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Cisco ASR 903 Router Hardware Installation Guide
OL-25178-05
Chapter3 Installing the Cisco ASR 903 Router
RSP Installation
Step7 Verify that the captive installation screws are tightened on all of the modules installed in the chassis.
This step ensures that the EMI gaskets on all the modules are fully compressed in order to maximize the
opening space for the new or replacement module.
Note If the captive installation screws are loose, the EMI gaskets on the installed modules will push
adjacent modules toward the open slot, which reduces the size of the opening and makes it
difficult to install the new module.
Note Blank module filler plates (Cisco part number A900-RSPA-BLANK) should be installed in any empty
chassis slots to keep dust out of the chassis and to maintain consistent airflow through the chassis.
Note When installing the cabling to an RSP, we recommend that you leave a service loop of extra cabling
sufficient to allow for fan tray removal.
Removing an RSP Module
Before you remove an RSP from the router, you should save the current configuration using the write
{host file | network | terminal} command. This saves you time when bringing the module back online.
If the module is running Cisco IOS software, save the current running configuration by entering the copy
running-config startup-config command.
Warning
Hazardous voltage or energy is present on the backplane when the system is operating. Use caution
when servicing.
Statement 1034
Warning
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into
beams or view directly with optical instruments.
Statement 1051
To remove an RSP module, perform the following steps:
Step1 Disconnect any cables attached to the ports on the module.
Step2 Verify that the captive installation screws on all the modules in the chassis are tight. This step ensures
that the space created by the removed module is maintained.
Note If the captive installation screws are loose, the EMI gaskets on the installed modules will push
the modules toward the open slot, which in turn reduces the size of the opening and makes it
difficult to remove the module.
Step3 Loosen the two captive installation screws on the module you plan to remove from the chassis.
Step4 Place your thumbs on the ejector levers (see Figure3-16) and simultaneously rotate the ejector levers
outward to unseat the module from the backplane connector.