DI and DO Ports
Table 3-77 DI and DO port pin denitions
Pin Deni
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 denitions for HALL current monitoring ports
Pin
Denition 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 (for ECC800-Pro) 3 Device Description
Issue 02 (2020-09-07) Copyright © Huawei Technologies Co., Ltd. 82
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