COMMUNICATIONS INTERFACE PORT
The PowerSure™ Interactive UPS contains a standard
PIN | ASSIGNMENT DESCRIPTION |
|
1 | Low Battery (open collector) |
|
2 | UPS TxD (typical | |
3 | UPS RxD (typical | |
4 | Remote Shutdown | |
5 | Common |
|
6 | No connection |
|
7 | Low Battery (open emitter) |
|
8 | Utility Fail (open emitter) |
|
9 | Utility Fail (open collector) |
|
| Pin Assignment | Collector to Emitter* |
*Maximum voltage and current on pins 1, 7, 8, 9 is 80V DC; 10.0 mA.
UPS MONITORING
The PowerSure™ Interactive UPS has the capability of being monitored with stand alone computers, network workstations, network servers, or UNIX hosts via the DB- 9 female connector located on the rear of the UPS.
This capability is used in applications requiring the UPS to provide status and power monitoring information to the computer system. For example, during a utility power failure, the information can be used by the computer’s operating system or application program to automatically save information in buffers, to close files, and shut down operations prior to battery capacity depletion.
Monitoring of the UPS via a computer system is easily made with a Liebert SiteNet® 1 shutdown kit (sold separately). Consult your local Liebert representative to determine the correct software kit for your application. The kit includes special purpose cable and shutdown software.
13
