Item
Description
Pin6
D-
Pin7
D+
Pin8
GND
The following table describes the pin assignments for the COM_IN and COM_OUT
ports.
Table 3-20 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 3-21 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).
ECC800 Data Center Controller
User Manual (for ECC800-Pro)
3 Device Description
Issue 02 (2020-09-07)
Copyright © Huawei Technologies Co., Ltd.
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