DI and DO Ports
Table 3-77 DI and DO port pin definitions
Pin
Defini
tion
Signal
Descriptio
n
Status Description
Initial
Status
Descriptio
n
1
+
Dry
contact
input
signal
● Open: The dry
contact input is
open.
● Closed: The dry
contact input is
closed.
Open
Dry contact
input and
output
signals
2
–
3
NO
Dry
contact
output
signal
● Open: The dry
contact output is
open.
● Closed: The dry
contact output is
closed.
Open
4
COM
HALL Current Monitoring Port
Figure 3-51 HALL current monitoring port pins
Table 3-78 Pin definitions for HALL current monitoring ports
Pin
Definition
Description
1
+12V
Detect the charge and
discharge currents of
four battery strings or
eight battery routes.
2
–12V
3
AI
4
GND
ECC800 Data Center Controller
User Manual
3 Device Description
Issue 04 (2021-10-09)
Copyright © Huawei Technologies Co., Ltd.
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