Huawei ECC800 User Manual page 30

ECC800 Data Center Controller
User Manual
There are six AI/DI dry contact inputs (AI/DI_1–6).
definitions.
Table 3-10 AI/DI port pin definitions
Item
Pin sequence
Indicator
There are two DO dry contact outputs (DO_1 and DO_2).
pin definitions.
Table 3-11 DO port pin definitions
Item
Pin sequence
Issue 07 (2020-03-16)
 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.
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Green
indicator
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
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Table 3-10
Description
Type_1
Type_2
12 V DC
Type_3
Type_4
DI-
DI+
GND
Power output indicator
 Steady on: The 12 V DC output is normal.
 Off: No 12 V DC output is provided.
Description
N/A
N/A
12 V DC_OUT
N/A
N/A
DO_NO
DO_COM
GND
3 Device Description
provides the AI/DI port pin
Table 3-11 provides the DO port
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