Leds; Mx2020 Ac Power Supply Module Description; Figure 22: Three-Phase Delta Ac Pdm Leds; Table 20: Three-Phase Delta Ac Pdm Leds - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide
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MX2020 AC Power Supply Module Description

46
MX2020 Three-Phase Delta and Wye AC Power Distribution Module LEDs
Figure 22 on page 46 shows the LEDs on the three-phase delta AC PDM faceplate. The
three-phase wye AC PDM has the same LEDs. The LEDs in
the status of the AC PDM. In addition, a PDM failure triggers the red alarm LED on the
craft interface.

Figure 22: Three-Phase Delta AC PDM LEDs

Table 20: Three-Phase Delta AC PDM LEDs

Label Color
Green
—
Green
—
MX2020 Three-Phase Delta AC Power Distribution Module Description on page 42
MX2020 Three-Phase Wye AC Power Distribution Module Description on page 44
Maintaining the MX2020 Power Supply Modules on page 186
MX2020 Component LEDs on the Craft Interface on page 36
Troubleshooting the MX2020 Power Subsystem on page 202
MX2020 AC Power Requirements on page 373
The MX2020 supports a three-phase AC power system. There are two types of
three-phase power systems that can be installed in the router—three-phase delta or
three-phase wye. The PSMs work with a single phase only. Each phase from the each of
the two feeds is distributed among one or two PSMs. This means up to six different
phases can come into the PDM and get distributed among nine AC PSMs. There are a
State Description
On The left AC terminal block is receiving voltage.
Off The left AC terminal block is not receiving voltage.
On The right AC terminal block is receiving voltage.
Off The right AC terminal block is not receiving voltage.
Table 20 on page 46 indicate
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