Installation guide

3-3
Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Chapter 3 Installing the IGX
Preparing the Cards
Many card sets support Y-cable redundancy. This feature requires an extra set of cards and a Y-cable.
A set of commands exists to specify, delete, and display Y-cable redundancy. For instructions on setting
up Y-cable redundancy, refer to the setup section for the specific card set.
Note Frame Relay module (FRM) and network trunk module (NTM) front cards exist in one and two-piece
versions. The two-piece card uses an ACM1. Refer to the Cisco IGX 8400 Series Provisioning Guide for
details.
A Cisco IGX node can support a configuration of up to 32 trunks.
Caution Connector pins must align with receptacles. Before card insertion, make sure that pins are straight and
that card connectors and the backplane align. Insert the card gently. It might be necessary to push the
edge of the card slightly to one side for alignment. (This might require removing cards.)
The locations for the NPMs and SCMs in a Cisco IGX:
• Nonredundant:
– NPM in front slot number 1
– SCM in back slot number 1 behind NPM front slot number 1
• Redundant:
– NPMs in front slot numbers 1 and 2
– SCM in back slot number 1 behind NPM front slot number 1
Note Opening the door requires a 5/32-in. Allen wrench. Cisco provides this in a combination tool (part
number 218705).
Caution When handling the cards, wear a wrist strap to prevent damage to the cards from electrostatic discharge.
The IGX 8410 cabinet has wrist strap attached at both the front and the back.