UPS5000-E-(30 kVA-120 kVA)-FM
User Manual
2 Overview
Issue 01 (2020-04-27)
Copyright © Huawei Technologies Co., Ltd.
27
Figure 2-12
Signal panel on the control module
(1) Ground terminal
(2) Parallel port 1
(3) BSC port
1
(4) Ready switch
on ECM 1
(5) Indicators for ECM 1
(6) Parallel port 2
(7) BSC port
2
(8) Ready switch
on ECM 2
(9) Indicators for ECM 2
(10) Dry contact card
(11) Dry
contacts
(12) MDU port
(13) RS485 port
(14) Fast Ethernet (FE)
port
(15) COM2
port
(16) COM1 port
(17) Battery temperature
sensor port
(18) Optional card
subrack cover
Ports are protected by a security mechanism.
2.3.5.2 ECM
Appearance
The control module consists of two energy control modules (ECMs) in active/standby mode.
Figure 2-13
ECM
Table 2-3
Ports on the ECM
Silk Screen
Description
PARALLEL
The PARALLEL port transmits parallel signals between racks.
BSC
The BSC port is used in a dual-bus system to synchronize output
frequencies and phases between UPS systems, ensuring that two buses