Computer Interface Port - Riello UPS 40 Manual De Usuario

COMPUTER INTERFACE PORT

The computer interface port has the following technical characteristics: it provides both the RS-232 interface
and contact type signals. The UPS can send power failure and battery failure signals and receive the
shutdown signal.
RS 232
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.
(only for 40 Plus – 55 Plus – 65 Plus models)
6
7
2
1
Sub D 9-pin female (computer interface) connector
9
8
3 4 5
29
TX pin 2
RX/SD pin 3
B.L. pin 8
B.W. pin 9
COM pin 5