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ETP4830-A1 Embedded Power
User Manual
4 Installation
Issue 10 (2017-08-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
24
4.3 Installing Cables
Ensure that the upstream AC input circuit breaker is OFF, and attach warning labels such
as "Do not operate."
Before installing cables, switch all the circuit breakers to OFF and remove the fuses that
need to connect to cables.
4.3.1 Connecting the Ground Cable
Figure 4-4
shows how to connect the ground cable (an M4 OT terminal is used for the cable).
Figure 4-4
Connecting the ground cable
(1) Ground bar
4.3.2 (Optional) Installing Dry Contact Signal Cables
Procedure
Step 1
Press the contact plate using a flat-head screwdriver to flip the metal spring inside each dry
contact.
Step 2
Connect the signal cables to the corresponding dry contacts.
Step 3
Remove the flat-head screwdriver and check that the signal cables are connected securely.