Item
Description
Indicator
Green
indicator
Power output indicator
● Steady on: The 12 V DC output is normal.
● Off: No 12 V DC output is provided.
Table 3-10 COM4/CAN port pin definitions
Item
Description
Pin
sequence
Pin 1
RS485+
Pin 2
RS485-
Pin 3
-
Pin 4
RS485+
Pin 5
RS485-
Pin 6
-
Pin 7
CAN_H
Pin 8
CAN_L
The following provides the AIDI_1, AIDI_2 and AIDI_3 ports pin definitions.
NO TE
● Pins 1, 2, 4, and 5 identify sensor types.
● Pin 3 and Pin 8 are power output ports.
● Pin 6 and Pin 7 collect sensor data. Pin 7 can detect current type sensors (4–20 mA). Pin
6 and Pin 7 can detect the output status of passive dry contact type sensors. Pin 3 and
Pin 7 can detect temperature sensors.
Table 3-11 AIDI_1, AIDI_2 and AIDI_3 ports pin definitions
Item
Description
Pin
sequence
Pin 1
Type_1
Pin 2
Type_2
Pin 3
12V DC
Pin 4
Type_3
Pin 5
Type_4
Pin 6
DI-
Pin 7
DI+
ECC800 Data Center Controller
User Manual
3 Device Description
Issue 04 (2021-10-09)
Copyright © Huawei Technologies Co., Ltd.
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