Juniper MX2010, Hardware Manual

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MX2010 DC Power Supply Module LEDs
Each DC PSM (-48 V and 240 China) faceplate contains four LEDs. These LEDs are described in
Table 40 on page 121 . 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.
Table 40: MX2010 DC Power Supply Module LEDs
Description State Color Label
PSM is functioning normally with no alarms. On Green PWR OK
PSM controller is functioning normally. On Yellow
PSM is not functioning normally or the PSM controller is off. Off –
PSM is not functioning normally or the DC input voltage of one or more
feeds is out of range.
On Red FAULT
PSM is functioning normally or both the DIP switches are set to off. Off –
DC input is within required voltage range and the DIP switch is set to on. On Green INP0
DC input is detected but voltage is out of range. On Yellow
DC input to the PSM is not present. Off –
DC input is within required voltage range and the DIP switch is set to on. On Green INP1
DC input is detected but voltage is out of range. On Yellow
DC input to the PSM is not present. Off –
RELATED DOCUMENTATION
MX2010 Component LEDs on the Craft Interface | 31
MX2010 Power System Description | 95
MX2010 DC Power Supply Module (-48 V) Description | 116
121