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| Liebert® EXL™ 625-1100kVA Installation Manual | Rev. 3 | 02/17 19
2.5.2 Multi-Module Communication
Paralleling cables that connect the module to other modules in the 1+N system are connected via Terminals J1-
J6 customer connections on the control drawer. See Figure 8.
Figure 8 UPS MMS/1+N connectivity
Table 4 UPS control contacts to Battery Interface Boards
Item
Terminal
Block
Pin
Connects to
(Description of
External Item)
Maximum
Voltage
Maximum
Current
Wire
Range
Maximum
Length
Battery Cabinet
Communication
TB1154
1CAN +24V
24VDC 2A 18AWG
1000ft
(305m)
2CAN Common
3CANbus High
4CANbus Low
1. To prevent signal interference, low voltage (<48V) and low current (5A) cable groups should be run in separate grounded conduit from
high voltage or high current cable groups.
2. All external wire furnished by others.
3. All wiring must be in accordance with national and local electrical codes.
4. The maximum length must take into account all battery communications connections in the system.
Table 5 UPS control contacts to Remote Status Panel
Item
Terminal
Block
Pin
Connects To
(Description of
External Item)
Maximum
Voltage
Maximum
Current
Wire
Range
Maximum
Length
Remote Status Panel
TB1
1CAN +24V
24VDC 150mA 18AWG
1000ft
(305m)
2CAN Common
TB1154
3CANbus High
4CANbus Low
1. To prevent signal interference, low voltage (<48V) and low current (5A) cable groups should be run in separate grounded conduit from
high voltage or high current cable groups.
2. All external wire furnished by others.
3. All wiring must be in accordance with national and local electrical codes.
Reserved
for LBS
Reserved for
MMS/1+N
J1
J9
J8
J7
J6
J5
J4
J3
J2
J1
J9
J8
J7
J6
J5
J4
J3
J2
UPS 1 UPS 2 UPS n
Cat 6 Cable
NC
NC
J1
J9
J8
J7
J6
J5
J4
J3
J2
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