Installing Cables for T/H Sensors Outside the Cabinet
Context
T/H sensors outside the cabinet are installed to detect the temperatures of cold/hot aisles. They can be flexibly installed on the server cabinet based on onsite situation. It is recommended that the T/H sensors be deployed near heat sources in the hot aisle, or near places that lack cooling capacity in the cold aisle. The T/H sensors outside the cabinet must be near the smart cooling product to sense the temperature of the outlet air, and must be away from the air exhaust vents of other smart cooling products.
Procedure
- Connect one end of a network cable to the unwired port of the T/H sensor on the air return side, and connect the other end to the T/H sensor outside the cabinet. Connect the cables in series based on the actual positions of T/H sensors.Figure 4-86 Cables routed outside the cabinet
- The T/H sensors should be 1.5 m above the ground (33 U).
- Each smart cooling product supports a maximum of ten T/H sensors.
- The RS485 ports at both ends of a T/H sensor (33010516) do not distinguish between the input and output, and they can be connected directly in series.
- Set the DIP switches of T/H sensors. Table 4-13 shows how to set the DIP switches for T/H sensors.Figure 4-87 Position of the DIP switch on a T/H sensorTable 4-13 DIP switch settings on T/H sensors
Location
Display Name
Address
DIP Switch Sequence No.
1
2
3
4
5
6
Air return side
Return air 2 temp/humid
1
ON
OFF
OFF
OFF
OFF
OFF
Cold aisle
Cold aisle 1 temp/humid
11
ON
ON
OFF
ON
OFF
OFF
Cold aisle 2 temp/humid
12
OFF
OFF
ON
ON
OFF
OFF
Cold aisle 3 temp/humid
13
ON
OFF
ON
ON
OFF
OFF
Cold aisle 4 temp/humid
14
OFF
ON
ON
ON
OFF
OFF
Cold aisle 5 temp/humid
15
ON
ON
ON
ON
OFF
OFF
Hot aisle
Hot aisle 1 temp/humid
21
ON
OFF
ON
OFF
ON
OFF
Hot aisle 2 temp/humid
22
OFF
ON
ON
OFF
ON
OFF
Hot aisle 3 temp/humid
23
ON
ON
ON
OFF
ON
OFF
Hot aisle 4 temp/humid
24
OFF
OFF
OFF
ON
ON
OFF
Hot aisle 5 temp/humid
25
ON
OFF
OFF
ON
ON
OFF
After the addresses are set, power on the device, choose on the home screen of the display module, and set the sensors in the aisles corresponding to the addresses to Enable. Otherwise, the sensors will not work.
