Cable Specifications

This appendix provides the following pinout information:

Note All pins not listed in the tables in this appendix are not connected.

Ethernet Cable Assembly and Pinouts

This section describes the pinouts for the Ethernet AUI ports and cables.

Figure B-1 shows an Ethernet AUI cable assembly, and Table B-1 lists the cable pinouts.

Figure B-1: Ethernet (AUI) Cable Assembly

**Table B-1: Ethernet (AUI) Cable Pinouts (DB-15) (Continued)**
Pin	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

Token Ring Port Pinouts

Table B-2 lists the Token Ring port pinouts. Use a Token Ring lobe cable (not included) to connect the Token Ring port to a MAU.

**Table B-2: Token Ring Port (DB-9) Pinouts**
9 Pin¹	Signal
1	Receive
3	+5V (600 mA maximum)
5	Transmit
6	Receive
9	Transmit

¹ Pins 2, 4, 7, and 8 are ground.

Console and Auxiliary Port Signals and Pinouts

Your Director comes with a console and auxiliary cable kit, which contains the cable and adapters you need to connect a console (an ASCII terminal or PC running terminal emulation software) or modem to your Director. The console and auxiliary cable kit includes the following items:

RJ-45-to-RJ-45 roll-over cable. (See the next section, "Identifying a Roll-Over Cable," for more information.)
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).

For console connections, proceed to the section "Console Port Signals and Pinouts" later in this appendix; for modem connections, proceed to the section "Auxiliary Port Signals and Pinouts" later in this appendix.

Identifying a Roll-Over Cable

You can identify a roll-over cable by comparing the two modular ends of the cable. Holding the cables 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 B-2.) If your cable came from Cisco Systems, pin 1 will be white on one connector, and pin 8 will be white on the other (a roll-over cable reverses pins 1 and 8, 2 and 7, 3 and 6, and 4 and 5).

Figure B-2: Identifying a Roll-Over Cable

Console Port Signals and Pinouts

Use the RJ-45-to-RJ-45 roll-over 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 B-3 shows how to connect the console port to a PC. Table B-3 lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-9 female DTE adapter (labeled Terminal).

Figure B-3: Connecting the Console Port to a PC

**Table B-3: Console Port Signaling and Cabling Using a DB-9 Adapter**
Console Port (DTE)	RJ-45-to-RJ-45 Roll-Over Cable		RJ-45-to-DB-9 Terminal Adapter	Console Device
Signal	RJ-45 Pin	RJ-45 Pin	DB-9 Pin	Signal
RTS	1¹	8	8	CTS
DTR	2	7	6	DSR
TxD	3	6	2	RxD
GND	4	5	5	GND
GND	5	4	5	GND
RxD	6	3	3	TxD
DSR	7	3	4	DTR
CTS	81	1	7	RTS

¹ Pin 1 is connected internally to pin 8.

Use the RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-25 female DTE adapter (labeled Terminal) to connect the console port to a terminal. Figure B-4 shows how to connect the console port to a terminal. Table B-4 lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-25 female DTE adapter (labeled Terminal).

Figure B-4: Connecting the Console Port to a Terminal

**Table B-4: Console Port Signaling and Cabling Using a DB-25 Adapter**
Console Port (DTE)¹	RJ-45-to-RJ-45 Roll-Over Cable		RJ-45-to-DB-25 Terminal Adapter	Console Device
Signal	RJ-45 Pin	RJ-45 Pin	DB-25 Pin	Signal
RTS	1²	8	5	CTS
DTR	2	7	6	DSR
TxD	3	6	3	RxD
GND	4	5	7	GND
GND	5	4	7	GND
RxD	6	3	2	TxD
DSR	7	3	20	DTR
CTS	81	1	4	RTS

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

Use the RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-25 male DCE adapter (labeled Modem) to connect the auxiliary port to a modem. Figure B-5 shows how to connect the auxiliary port to a modem. Table B-5 lists the pinouts for the asynchronous serial auxiliary port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-25 male DCE adapter (labeled Modem).

Figure B-5: Connecting the Auxiliary Port to a Modem

**Table B-5: Auxiliary Port Signaling and Cabling Using a DB-25 Adapter**
AUX Port (DTE)	RJ-45-to-RJ-45 Roll-Over Cable		RJ-45-to-DB-25 Modem Adapter	Modem
Signal	RJ-45 Pin	RJ-45 Pin	DB-25 Pin	Signal
RTS	1¹	8	4	RTS
DTR	2	7	20	DTR
TxD	3	6	3	TxD
GND	4	5	7	GND
GND	5	4	7	GND
RxD	6	3	2	RxD
DSR	7	3	8	DCD
CTS	81	1	5	CTS

¹ Pin 1 is connected internally to pin 8.

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