Cisco Systems ASR 903 manual LED Summary, Fiber-Optic Specifications, RSP LEDs

Chapter 5 Troubleshooting

LED Summary

Table 5-11	Single USB Flash/MEM Port
Pin	Signal Name	Direction	Description
A1	Vcc		+5VDC (500mA)
A2	D-		Data -
A3	D+		Data +
A4	Gnd		Ground

Note USB TYPE-A receptacle used.

Note The USB flash/MEM port +5VDC is output. We provide power for USB flash/MEM, and it operates as a USB host device.

Fiber-Optic Specifications

The specification for optical fiber transmission defines two types of fiber: single-mode and multimode.

Within the single-mode category, three transmission types are defined: short reach, intermediate reach, and long reach. Within the multimode category, only short reach is available. For information about optical SFP modules, see the documentation for the SFP module at

http://www.cisco.com/en/US/partner/products/hw/modules/ps5455/prod_installation_guides_list.html.

LED Summary

The following sections describe the meanings of the LEDs on the Cisco ASR 903 Router.

•RSP LEDs, page 5-8

•Interface Module LEDs, page 5-9

•Power Supply LEDs, page 5-12

•Fan Tray LEDs, page 5-13

•Alarm Conditions, page 5-13

RSP LEDs

Table 5-12summarizes the RSP LEDs.

Note A major alarm condition indicates the failure of a single fan in the fan tray; a critical alarm indicates the failure of multiple fans. In the event that a single fan fails, the

Cisco ASR 903 Router software adjusts the fan speed to prevent excessive heat within the chassis.

Cisco ASR 903 Router Hardware Installation Guide

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