Technical data

LED Indicators
14-Slot Shelf
Chapter 2
102
Troubleshooting the Power Entry Module
TABLE REF HERE
0.1 Power input 2 behind the fuse
present
-48 V present = 0
-48 V absent = 1 (3.3V)
0.2 Power input 1 at Backplane
connector present
-48 V present = 0
-48 V absent = 1 (3.3V)
0.3 Power input 1 behind the fuse
present.
-48 V present = 0
-48 V absent = 1 (3.3V)
0.4 N/C Pulled High
0.5 N/C Pulled High
0.6 Power input 4 Backplane connector
present
-48 V present = 0
-48 V absent = 1 (3.3V)
0.7 Power input 4 behind the fuse
present
-48 V present = 0
-48 V absent = 1 (3.3V)
1.0 Power input 3 Backplane connector
present
-48 V present = 0
-48 V absent = 1 (3.3V)
1.1 Power input 3 behind the fuse
present
-48 V present = 0
-48 V absent = 1 (3.3V)
1.2 N/C Pulled High
1.3 Green LED 1 = On
1.4 Push-button switch 1 = Out, 0 = Pushed
1.5 Red LED 1 = On
1.6 N/C Pulled High
1.7 Blue LED 1 = On
Table 2-18 Power Entry Modules LED Indicators
Hot Swap
(Blue)
PEM
Alarm
(Red)
PEM OK
(Green
Tip
- - Green Normal
Blue Red Green 1
Table 2-17 PEM PCA Pin Assignments (Continued)
PCA9555 I/O
Pin
Function State