UPS2000-A-(6 kVA-10 kVA)-RTL
User Manual
2 Overview
Issue 07 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
18
Figure 2-4
6 kVA/10 kVA rear view
(1) AC input circuit
breaker
(2) Optional card slot (behind
the cover)
(3) Battery wiring terminal
(behind the cover)
(4) AC input terminal
(behind the cover)
(5) AC output terminal (behind
the cover)
(6) EPO port
(7) Maintenance bypass
status port (MBS)
(8) USB port
a
(protected by a
security mechanism)
(9) Reserved
a: The USB port supports the standard Modbus protocol and connects to a PC through a USB cable so
that you can access the NMS, configure parameters, export data, and upgrade software.
Table 2-2
Port definitions
Port
Status
Function
EPO
NO
Connect an external switch to the EPO port on
the UPS. After you turn on the switch, the
inverter shuts down, and the UPS will not
transfer to bypass mode. Output terminals
completely power off, which meets the EPO
purpose.
MBS
NO
If the UPS is equipped with an external
maintenance bypass switch, the MBS port can
be used to detect the on-off status of the
external maintenance bypass. If the port is
closed, it indicates that the UPS has detected
that the external maintenance bypass switch is
closed. At this time, the UPS will generate a
maintenance bypass switch closed alarm and
the system will transfer to bypass mode.