Installation Manual & User Instructions
For
MultiCom 500
Multi resident GSM Intercom System
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Keypad / onscreen programming
Programming engineering features
Contents
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1. Introduction
This GSM intercom uses the cellular networks to dial pre-programmed telephone numbers
when an apartment number is called or family name is selected from the directory.
The 500 model will dial 3 numbers for 500 apartments. These numbers can be fixed line
telephones or mobile cell phones or both.
Any phone which receives a call from the intercom can activate a built in relay, which can be
connected to an electric door release or automatic gate system.
2. Getting Started
1) Before installing the unit on site, PROGRAM AND TEST IT ON A BENCH. This system
should only be installed by an access control professional, according to the wiring, fire
and security regulations of your country. The system will not be covered under
warranty by improper installation.
2) Use the keys supplied to open the front door to allow access.
3. SIM Card
1) The 100 model will operate on a standard 2G network. The 500 unit will also work on
a 3G network as well as 2G.
2) For multi apartment systems experiencing heavy use, it may be advisable to
purchase a contract SIM card with inclusive monthly minutes in a calling plan. A data
SIM is not a requirement. The intercom calling time can be set to limit the calling time
for each use, which will help ensure lowest possible calling times.
3) Ensure the SIM card has calling credit, and can make and receive voice calls in a
mobile phone.
4) If the SIM has a pin code request active, disable this in a phone first.
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5) If the SIM card was purchased along with a phone, then it may be locked to that
+
-
Relay 1
N/O
COM
COM
N/O
Relay 2
(Press *)(Press #)
Not used
Not used
open
close
USB port
LCD screen contrast adjust
12-24v
DC
24v d.c.
Up to 2 metres (6 feet) – Minimum 0.5mm2 (20 gauge)
Up to 4 metres (12 feet) – Minimum 1mm2 (16 gauge)
Up to 8 metres (24 feet) – Minimum 1.5mm2 (14 gauge)
phone. Ask your network provider to unlock the SIM so that it can be used in another
device.
6) Insert the working SIM card and connect the antenna as shown below BEFORE
connecting the power.
4. Wiring
Connect power to the unit as per diagram below.
Notes:
1) Do NOT use any other power supply other than the type supplied with the device.
2) Avoid installing the power supply more than 6 meters (18 feet) away from the
intercom, otherwise voltage drop and noise on the power cables will cause unstable
operation.
3) Do NOT connect this power supply to any electric locking device. Electric locks
should be powered from their own power adaptor.
WARNING: Current draw when in operation spikes at up to 2 amps. Do not use alarm
cable or CAT5 cable to connect power to this device.
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