Huawei FusionModule500 Product Description page 56

FusionModule500 Smart Mini Data Center
Product Description (ECC800e)
COM Port
Figure 3-25 COM port pins
Table 3-30 COM port pin definitions
Pin
1
2
3
4
5
6
7
8
DI and DO Ports
Table 3-31 DI and DO port pin definitions
Pin Definition
1 +
–
2
3 NO
Issue 05 (2019-11-22)
Signal
RS485+
RS485–
NC
RS485+
RS485–
GND
NC
NC
Signal Status Description
Description
Dry contact input 
signal


Dry contract
Copyright © Huawei Technologies Co., Ltd.
Open: The dry
contact input is open.
Closed: The dry
contact input is
closed.
Open: The dry
3 System Architecture
Description
Two cascaded RS485
communication ports
Initial Remarks
Status
Open Dry contact
input and output
signal
Open
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