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Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001
Chapter 2 Module and Service Descriptions
Processor Switching Module
Figure 2-1 PXM1 Front Card
PXM1 User Interface Back Cards
The PXM1 User Interface (PXM1-UI) back card provides ports for communication and control. This
card is also used to connect the system to an external clocking source. Install this card in the upper half
of the back of the PXM1. See the “User Interface Access Ports” section on page 5-2 for more information
on the PXM1 back card ports.
There are two options for the PXM1 User Interface back card:
PXM1-UI (standard)
The PXM1-UI back card shown in Figure 2-2 provides:
• One RJ-45/48 for external T1 or E1 clock input
• One BNC connector for E1 clock input
• One DB-15 female connector for alarm interface
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