Operating instructions

3-17
I/O Definition
GND-R: Relay Grounding
Common: 12 ~ 24VDC
Default
R1
Summary Alarm
R2
Input Power Fail
R3
Battery Low
R4
UPS in Bypass Mode
R5
Overload
R6
Over Temperature
Input: Remote shutdown or battery test
Tx: Transmit to PC, connect to RS232 pin-2.
Rx: Receive from PC, connect to RS232 pin-3.
GND-C: Ground for configuration, connect to RS232 pin-5.
OFF (Default) ON
SW1
Normally Open Normally Close
SW2
Default Settings Customized Settings
Fig. 3-15 Circuit diagram Relay I/O Card contacts