Cisco ASR 903 Hardware Installation Guide

We recommend that you wait 30 seconds between removal and insertion of an SFP on an interface module.
This time is recommended to allow the transceiver software to initialize and synchronize with the standby
RSP. Changing an SFP more quickly could result in transceiver initialization issues that disable the SFP.
Caution
Connecting a USB Flash Device
To connect a USB flash device to the Cisco ASR 903 Router, insert the memory stick in the USB port labeled
MEM. The Flash memory module can be inserted in only one way, and can be inserted or removed regardless
of whether the router is powered up or not.
The figure below shows the USB port connector on the Cisco ASR 903 Router.
Figure 74: Cisco ASR 903 Router Flash Token Memory Stick
Removing a USB Flash Device
To remove and then replace a USB flash token memory stick from a Cisco ASR 903 Router, follow these
steps:
Step 1
Pull the memory stick from the USB port.
Step 2
To replace a Cisco USB Flash memory stick, simply insert the module into the USB port labeled MEM as shown in the
figure below . The Flash memory module can be inserted in only one way, and can be inserted or removed regardless of
whether the router is powered up or not.
You can insert or remove the memory stick whether the router is powered on or
not.
Note
This completes the USB Flash memory installation procedure.
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Connecting a USB Flash Device

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English