Emerson Liebert iCOM Manual De Usuario

The last 2T sensor on the network, which can be identified by only having one CAN cable plugged into 

it, must be terminated. All other 2T sensors on the network must remain unterminated. The following 

pictures show the location of the jumper that determines if the 2T sensor is terminated.
To terminate a 2T sensor:
1. Open the sensor’s case by removing the three screws that hold it together.
2. Pull the black jumper off the circuit board from Pins 1 and 2 (see Figure 73).
3. Install the jumper on Pins 2 and 3.
4. Reassemble the sensor housing.

Both temperature sensors attached to a 2T sensor housing are to be installed on the same rack. The 

sensor can be attached to the inside or outside of the rack's front door.

• One temperature sensor is to be attached near the top of the rack's front door by using a cable tie 

to secure the wire to the perforation (approx. 12 inches [305mm] from the top). Do not wrap a 

cable tie around the actual sensor on the end of the wire. This sensor will monitor for hot air 

wrapping over the top of the rack from the hot aisle.

• The other temperature sensor is to be attached to the rack’s front door, centered in front of the 

heat-generating equipment that will be drawing in air.

• If the rack is completely filled with equipment, attach the sensor to the middle of the door as 

determined by both width and height. 

• If the rack is partially filled with equipment, locate the sensor in the center of the equipment on 

the front door.

• Do  not:

• Install a sensor in the hot aisle.
• Leave a sensor coiled on top of or inside the rack.

• With the temperature sensors in place, neatly route the wires up the rack door and into the rack 

using the supplied cable ties. Be sure to leave an appropriate amount of slack in the cable to allow 

the rack door to open and close without binding or pinching the wires.

• Affix the 2T sensor housing to the rack using the supplied hook-and-loop fastener. It is 

recommended that the housing be installed in an easily accessible space with the sensor number 

label visible in case the housing needs accessed at a later time.

Repeat this process until all sensors have been installed.

Unterminated

Terminated