Liebert UPStation-GXT interface
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Liebert UPStation-GXT interface

pinout

9 pin D-SUB male
9 pin D-SUB male connector  at the UPS
Pin#
 
Function
 
1
Low Battery (Optocoupler Collector: +V)
 
2
UPS TxD
 
3
UPS RxD
 
4
Remote ShutDown (+5..12VDC, 10 mA max); on battery operation
 
5
Common
 
6
Remote ShutDown (Short to pin 5); any mode operation
 
7
Low Batery (Optocoupler Emitter: -V)
 
8
Utility/Mains Fail (Optocoupler Emitter: -V)
 
9
Utility/Mains Fail (Optocoupler Collector: +V)

Maximum voltage and current on pins 1,7,8,9 shall be 80 VDC, 10.0 mA max

Source:www.pinouts.ru


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