Emerson Liebert APS Installation Manual Page 21

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Chapter 1 Installation 13
Liebert APM Modular UPS User & Installation Manual
1.7.6 Other Communication Interface
The RS232 port provides serial data and is intended for use by authorized commissioning and service personnel in
UPS commissioning and service.
Liebert APM UPS has facility of internally fitted SNMP and Modbus card options.
1.8 Installation Drawing
Earth
To user safety earth
QF1QF18
QF1QF18
QF1QF18
Distribution
module output
A
B
C
N
PE
Mains/bypass input
BAT+
N
BAT-
Battery input
Power cables
J5
BPS
J10
J8
J9
J7
Bypass module
Transfer board
J6
BCB
External EPO
Input
ENV
EXT
AFC
RS-485
SNMP card
PM150
Figure 1-14 UPS electrical connection diagram
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