Intelligent Slot
True Online 1-3k UPS User Manual
21
Annex A. Intelligent Slot
There are two types of intelligent slot for option: DB9, phoenix terminator.
Max output current for intelligent slot is 1A.
The functions of intelligent slot are listed as fig.7:
2 6 1
7
8
4
9
3
5
Fig.7 User wiring diagram of intelligent slot
Description of intelligent slot:
Pin NO.
Function
Description
1
UPS fail
Pin1 to pin5 is NO
（
Normally Open
）
if something is failure in
UPS. If not, NC
（
Normally Close
）
2
General alarm
Pin2 to pin5 is NO if something is abnormal. If not, NC
3
GND
External power supply GND
4
Remote shutdown
UPS shutdowns rectifier and inverter if utility is normal. UPS
shutdowns completely if in battery mode. Close switch to
activate.
5
Power supply
External power supply.12VDC~24VDC, Common
connection.
6
Bypass mode
Pin6 to pin5 is NC if UPS works in bypass mode. If not, NO.
7
Battery low
Pin7 to pin5 is NO if battery voltage is low. If not, NC.
8
Normal mode
Pin8 to pin5 is NC if UPS works in normal mode. If not, NO.
9
Utility fail
Pin9 to pin5 is NO if utility is failure. If not, NC.
