HUAWEI VP9660
Quick Start Guide
2 Installing the VP9660
Issue 04 (2013-12-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
18
Table 2-6
Connections between power cables and wiring terminal sockets
Wiring Terminal
Socket
Cable Name
Cable Color
Cable Connector
RTN (+)
Power cable
Black
Cord end terminal
NEG (-)
Power cable
Blue
Step 2
Use a multimeter to measure the resistance between the NEG (-) and RTN (+) wiring terminal
sockets.
If the resistance is greater than or equal to 10 ohms, the power cables are connected properly.
If the resistance is less than 10 ohms, a short circuit is occurring. In this case, locate the cause
and reconnect the power cables to the wiring terminal sockets.
Step 3
Connect the other end of the power cables to the power supply device in the equipment room.
Step 4
Check the output voltage of the power supply device and turn on the power switch of the
device.
Step 5
Check whether the following conditions are met:
The difference between the power supply device's output voltage and the voltage
between the RTN (+) and NEG (-) wiring terminal sockets is less than 2 V.
The power cables are correctly connected to positive and negative terminals of the power
module.
If the preceding conditions are not met, reconnect the power cables.
----End
Connecting a Power Cable to an AC Power Module
The AC power module provides a power socket in the lower left corner of its front panel. The
power socket uses an International Electrotechnical Commission (IEC) C14 inlet and has a
power plug lock.
Step 1
Pull upward on the power plug lock on the left of the power socket, as shown in