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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.

Figure 1: MX2020 High-Voltage Universal (HVAC/HVDC) Power Supply Module LEDs
MX2020 High-Voltage
Universal (HVAC/HVDC) Power Supply Module LEDs

Table 1: MX2020 High-Voltage Universal (HVAC/HVDC) Power Supply Module LEDs

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