Liebert Emerson NX UPS System - Manual (Page 41)

Installation Drawings
33
4.0 I
NSTALLATION
D
RAWINGS
Figure 20 Electrical connections
X5
X3
X4
X1
X2 Ext EPO
BCB
Monitor Board
Input
MBC
External Battery
Batt
UPS
Parallel Board
To Customer’s Safety
Earth Earth
A
B
C
N
A
B
C
N
To Critical Load
Main/Bypass Input
Supply
Power
Cables
+ N -
J28-1
J28-2
X3 X7
J25
J30
J26
J21
X3
J13
J4
Gen
BPS
AFC
RS-485
Modem-
SNMP
Ext. Maint.
Ext. Out
J28-3
J28-4
J10-1 J10-2 J10-4 J10-3 J22-2 J22-3 J22-4