Huawei iMaster NetEco V600R021C10 Device Installation And Commissioning Manual page 43

iMaster NetEco
Device Installation and Commissioning Guide (Data
Center)
Figure 3-22 Connecting cables
(1) PE
(4) Output ports for hydrogen
sensor 1 to hydrogen sensor 4
(7) RS485 port
Table 3-1 Pin mapping for the RS485 port
Pin
Pin 1 (orange-white)
Pin 2 (orange)
Pin 3 (green-white)
Pin 4 (blue)
Pin 5 (blue-white)
Pin 6 (green)
Pin 7 (brown-white)
Pin 8 (brown)
----End
Issue 02 (2021-05-12)
(2) AC IN
(5) Hydrogen concentration
alarm port, fan alarm port, and
hardware fault port (reserved
ports)
Signal
D+
D-
12V+
NC
NC
NC
NC
12V-
Copyright © Huawei Technologies Co., Ltd.
3 Installing Devices
(3) Output ports for fan 1 to
fan 4
(6) RS485+, RS485-, GND, and
idle ports (reserved ports)
Function
RS485+
RS485-
12+ input
-
-
-
-
12- input
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