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7
. Using the UPS monitoring software and contact signal
56
7-4-6. Contact Signal circuit inside the UPS
7-4-7. Example of the use of the Contact Signal circuit
●
Example of BU signal output circuit and
the connected circuit
●
Example of BS signal input circuit and the
connected circuit
COM
UPS side
BU
12V1K
TLP627
To port on PC
System side
Connecting cable
(twisted or shielded)
COM
UPS side
GND
System side
Connecting cable
(twisted or shielded)
BS
12V 1K
1.2K
TLP521
From port on PC
C2458
●
Remote ON/OFF circuit
UPS side
remote ON/OFF ( + )
remote ON/OFF ( - )
Example of
remote ON/OFF
Remote ON/OFF (+)
Remote ON/OFF (-)
470
Ω
1 k
Ω
470
Ω
+5 VDC
BU
WB
BS
BL
TR
COM
+5 VDC
+5 VDC
3k
Ω