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Installing MX2008 AC Power Supply Modules
To install an MX2008 AC PSM:
1. Verify that the power switch on the PSM is in the off (O) position.
2. On the PSM, slide the plastic cover away from the input mode switch to expose the dual DIP switches.
Move the input mode DIP switch to the on or off position for the desired power supply feed configuration
(see
Figure 122 on page
Supply Module Description.
NOTE:
The DIP switches are used only to indicate presence of a feed. If both feeds are
present, power is always drawn from feed 0. Power will be drawn from feed 1 only if feed 0
fails. A PSM failure triggers the alarm LED on the craft interface.
Figure 122: Selecting AC Power System Feed Redundancy
PWR OK FAULT
INP0
INP1
3. Using both hands, grasp the handle and slide the PSM straight into the chassis until the PSM is fully
seated in the chassis slot. Tighten the two captive screws (see
304). For available switch positions on the AC PSM, see MX2000 AC Power
ON
0
1
Figure 123 on page
305).
304
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