Vertiv Liebert iCOM DP400/500 Installer/User Manual page 132

NOTE: Up is on, down is off on the DIP switch.
Figure 12.17 DIP Switches in 2T Sensor
Terminating the Last Supply Air Sensor on the CANbus Link
The 2T sensor need not be installed in the alphabetic order of their address/sensor letter (although it may be easier for later
maintenance). However, the last sensor in the chain must be terminated. All others must remain unterminated. We also
recommend that you make a record of the sensor numbers along with the name/location of the equipment on which they are
installed.
To terminate the last sensor:
1. Locate the sensor that will be last on the CANbus link.
NOTE: The last sensor on the network will be the sensor with only one CAN cable after all sensors are connected to
the CANbus network.
2. Open the sensor's case by removing the Phillips head screws (typically three) one the rear of the housing to
access the jumper used for terminating.
3. Remove the black jumper from pins 1 and 2, and install it on pins 2 and 3 as shown in Figure 12.18 on the
facing page.
4. Replace the sensor cover. The 2T sensor is terminated in the CANbus link.
5. If installing in an existing CANbus link, remember to unterminate the sensor that was previously last.
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Vertiv™ | Liebert® iCOM™ Installer/User Guide