|
UPS Pin Number |
UPS Pin Name |
Direction |
Computer Pin Number |
Computer Pin Name |
Description |
|---|---|---|---|---|---|
| n/a | Shield | -- | n/a | Shield | Frame/Case Ground |
| 1 | DCD | Connected to Shield | |||
| 8 | CTS | Connected to Shield | |||
| 9 | RI | Connected to Shield | |||
| 4 | DTR | Connected to pin 6 | |||
| 6 | DSR | Connected to pin 4 | |||
| 1 | RS232 Receive Data | <-- | 3 | TxD | TxD Send |
| 2 | RS232 Transmit Data | --> | 2 | RxD | RxD Receive |
| 4 | Signal Ground (Common) | -- | 5 | GND | Ground |
| 6 | Remote Shutdown | <-- | 7 | RTS | Kill UPS Power |
It is authentically known that this type of a UPS cable is completely compatible to all APC Smart-UPS with DB9 serial ports (though about this fact there is no information on an official site of the manufacturer www.apc.com).
UPS (DB9M) IBM PC (DB9F)
----------- -------------
Shield x-------------------------+----x Shield
|----< 1 DCD
|----< 8 CTS
+----< 9 RI
TxD Send 2 <------------------------------< 2 RxD
RxD Receive 1 <------------------------------< 3 TxD
Common 4 <------------------------------< 5 GND
Shutdown 6 <------------------------------< 7 RTS
+----< 4 DTR
|----< 6 DSR
correct
incorrect