Technical Specifications

Designing a Liebert XD Solution
45
3.27 Connecting Liebert XDP and Liebert XD Cooling Modules in a CANbus Network
A Controller Area Network (CAN) is a specialized internal communication network. It allows the
Liebert XDP and the Liebert XD smart modules to communicate without a host computer.
Networking a Liebert XDP with smart modules enables the smart modules to be controlled and
monitored from the Liebert XDP.
The Liebert XD smart modules CANbus is to be networked only to the Liebert XDP that is supplying
coolant to the smart modules.
Figure 42 Liebert XD system with CANbus
3.27.1 CANbus Cables
The Liebert XDP may be connected to smart modules with CANbus cables. The shielded cable
consists of three pairs of twisted wires with a six-pin RJ-12 connector.
Figure 43 CANbus cable wiring
Table 22 CANbus cable part numbers
Length ft (m) Part #
3 (0.9) 300157G10
6 (1.8) 300157G1
10 (3.0) 300157G2
15 (4.6) 300157G11
20 (6.1) 300157G3
30 (9.1) 300157G4
60 (18.3) 300157G5
90 (27.4) 300157G8
120 (36.6) 300157G7
150 (45.7) 300157G8
Remote
Sensor A
Remote Sensor B
Grounding
Wire
Grounding
Wire
1
2
3
4
5
6
1
2
3
4
5
6
Black
Brown
Blue
Violet
Yellow
Green
Pair 1
Pair 2
Pair 3