Table 4 liebert-supplied interconnect wiring, Junction cabinet, Table 4 – Emerson NXL UPS Systems User Manual
Page 35: Liebert-supplied interconnect wiring
Installation Drawings
31
Figure 29 Liebert NXL UPS to Liebert NXL Module Battery Disconnect to wide Liebert NXL Junction
Cabinet
Table 4
Liebert-supplied interconnect wiring
Run
From
To
Conductors
A1
MBD - DC Positive Busbar
Junction Positive Busbar
Positive - Top Feed
A2
MBD - DC Positive Busbar
Junction Positive Busbar
Positive - Bottom Feed
B1
MBD - DC Negative Busbar
Junction Negative Busbar
Negative - Top Feed
B2
MBD - DC Negative Busbar
Junction Negative Busbar
Negative - Bottom Feed
C *
MBD Ground
Junction - Ground
Ground
D1
UPS - DC Positive Busbar
MBD - DC Positive Busbar
Positive - Top Feed
D2
UPS - DC Positive Busbar
MBD - DC Positive Busbar
Positive - Bottom Feed
E1
UPS - DC Negative Busbar
MBD - DC Negative Busbar
Negative - Top Feed
E2
UPS - DC Negative Busbar
MBD - DC Negative Busbar
Negative - Bottom Feed
F *
UPS Ground
MBD Ground
Ground
G
UPS - External Interface Board (EIB)
MBD - Battery Interface Board (BIB)
CAN Control Cables
* For detached units only
A1
A2
B1
B2
A1 A2
B1 B2
C
C
G
D1 D2
E1 E2
F
D2
E2
D1
E1
F
G
Wide Junction Cabinet
Module Battery Disconnect
UPS