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104
Figure 43: Selecting Input Feed on the DC Power Supply Module (240 V China)
MX2008 DC Power Supply Module LEDs
Each DC PSM (-48 V and 240 China) faceplate contains four LEDs. These LEDs are described in
Table 39 on page
105. Nine bicolor LEDs, labeled 0 through 8 for the nine PSMs, are located in the center
of the craft interface.
The primary input of the PSM is a dual redundant feed, INP0 and INP1. Both feeds are active during
operation, but both feeds might or might not be providing current. In addition, a PSM failure triggers the
alarm LED on the craft interface.
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