Communication
To access the front panel communication options, perform the following steps:
1.If the UPS is powered on, prepare your equipment for shutdown.
Press and hold the Output 
Off button until the long beep ceases (approximately three seconds).
The µindicator remains lit indicating Normal mode, load offline.
Switch the input breaker on the power processing unit to the OFF (O) position. Wait until all indicators turn off and then continue to the next step.
2.Switch the PPU input breaker to the ON ( ) position while
pressing the Output 
Off button until the alarm beeps. All indicators begin flashing.
3.Press and hold the Output 
Off button a second time until the alarm beeps again.
A single indicator, corresponding with the current setting, remains flashing.
4.Press the Output 
Off button to scroll through the communication options, top to bottom. Each time you press the button, the UPS beeps and the next indicator flashes.
NOTE If you do not save a selection within two minutes, the setup automatically aborts and switches back to the original configuration.
5. | Press and hold the Output | On button until the alarm beeps to | ||
| select and save a communication option. Failure to release the | |||
| button immediately after the beep will cause the UPS to abort | |||
| the setup. | |||
6. | Press the Output |
| On button again to return the UPS to | |
| ||||
| Normal mode. | |||
NOTE Printer mode selections are the only serial communication modes available from the front panel.
Powerware® 9 Prestige Series User’s Guide (4500/6000 VA) S Rev H www.powerware.com | 61 |