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GL4 v1.13 EN
Installation
The GL4 is a line emulator that simulates a standard telephone line, it can be used together with all
SafeLine telephones or any other PSTN (Public Switched Telephone Network) telephone. Easy to install
and no programming needed, makes it suitable for both temporary and permanent installation.
INTRODUCTION
SIM card holder
Status LEDs
Push button
SMA
contact for
antenna
Power LED
HINT!
GL4 can be used with a prepaid cash-card or a standard subscription SIM card.
GL4 can supply up to four SafeLine MX2 with emergency power for one hour.
COMPONENTS AND WIRING
Telephone line out
Telephone line out RJ12
Telephone line out
Power 12V out
Power 24-30V in
Power 0V out
Power 24-30V in
Battery terminal
Holder for battery
If the push button on the unit is pressed for 3 sec the
GSM fi eld intensity will be displayed for 5 sec. Best
fi eld intensity is when all 4 LED’s are lit.
