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To insert wires into the terminal block that serves three PSMs:
a. Insert the grounding wire into the grounding point labeled GND.
b. Insert the wire labeled L1 into the input terminal labeled A2.
c. Insert the wire labeled L2 into the input terminal labeled B2.
d. Insert the wire labeled L3 into the input terminal labeled C2.
e. Insert the wire labeled N into the input terminal labeled N2.
NOTE:
The terminal connections have either slotted screws or hex screws. Use a 1/4-in.
slotted screwdriver for the slotted screws. Use a 5/32-in. (4 mm) Allen wrench for the 5/16-in.
hex screws.
WARNING:
mis-wired PDMs, before reinstalling the metal cover to the wiring compartment
apply AC voltage to the PDM (with disengaged PSM) to make sure that two LEDs
on the PDM are lit green and that the AC voltage between AC terminal blocks
A1-N1, B1-N1, C1-N1, A2-N2, B2-N2, and C2-N2 for three-phase wye PDM is
not more than 264 VAC when measured with a DVM. Then turn off the AC breaker
de-energizing the PDM and install the metal cover and engage all AC PSMs.
NOTE:
Three-phase wye AC wire assembly kits can be purchased from Juniper Networks.
Table 104: Supported Three-Phase Wye AC Wire Gauge
Wire Gauge
5 x 10-AWG or equivalent
NOTE:
We recommend that you use the proper gauge wire in order for the cable clamps to
hold the AC cables. Using smaller gauge wiring will result in the cable clamps not tightening
properly.
To protect power supplies from input voltage that may be caused by
Description
5 conductor wires, each wire is 10-AWG
302
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