Chapter 2 Description
The PSM I/O module provides external connectivity (physical termination) on behalf of a PSM module. The PSM I/O module normally connects to the PSM module across the midplane in the same slot position. If a PSM module fails, the I/O module can be switched (controlled by the backup PSM module) to route its midplane connections to the backup PSM module. The PSM I/O module provides the following external connectors:
Cisco MGX 8240 Hardware User’s Guide
Release 3.0, Part Number
