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Cisco MGX 8950 Hardware Installation Guide
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
Chapter 1 Product Overview
System Hardware Components
PXM-HD
The PXM-HD is a single-height back card that is installed in the switch. It houses a 6 GB hard disk drive
that contains all switch and network-related information and an OC-3c uplink controller port.
Figure 1-15 shows a close-up of the PXM-HD faceplate.
Note The PXM-HD has a switch that is activated by the ejector lever on the faceplate. The module must be
fully seated in the switch by tightening the two captive screws on the faceplate to ensure that this switch
is activated.
Figure 1-15 PXM-HD Faceplate
1 Enabled LED
• Green—The back card is active.
• Off—The back card is not active.
3 RX and TX OC-3c optic connectors for
PORT
2
2 Signal LED
• Green—The back card is receiving a
signal on the corresponding line.
PXM-HD
ENABLED
84490
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