DB-9 Pinouts
|
Pin Number |
Pin Name |
Description |
|---|---|---|
| 1 | RS232 Receive Data | Receives incoming RS232 communication data. |
| 2 | RS232 Transmit Data | Sends outgoing RS232 communication data. |
| 3 | Normally Open On-Battery Contact | A normally open contact that closes 15 seconds (pulls to Common) after the UPS switches to battery power. |
| 4 | Signal Ground (Common) | The signal ground for all signal pins. |
| 5 | Normally Open Low-Battery-Alarm Contact | A normally open contact that closes (pulls to Common) during a Low Battery Alarm. |
| 6 | Plug and Play Sense for Windows 95 | -- |
| 7 | Remote Shutdown | Connecting this pin to Common for at least 5 seconds, while the UPS is operating on battery, shuts the UPS off after 120 seconds. |
| 8 | Normally Closed On-Battery Contact | A normally closed contact that opens (releases from Common) after the UPS switches to battery power. |
Contacts consist of open collector circuits capable of switching up to +30 VDC, 6 mA resistive load.
Note1: for connection of this UPSes to the computer, using the proprietary closed software Best Power CheckUPS II Suite, is necessary the cable INT-0001 for smart signalling (CheckUPS II Advanced), or the cable INT-0051 for voltage signalling (CheckUPS II Basic).
Note2: for additional information how to connect this UPSes to the computer, using the open source software, please look APCUPSD Voltage Signalling Simple-Custom Cable for Best Power Fortress Rackmount 750 VA, 1050 VA, 1425 VA, 1800 VA, and 2250 VA.
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