Cisco ASR 903 Installation Guide

The USB Console port +5VDC is input and operates as an USB peripheral device.
Note
USB Flash/MEM Port Pinout
The table below summarizes the USB flash/MEM port pinout.
Table 42: Single USB Flash/MEM Port
DescriptionDirectionSignal
Name
Pin
+5VDC
(500mA)
—VccA1
Data -—D-A2
Data +—D+A3
Ground—GndA4
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.
Note
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 .
Cabling Guidelines
The guidelines are recommended during the installation of fiber cables:
• Avoid the following actions that can stress the cable:
• Pulling or stretching beyond the specified pulling load rate
• Bending it beyond the specified bend radius
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Troubleshooting
USB Flash/MEM Port Pinout

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English