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Communications
(continued)
RS-485 Ports
These ports connect multiple UPS power modules in a parallel connection.
UPS Parallel Communication Ports
These ports allow multiple UPS power modules to communicate while in a parallel configuration.
T
X485+
T
X485-
R
X485+
R
X485-
RS-485 Port
RS-485 Port
TERMINAL RESISTOR FOR RS-48
5
Normally Closed
When using RS-485 for more than two uni
ts,
SWQ1 must be "ON" in at least one
and "OFF" in the other.
PIN1: RS-485 Transmi
t+
PIN2: RS-485 Transmi
t-
PIN3: RS-485 Receive
+
PIN4: RS-485 Receive-
S
ync Bus
B
P ON
P
UPS
D
ata
R
eserve
M
Bs_ON
PARALLEL
PARALLEL
UPS Parallel Communication Po
rt
UPS Parallel Communication Po
rt