Installation guide

5-2
Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Chapter 5 Replacing Parts on the IGX
Replacing Front Cards
Replacing Front Cards
This section describes how to perform a hot replacement of a front card. Read the following list before
proceeding with front card replacement:
• The FRM and NTM frond cards come in either a one- or two-piece version. The versions are
interchangeable; nevertheless, make sure that sufficient parts are available.
• Before you replace an NPM with an NPM B version, make sure that the system software supports
the B version. Check the Release Note that comes with this manual to see the required version, or
call the Cisco TAC through Customer Engineering. For more information, refer to the “Obtaining
Technical Assistance” section on page xxiii.
• When a system has only one NPM and you need to remove it, you should first insert the new NPM
and place it in standby so that, when you remove the old NPM, the standby NPM becomes active.
In this way, connections remain intact.
• With one exception, any front card can be replaced without the requirement of first deleting logical
connections. The exception is when the card type is changed (for example, when an HDM replaces
an FRM). In this case, applicable ports are brought down and then deleted before connections are
deleted with the delcon command).
• Use a 5/32-in. Allen wrench to open the front door. Also, front card faceplate screws require a
No. 1 Phillips screwdriver or the Cisco combination tool (PN 218705).
Caution Before you handle a card, attach an ESD-preventive wrist strap. The IGX 8410 node has an attached
ESD-preventive wrist strap at both the front and back of the cabinet. For an IGX 8420 or IGX 8430 node,
you must attach a wrist strap to the cabinet. Handling a card without an electrostatic preventive wrist
strap might result in electrostatic damage to the card.
To replace a card with the power on:
Step 1 If necessary, delete relevant connections with the delcon command.
Step 2 Loosen the two Phillips captive screws in the faceplate.
Step 3 Operate the extractor handles to disconnect the card from the backplane.
Step 4 Pull the card out of the card cage.
Caution Correct alignment between connector pins and receptacles is critical. Before inserting a card, make sure
that all backplane pins are straight. Make sure that the connectors on the card and backplane are aligned.
Insert the card gently.
Step 5 Installing a front card requires that the card be inserted into the card track and pushed firmly, but gently,
into the connector on the back card (or the backplane connector if the card is an NPM).
Step 6 Hold the extractor handles in the open position until they contact the shelf supports, and then rotate them
into the closed position.
Step 7 Tighten the captive screws on the card’s faceplate just enough to secure the card.