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COMPUTER INTERFACE PORT
The computer interface port has the following technical characteristics and provides both the RS-232
interface and signals to contacts. The UPS can send power failure and battery failure signals and receive the
shutdown signal.
Sub D 9 female pin (computer interface connector)
S.D. = Input shutdown signal: when the UPS is operating in Battery Mode, apply a positive signal
(+5÷15VDC) between this input (pin 3) and the common input (pin 5) for at least 20sec in order
to shutdown the unit.
B.W. = Contact closed when the UPS is operating in battery mode (max +30Vdc 10mA).
B.L. = Contact closed when the UPS in operating off low batteries (max +30Vdc 10mA).
COM = Common
WARNING: only use the UPS monitoring system provided or systems recommended by the
manufacturer.
1
2345
6
7
8
9
RS 232
COM pin 5
B.W. pin 9
B.L. pin 8
RX/S.D. pin 3
TX pin 2
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