Cisco Systems Cisco uBR10012 manual Fast Ethernet Port Cables and Pinouts

Appendix B Cable Specifications

Fast Ethernet Port Cables and Pinouts

Table B-1 Console Port Signaling and Cabling Using a DB-9 Adapter

			RJ-45-to-DB-9
Console Port (DTE)	RJ-45-to-RJ-45 Rollover Cable		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	2	4	DTR
CTS	81	1	7	RTS

1. Pin 1 is connected internally to pin 8.

Auxiliary Port Cables and Pinouts

Use the RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-25 male DCE adapter (labeled MODEM) to connect the auxiliary port to a modem. Table B-2lists the signals and 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 B-2 Auxiliary Port Signaling

			RJ-45-to-DB-25
AUX Port (DTE)	RJ-45-to-RJ-45 Rollover Cable		Modem Adapter	Modem (DCE)
Signal	RJ-45 Pin	RJ-45 Pin	DB-25 Pin	Signal
RTS	1	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	2	8	DCD
CTS	8	1	5	CTS

Fast Ethernet Port Cables and Pinouts

The 10Base-T/100Base-TX Fast Ethernet ports support IEEE 802.3 and IEEE 802.3u specifications for 10-Mbps and 100-Mbps transmission over unshielded twisted-pair (UTP) cables. Each Fast Ethernet port on the router has an RJ-45 connector to attach to Category 3 or Category 5 UTP cables.

•Use a Category 3 UTP crossover cable when connecting 10Base-T port to a hub.

Cisco uBR10012 Universal Broadband Router Hardware Installation Guide

B-4 OL-18259-01