MX2020 High-Voltage Universal Power Supply Module LEDs
Each high-voltage second-generation universal (HVAC/HVDC) PSM faceplate contains four LEDs. These LEDs are shown in Figure 1 and Table 1. Eighteen bicolor LEDs labeled 0 through 8 for the bottom nine PSMs, and 9 through 17 for the top 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, and both feeds share load current when present. In addition, a PSM failure triggers the alarm LED on the craft interface.
INP0 (V) AC or DC within range |
INP1 (V) AC or DC within range |
Dip 0 |
Dip 1 |
PSM Switch |
INP0 LED |
INP1 LED |
PWR OK LED |
FAULT LED |
PWR OK |
52V out |
5V out |
|---|---|---|---|---|---|---|---|---|---|---|---|
Yes |
Yes |
1 |
0 |
Off |
Green |
Off |
Blinking amber |
Off |
Off |
Off |
Off |
Yes |
0 |
1 |
0 |
On |
Green |
Off |
Green |
Off |
On |
On |
On |
0 |
Yes |
0 |
1 |
Off |
Off |
Green |
Blinking amber |
Off |
Off |
Off |
Off |
0 |
Yes |
1 |
1 |
On |
Off |
Green |
Green |
Off |
On |
On |
On |
Yes |
Yes |
1 |
1 |
Off |
Green |
Green |
Blinking amber |
Off |
Off |
Off |
Off |
Yes |
Yes |
1 |
1 |
On |
Green |
Green |
Green |
Off |
On |
On |
On |
Yes |
Yes |
0 |
0 |
Off |
Green |
Green |
Blinking amber |
Off |
Off |
Off |
Off |
Yes |
Yes |
0 |
0 |
On |
Green |
Green |
Green |
Off |
On |
On |
On |
Yes |
0 |
0 |
1 |
Off |
Green |
Off |
Blinking amber |
Red |
Off |
On |
Off |
Yes |
0 |
0 |
1 |
On |
Green |
Off |
Green |
Red |
On |
On |
On |
0 |
Yes |
1 |
0 |
Off |
Off |
Green |
Blinking amber |
Red |
Off |
On |
Off |
0 |
Yes |
1 |
0 |
On |
Off |
Green |
Green |
Red |
On |
On |
On |