| | |
| | Low Battery (Optocoupler Collector: +V) |
| | UPS TxD |
| | UPS RxD |
| | Remote ShutDown (+5..12VDC, 10 mA max); on battery operation |
| | Common |
| | Remote ShutDown (Short to pin 5); any mode operation |
| | Low Batery (Optocoupler Emitter: -V) |
| | Utility/Mains Fail (Optocoupler Emitter: -V) |
| | Utility/Mains Fail (Optocoupler Collector: +V) |
