Huawei ECC800 User Manual page 207

ECC800 Data Center Controller
User Manual (for ECC800-Pro)
(1) UIM20A expansion module
Context
The BOM number of T/H sensors is 02311FQG or 02312PBL.
Procedure
Step 1 Set the T/H sensor device address.
Set the T/H sensor device address through the DIP switch on the T/H sensor.
Toggle switches 1–6 are used to set device addresses, toggle switch 7 is reserved, and toggle
switch 8 is used to switch the temperature unit.
Device addresses are set in binary coding format in the range of 1–63. The first bit is the least
significant bit, and the sixth bit is the most significant bit. ON indicates 1, and OFF indicates
0.
Issue 06 (2020-04-22)
Figure 6-57 Wiring diagram for the temperature map function
 Sensors NTC1 to NTC6 are installed in the following positions of the cabinet respectively: upper
part of the front door, middle part of the front door, lower part of the front door, upper part of the
rear door, middle part of the rear door, and lower part of the rear door.

A maximum of eight T/H sensors can be cascaded to each COM port.

A T/H sensor can be connected only to the COM1, COM3, COM5, or COM7 port on the UIM20A
expansion module.
Copyright © Huawei Technologies Co., Ltd.
(2) T/H sensor
6 Feature Description
(3) NTC sensor
196