Huawei FusionModule500

FusionModule500 Smart Mini Data Center
Product Description (ECC800e)
3 System Architecture
Issue 01 (2017-04-20)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
50
COM Port
Figure 3-24 COM port pins
Table 3-31 COM port pin definitions
Pin
Signal
Description
1
RS485+
Two cascaded RS485
communication ports
2
RS485–
3
NC
4
RS485+
5
RS485–
6
GND
7
NC
8
NC
DI and DO Ports
Table 3-32 DI and DO port pin definitions
Pin
Definition
Signal
Descriptio
n
Status
Description
Initial
Status
Remarks
1
+
Dry contact
input signal

Open: The
dry contact
input is
open.

Closed:
The dry
contact
Open
Dry contact
input and
output signal
2
–