Connecting DC Power Cables

The USG6630E, USG6635E come with two DC power module. Each DC power module requires an NEG power cable and an RTN power cable. Connect power cables to both DC power modules.

Context

Before connecting power cables, ensure that the DC power supply in the equipment room meets the input requirements of the USG.

Do not connect or disconnect the power cables when the USG is powered on.

Procedure

Ensure that the PGND cable is adequately grounded.
Connect power cables for the two DC power modules one after the other.
- Note the labels on the DC power cables to avoid misoperations.
- To improve availability, connect two power modules to different power sources.
1. Plug the connector end of the DC power cable to the DC power module.
2. Connect the other end of the DC power cable to the output of the power supply device in the equipment room.
  Figure 1 Connecting DC power cables

Follow-up Procedure

Verify the following after the connection is complete:

The power cables are correctly and firmly connected to the power supply device.
If multiple USGs are deployed, the power cables of each USG are correctly labeled for distinction.