Huawei FusionDC1000A Manual page 49

FusionDC1000A Prefabricated All-in-One Data
Center
Product Description (IT Scenario)
Port
EPO
Figure 4-17 COM pins
Table 4-13 COM pin definition
Pin
1
2
3
4
5
6
7
8
Issue 01 (2021-04-20)
Silkscreen Description
NO If the normally open (NO) port is connected to
the EPO_12V port, emergency power-off (EPO) is
12V
triggered.
NC If the normally closed (NC) port is disconnected
from the EPO_12V port, EPO is triggered.
12V
Description
RS485+
RS485-
-
RS485+
RS485-
GND
CANH0
CANL0
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4 Power Supply and Distribution System
42