Sepura SC21 Series User Manual

Power on Alarm call
If your radio is powered off, press and hold (3 seconds) the Emergency button to power on and
initiate an Alarm call. Any customised Welcome screen is not displayed during power on. If your radio
is customised for PIN entry, you will need to enter your PIN before the alarm call is initiated. It may
take several seconds for the radio to complete its power on process before initiating the Alarm call.
If your radio supports Radio User Assignment (RUA), which authenticates your radio on the
network, you may be prompted to log on to your network before the Alarm call is initiated. Contact
your service provider for information. See Authentication on page76.
User Guide 27

Sepura SC21 Series Specifications

General

IP Rating	IP54
Operating Temperature	-20°C to +55°C
Channel Spacing	25 kHz
Ingress Protection	IP54
Channels	Up to 2000
Frequency Bands	380-430 MHz, 806-870 MHz
Battery Life	Up to 14 hours
RF Power Output	1W
TETRA Air Interface	ETSI EN 300 392-2