Product features©2001 Nokia Mobile Phones. All rights reserved. 14Table 2: GSM terminal light indicatorsPower supplyThe ACW-3 power supply is supplied with the terminal.A backup battery set with its own power supply is also available, see “ Backupbattery set” on page 35.Connect the power supply to the DC jack connector on the left side of the ter-minal. After that, connect the power supply to the AC wall outlet.3 4 5 Description- - - Power is off.Blinking - - Power is on. The terminal isattempting to connect tothe telephone network.On - - In service.On - On Call in progress.On Blinking - The terminal has received acall.- Blinking - Enter the PIN code.Blinking Blinking - Enter the PUK code.On On On The terminal has received anSMS message or voice mail.On On Blinking The terminal has no spacefor new SMS messages. Theoldest message isautomatically deleted.- Blinking Blinking Install the SIM card.Blinking Blinking Blinking An error has occured.Contact service personnel.