Huawei SmartDC V100R021C10 User Manual page 143
Data center controller
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ECC800 Data Center Controller
User Manual
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Issue 04 (2021-10-09)
NO TE
– Typical intelligent devices supported in this scenario are the rPDU-MPDU, rPDU-
PN, rPDU, PDU2000-M(C), PDU2000-M(H), smart U space manager, cabinet
electronic lock, fingerprint lock, and T/H sensor.
– Each port on the UIM does not support cascading.
– The UIM must be installed in the first cabinet, and the intelligent devices in the
following three cabinets need to be connected to the first cabinet.
– If the actual number of IT cabinets is not an integral multiple of 4, connect cables
according to the rules. Idle COM ports on the UIM can be reserved.
– One UIM can connect to only one type of intelligent devices.
Table 6-3 Cable connection mode in the UIM one-to-four scenario
COM Port
COM1
Connected
Cabinet 1
Cabinet
COM Port
COM2
Connected
Cabinet 1
Cabinet
Temperature map scenario
In the scenario where T/H sensors are connected, 32 T/H sensors are
connected to one UIM.
NO TE
– Each COM port allows a maximum of eight T/H sensors to be cascaded.
– The addresses of the T/H sensors connected to the same COM port must be
different. Addresses 1 to 8 are supported. The addresses of T/H sensors connected
to different COM ports can be the same. In actual configuration, bind sensors to
the corresponding cabinets in sequence.
– Each cabinet can connect to only one T/H sensor, a T/H sensor is automatically
bound to the cabinet after its DIP switch is set. The LCD of the T/H sensor displays
the DIP switch address.
– One UIM connects to 32 T/H sensors. If the smart module connects to more than
32 IT cabinets, two UIMs are required for expansion. Each UIM must be installed in
the first cabinet of the corresponding IT cabinets, and the cable connection
principles remain unchanged.
– In this scenario, a UIM is not bound to the IT cabinet.
– Only the T/H sensor inside the cabinet can be connected to the UIM.
Table 6-4 Cable connection mode in a temperature map scenario
COM Port
COM1
Connected
T/H sensor
Device
group
COM Port
COM2
Copyright © Huawei Technologies Co., Ltd.
COM3
COM5
Cabinet 2
Cabinet 3
COM4
COM6
Cabinet 2
Cabinet 3
COM3
COM5
T/H sensor
T/H sensor
group
group
COM4
COM6
6 Feature Description
COM7
Cabinet 4
COM8
Cabinet 4
COM7
T/H sensor
group
COM8
131
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