Juniper MX2020 Hardware Manual page 711

Temperature
DC Input
DC Output
Hours Used
PSM 17 status:
State
Temperature
DC Input
DC Output
Hours Used
NOTE: If two input sources are grounded at the positive terminal (i.e. -240 V DC source)
and if both positive input wiring are connected to the PDM, the PSM reports both inputs
to be active and reports the higher of the two -240V DC input source. This is the case
even if one negative input source is switched off through a breaker.
NOTE: For midpoint impedance grounded source, the CLI display of the input voltage is
inaccurate for the input source with lower input voltage. For example, if one source is
+/-120V, and the other source is +/-125V, the CLI input voltage display is 250 V for one
input, and is 245 V (should be 240 V) for the other.
8. If a red alarm condition occurs, issue the show chassis alarms command to determine the source of
the problem.
9. If all PSMs have failed, the system temperature might have exceeded the threshold, causing the system
to shut down.
OK
Feed Voltage(V)
INP0 240.00
INP1 0.00
Voltage(V) Current(A)
52.25 1.50
2664
Online
OK
Feed Voltage(V)
INP0 240.00
INP1 0.00
Voltage(V) Current(A)
52.50 2.00
2736
Current(A) Power(W)
0.50 120.00
0.00 0.00
Power(W) Load(%)
78.38 3.13
Current(A) Power(W)
0.60 144.00
0.00 0.00
Power(W) Load(%)
105.00 4.20
698