Figure 134: Removing A Three-Phase Wye Ac Power Distribution Module - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide
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Disconnect the AC power cord from the AC PDM.
14.
Loosen the two captive screws on the locking levers of the PDM faceplate completely.
15.
Pull the locking levers on either side of the faceplate up to unseat the PDM.
16.
Grasp the levers on the PDM faceplate and pull firmly. Slide if halfway out of the
17.
chassis (see Figure 134 on page
CAUTION: Each three-phase delta AC PDM weighs approximately 8.0 lb
(3.62 kg). Be prepared to support the full weight of the PDM as you remove
it from the router.
Place one hand underneath the PDM to support it and slide it completely out of the
18.
chassis .

Figure 134: Removing a Three-Phase Wye AC Power Distribution Module

NOTE: Each PDM slot not occupied by a AC PDM must be covered by a PDM
blank panel.
Installing an MX2020 Three-Phase Wye AC Power Distribution Module
Each three-phase wye AC PDM weighs approximately 8.0 lb (3.62 kg). To install a
three-phase wye AC PDM:
WARNING: Before performing AC power procedures, ensure that power is
removed from the AC circuit. To ensure that all power is off, locate the circuit
breaker on the panel board that services the AC circuit, switch the circuit
breaker to the off position, and tape the switch handle of the circuit breaker
in the off position.
292).
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