H3C Technologies H3C S7500E Series Switches - Manual (Page 45)

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Figure 29 Connecting the PSR650-D
Connecting the PSR1400-D
CAUTION:
When connecting the DC power cord to the DC wiring terminals, make sure the – end of the circuit breaker
at the power input end is off.
To connect the PSR1400-D power cord:
1. Loosen the captive screws on the protection cover with a Phillips screwdriver and remove the
protection cover. There are two flat washers, one spring washer, and one M6 fastening nut from
inside to outside on each wiring terminal.
2. Loosen the captive nuts on four wiring terminals with an M6 socket wrench, and remove the
captive nut, spring washer, and one flat washer in turn from each wiring terminal.
3. Connect the end of the blue DC power cord marked with – to the negative terminal (–) on the
power module.
4. Connect the end of the black DC power cord marked with + to the RTN (+) terminals on the power
module.
5. Put the flat washer and spring washer on the wiring terminal in turn and screw up the captive nut
with the M6 socket wrench. Repeat this step for the other three terminals.
6. Put the protection cover on the wiring terminals and faster the captive screws.
7. Connect the other ends of the DC power cords to power source.
a. Connect the blue end to the negative terminal (–48V) on the power source.
b. Connect the black end to the positive terminal (RTN) on the power source.