The following table describes the pin assignments for the COM_IN and COM_OUT
ports.
Table 4-28 Pin assignment for the COM_IN and COM_OUT ports
Item
Description
Pin
sequence
Pin1
RS485+
Pin2
RS485-
Pin3
12 V (input power, supplying power to the module)
Pin4
RS485+
Pin5
RS485-
Pin6
-
Pin7
-
Pin8
GND
Indicators and Buttons
Table 4-29 UIM20A indicators
Indicator
Status
Description
RUN
Steady
on
A board application is being loaded.
Off
The board is not running.
Blinking
at long
intervals
The ECC800-Pro is successfully registered, and the
software runs properly (blinking at long intervals (0.5
Hz), on for 1s and then off for 1s).
Blinking
at short
intervals
The communication is interrupted or the ECC800-Pro is
unsuccessfully registered (blinking at 2.5 Hz, on for 0.2s
and then off for 0.2s).
Blinking
Blinking at super short intervals for 0.5s and then off for
0.5s; last 10s (blinking at super short intervals: 10 Hz,
on for 0.05s and then off for 0.05s)
ALM
Steady
on
A system fault alarm is raised.
Off
The system is normal.
iMaster NetEco
Device Installation and Commissioning Guide (Data
Center)
4 Connecting Monitoring Cables to Devices
Issue 02 (2021-05-12)
Copyright © Huawei Technologies Co., Ltd.
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