Cisco Systems ASR 903 Troubleshooting, BITS Port Pinout, Pinouts, page LED Summary, page

C H A P T E R 5

Troubleshooting

The following sections provide information for troubleshooting problems on the Cisco ASR 903 Router.

•Pinouts, page 5-1

•LED Summary, page 5-7

Pinouts

The following sections describe the pinouts for the Cisco ASR 903 Router interfaces:

•BITS Port Pinout, page 5-1

•GPS Port Pinout, page 5-2

•Time of Day Port Pinout, page 5-2

•Alarm Port Pinout, page 5-3

•Console/Aux RJ45 RS232 Serial Port Pinout, page 5-3

•T1/E1 Port Pinout, page 5-4

•Management Ethernet Port Pinout, page 5-5

•USB Console Port Pinout, page 5-6

•Fiber-Optic Specifications, page 5-6

BITS Port Pinout

Table 5-1summarizes the BITS port pinout.

		Table 5-1		BITS Port Pinout
		Pin	Signal Name		Direction	Description
1			RX Ring		Input	Receive Ring
2			RX Tip		Input	Receive Tip
3						Not used
4			TX Ring		Output	TX Ring
5			TX Tip		Output	TX Tip
						Cisco ASR 903 Router Hardware Installation Guide
	OL-25178-04						5-1