2-20
J2-23 		CD(A), DTR+
CD(B), DTR-- 		--->
--->
J1-46
J1-47 		Shield_GND
MODE_2 		J2-1
-- 		Shield
-- 		Shorted J1-13
J1-14 		TxCE/TxC+
TxCE/TxC-- 		J2-24
J2-11 		DA(A), TxCE+
DA(B), TxCE-- 		--->
--->
J1-48
J1-49 		GND
MODE_1 		--
-- 		--
-- 		Shorted J1-51
J1-52 		GND
MODE_DCE 		--
-- 		--
-- 		Shorted

1 Any pin not referenced is not connected.
2 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 A-2 shows the EIA/TIA-232 cable assembly; Table A-5 lists the DTE pinouts; and Table A-6 lists the DCE pinouts. Arrows indicate signal direction. A right arrow (--->) indicates DTE to DCE, and a left arrow (<---) indicates DCE to DTE.

Figure A-2 : EIA/TIA-232 Cable Assembly

h1972.gif

Table A-5 : EIA/TIA-232 DTE Cable Pinouts (DB-60 to DB-25)

60 Pin1 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
--

1 Any pin not referenced is not connected.

Table A-6 : EIA/TIA-232 DCE Cable Pinouts (DB-60 to DB-25)

60 Pin1 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
--

1 Any pin not referenced is not connected.


EIA/TIA-449

Figure A-3 shows the EIA/TIA-449 cable assembly; Table A-7 lists the DTE pinouts; Table A-8 lists the DCE pinouts. Arrows indicate signal direction. A right arrow (--->) indicates DTE to DCE, and a left arrow (<---) indicates DCE to DTE.

Figure A-3 : EIA/TIA-449 Cable Assembly

h1973.gif

Table A-7 : EIA/TIA-449 DTE Cable Pinouts (DB-60 to DB-37)

60 Pin1 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

1 Any pin not referenced is not connected.

Table A-8 : EIA/TIA-449 DCE Cable Pinouts (DB-60 to DB-37)

60 Pin1 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

1 Any pin not referenced is not connected.


V.35

Figure A-4 shows the V.35 cable assembly; Table A-9 lists the DTE pinouts; Table A-10 lists the DCE pinouts. Arrows indicate signal direction. A right arrow (--->) indicates DTE to DCE, and a left arrow (<---) indicates DCE to DTE.

Figure A-4 : V.35 Cable Assembly

h1975.gif

Table A-9 : V.35 DTE Cable Pinouts (DB-60 to 34-Pin)

60 Pin1 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--

1 Any pin not referenced is not connected.

Table A-10 : V.35 DCE Cable Pinouts (DB-60 to 34-Pin)

60 Pin1 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--

1 Any pin not referenced is not connected.


X.21

Figure A-5 shows the X.21 cable assembly; Table A-11 lists the DTE pinouts; Table A-12 lists the DCE pinouts. Arrows indicate signal direction. A right arrow (--->) indicates DTE to DCE, and a left arrow (<---) indicates DCE to DTE.

Figure A-5 : X.21 Cable Assembly

h1974.gif

Table A-11 : X.21 DTE Cable Pinouts (DB-60 to DB-15)

60 Pin1 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
--

1 Any pin not referenced is not connected.

Table A-12 : X.21 DCE Cable Pinouts (DB-60 to DB-15)

60 Pin1 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
--

1 Any pin not referenced is not connected.


Ethernet Cable Assembly and Pinouts

Figure A-6 shows an Ethernet (AUI) cable assembly, and Table A-13 lists an AUI cable pinouts.

Figure A-6 : Ethernet (AUI) Cable Assembly

h1031.gif

Table A-13 : Ethernet (AUI) Cable Pinouts (DB-15)

Pin1 Ethernet Circuit Signal
3 DO-A Data Out Circuit A
10 DO-B Data Out Circuit B
11 DO-S Data Out Circuit Shield
5 DI-A Data In Circuit A
12 DI-B Data In Circuit B
4 DI-S Data In Circuit Shield
2 CI-A Control In Circuit A
9 CI-B Control In Circuit B
1 CI-S Control In Circuit Shield
6 VC Voltage Common
13 VP Voltage Plus
14 VS Voltage Shield (L25 and M25)
Shell PG Protective Ground

1 Any pin not referenced is not connected.


Token Ring Pinouts

The pinouts for the Token Ring interface port is in Table A-14.

Table A-14 : Token Ring Port Pinouts (DB-9)

9 Pin1 Signal
1 Receive
3 +5V2
5 Transmit
6 Receive
9 Transmit

1 Pins 2, 4, 7, and 8 are ground.
2 600 mA maximum.


Asynchronous Serial Ports

Figure A-7 shows the RJ-45 breakout cable with pinouts for the 68-pin SCSI port and the RJ-45 serial port. Table A-15 contains the pinouts for the RJ-45 end, and Table A-16 contains the pinouts for the 68-pin SCSI type connector. Refer to the section "RJ-45 Adapter Pinouts" for cable and adapter configurations that can be used to connect terminals and modems to Cisco 2500 series products.

Figure A-7 : Asynchronous Serial Interface Breakout Cable Assembly

h2592.gif

Table A-15 : Asynchronous Breakout Cable Pinouts (8-Pin RJ-45)

8-Pin RJ-45 Signal Direction
1 CTS <---
2 DSR/DCD <---
3 RXD <---
4 GND -
5 GND -
6 TXD --->
7 DTR --->
8 RTS --->

Table A-16 : Asynchronous Breakout Cable Pinouts (68-Pin SCSI)

RJ-45 Plug Pin Signal 68-Pin
SCSI (J1)
1 8 RTS 2
7 DTR 36
6 TXD 3
5 TXD GND 37
4 RXD GND 4
3 RXD 38
2 DSR 5
1 CTS 39
2 8 RTS 6
7 DTR 40
6 TXD 7
5 TXD GND 41
4 RXD GND 8
3 RXD 42
2 DSR 9
1 CTS 43
3 8 RTS 10
7 DTR 44
6 TXD 11
5 TXD GND 45
4 RXD GND 12
3 RXD 46
2 DSR 13
1 CTS 47
4 8 RTS 14
7 DTR 48
6 TXD 15
5 TXD GND 49
4 RXD GND 16
3 RXD 50
2 DSR 17
1 CTS 51
5 8 RTS 18
7 DTR 52
6 TXD 19
5 TXD GND 53
4 RXD GND 20
3 RXD 54
2 DSR 21
1 CTS 55
6 8 RTS 22
7 DTR 56
6 TXD 23
5 TXD GND 57
4 RXD GND 24
3 RXD 58
2 DSR 25
1 CTS 59
7 8 RTS 26
7 DTR 60
6 TXD 27
5 TXD GND 61
4 RXD GND 28
3 RXD 62
2 DSR 29
1 CTS 63
8 8 RTS 30
7 DTR 64
6 TXD 31
5 TXD GND 65
4 RXD GND 32
3 RXD 66
2 DSR 33
1 CTS 67

Figure A-8 shows the DB-25 breakout cable with pinouts for the 68-pin port and the DB-25 port. Table A-17 lists the pinouts for the DB-25 end, and Table A-18 lists the pinouts for the 68-pin connector end.

Figure A-8 : Asynchronous Serial Interface Breakout Cable Assembly (68-Pin to DB-25)

h4228.gif

Table A-17 : Asynchronous Breakout Cable Pinouts (DB-25)

DB-25 Plug1 Signal Direction
4 RTS --->
20 DTR --->
2 TXD --->
7 TXD GND ---
7 RXD GND ---
3 RXD <---
8 DSR <---
5 CTS <---

1 Any pin not referenced is not connected.

Table A-18 : Asynchronous Cable Pinouts (68-Pin to DB-25)

DB-25 Plug Pin Signal 68-Pin
(J1)
1 4 RTS 2
20 DTR 36
2 TXD 3
7 TXD GND 37
7 RXD GND 4
3 RXD 38
8 DSR 5
5 CTS 39
2 4 RTS 6
20 DTR 40
2 TXD 7
7 TXD GND 41
7 RXD GND 8
3 RXD 42
8 DSR 9
5 CTS 43
3 4 RTS 10
20 DTR 44
2 TXD 11
7 TXD GND 45
7 RXD GND 12
3 RXD 46
8 DSR 13
5 CTS 47
4 4 RTS 14
20 DTR 48
2 TXD 15
7 TXD GND 49
7 RXD GND 16
3 RXD 50
8 DSR 17
5 CTS 51
5 4 RTS 18
20 DTR 52
2 TXD 19
7 TXD GND 53
7 RXD GND 20
3 RXD 54
8 DSR 21
5 CTS 55
6 4 RTS 22
20 DTR 56
2 TXD 23
7 TXD GND 57
7 RXD GND 24
3 RXD 58
8 DSR 25
5 CTS 59
7 4 RTS 26
20 DTR 60
2 TXD 27
7 TXD GND 61
7 RXD GND 28
3 RXD 62
8 DSR 29
5 CTS 63
8 4 RTS 30
20 DTR 64
2 TXD 31
7 TXD GND 65
7 RXD GND 32
3 RXD 66
8 DSR 33
5 CTS 67


RJ-45 Ethernet Pinouts

Table A-19 lists the pinouts for an Ethernet based RJ-45, and Table A-20 lists pinouts for the Ethernet on a model 2505 or model 2507.

Table A-19 : Ethernet 10BaseT (RJ-45) Port Pinouts

Pin1 Description
1 TX+
2 TX--
3 RX+
4 ---
5 ---
6 RX--
7 ---
8 ---

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

Table A-20 : Ethernet 10BaseT Port Pinouts (For 2505 and 2507 Models)

Pin Signal
1 RX+
2 RX--
3 TX+
6 TX--


RJ-45 Adapter Pinouts

Refer to Table A-21 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 Cisco 2500 series products. 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. Cisco 2500 Series products now ship with a rolled cable. Refer to Table A-22 for the cable and adapter configurations that can be used to connect terminals and modems to Cisco 2500 series products. Table A-23 and Table A-24list the suggested adapter pinouts.

Table A-21 : Pins for the RJ-45, M/F DTE, M/F DCE, and MMOD

Cable DB-25 Adapters
RJ-45 Pins M/F DTE Pins1 M/F 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 A-22 : Connection Configuration

Cisco 2500 Port RJ-45 Cable Type DB-25 Adapter End Device
Console/aux Rolled1 FDTE Terminal
Console/aux Straight FDCE Terminal
Console/aux Rolled1 MDCE2 Modem
Console/aux Straight MDTE2 Modem
Aux/console Rolled1 MMOD Modem

1 An octal cable or RJ-45 breakout cable is equivalent to a rolled cable.
2 Modify the adapter by removing DB-25 pin 6 and placing it into the pin 8 position.

Table A-23 lists suggested DB-25 to DB-9 adapter pinouts.

Table A-23 : DB-25 to DB-9 Adapter Pinouts

DB-25 Pin Signal DB-9 Pin
2 TXD 3
3 RXD 2
4 RTS 7
5 CTS 8
6 DSR 6
8 DCD 1
20 DTR 4

Table A-24 lists suggested RJ-45-to-DB-9 adapter pinouts.

Table A-24 : RJ-45 to DB-9 Adapter Pinouts

RJ-45 Pin Signal DB-9 Pin
1 RTS 7
2 DTR 4
3 TXD 3
4 GND 5
5 GND 5
6 RXD 2
7 DSR 6
8 CTS 8

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