Connection; Power Supply; Emulated Phone Line; Trigger Inputs - SECURECOM SC-GPRS Manual

3.

Connection

In order to operate properly, the device must be equipped with a valid SIM card (GPRS data type) and
the external antenna must be connected to the antenna connector. Use the supplied antenna or any
other GSM antenna that suites the needs for installation. The SIM card should be inserted to the card
holder "door" (the moving part of card holder), as shown on picture. The Door must be pushed toward
the PCB until completely "closed", i.e. the two parts of card holder are overlapping, and after that the
card holder should be LOCKED, by pulling the holder "door" toward the terminals (as marked on the
holder). The locking of card holder gives a click sound. If the card was not placed properly as it should
be, the card holder door can not be locked and turning the PCB in horizontal position with card holder
toward the ground will cause the holder to open. In this case, the device will not operate properly, and
may cause the damaging of SIM card. Please be sure that the SIM card is placed properly before
powering up the device.
Warning: The SIM card should never be removed or added while the device is powered up.

3.1. Power supply

SC-GPRS communicators can be powered from USB connection for programming only (downloading of
settings). For normal operation required the external power (connected to terminals +12V and COM).
The device will be functional with any power voltage between 9 and 30 V DC is applied to the terminals.
3.2.

Emulated phone line

The TIP and RING terminals of the SC-GPRS device provides an emulated phone line. Connect these
terminals where the PSTN (regular phone line) is supposed to be connected to the device that will use
this communicator. In case of connecting to alarm panel, use the INCOMMING LINE terminals, (usually
marked with TIP/RING or T/R, or Ti/Ri...).

3.3. Trigger inputs

There are 2 CONTACT inputs on device, marked as Z1 and Z2. These inputs are used to trigger to send a
specified Contact ID code to the monitoring station. These inputs are triggered when connected to the
COM, i.e. to the supply negative line. When connecting the device to an alarm panel, if the power is
supplied from alarm panel (connected to its AUX terminals) these inputs can be directly connected to
PGM outputs of alarm panel, that are "open collector" type, since when activated, these outputs
provide a shortcut to the panel ground. With such connection, no other wiring is required. If the PGM is
RELAY type (two connection points), than one pole of the output relay must be connected to the same
place with the communicator COM terminal, and the other to Z1 or Z2, in balance with programming.
SC-GPRS 5 EN
Alarm Monitoring Communicator v1.3