Huawei FusionModule5000 Product Description page 52

FusionModule5000 Smart Modular Data Center
Product Description (ECC800)
Table 3-19 COM port pin definitions
Pin
1
2
3
4
5
6
7
8
DI and DO Ports
Table 3-20 DI and DO port pin definitions
Pin
1
2
3
4
Signal
RS485+
RS485–
NC
RS485+
RS485–
GND
NC
NC
Signal
Definition
Description
+ Dry contact
input signal
–
NO Dry contract
output signal
COM
Description
Two cascaded RS485
communication ports
Status Description
⚫ Open: The dry
contact input is
open.
⚫ Closed: The dry
contact input is
closed.
⚫ Open: The dry
contact output is
open.
⚫
Closed: The dry
contact output is
closed.
Initial
Remarks
Status
Open Dry contact
input and
output signal
Open
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