Electrical installation and pulse output – Connection diagram

HL = Hardware lock key connection
V =  Push button for verification mode

Pulse wire connection

The pulse output can be configured as volume, alarm or call-up. The output can be connected as positive or negative logic. R = pull up/down is selected in relation to the Vx power supply and with a max. current I of 50 mA.

Use shielded cable to avoid EMC problems. Make sure the shield is correctly mounted under the cable clamp (no pig tail).

Electrical installation of GSM/GPRS module