Huawei ECC800 - Page 39

ECC800 Data Center Controller
User Manual (for ECC800-Pro)
3 Device Description
Issue 06 (2020-04-22)
Copyright © Huawei Technologies Co., Ltd.
28
Figure 3-8 Rack environment unit
(1) Ground port
(2) 48 V DC power input
port
(3) POE port
(4) COM1/12V
port
(5) COM2/12V
port
(6) COM3 port
(7) COM4 port
(8) NTC1–3
(9) NTC4–6
(10) AI/DI_1 port
(11) AI/DI_2 port
(12) 12V_1 port
(13) 12V_2 port
(14) BLINK button
(15) Status
indicator
Specifications
Table 3-23 Technical specifications for the rack environment unit
Item
Specifications
Power input

DC input: Terminal, with input voltage of 36–60 V DC

POE input: One POE port that complies with IEEE802.3at.
12 V power
output
Two 12 V DC power outputs with the rated output current of 250 mA
POE port
FE communication with the rate of 10/100M
RS485 serial
port
expansion

Four RS485 ports with the default communications rate of 9600 bit/s

Among the four RS485 ports, two support 12 V DC, 400 mA power
output.

The other two are isolated, with the default communications rate of
9600 bit/s, and do not support power output.
AI/DI input
Two active 12 V DC, 200 mA AI/DI input ports
Temperature
sensor port
Provides two RJ45 ports to connect to six temperature sensors, each RJ45
port connecting to three temperature sensors.
BLINK
button
Provides a BLINK function.