PAGE 7 of 36 VR GSM DOOR INTERCOM TECHNICAL MANUAL VER2.0.0
CONNECTION DESCRIPTION
+12V 12Vdc input to power the module
0V Ground connection
NC Normally closed connection of dry contact relay
NO Normally open connection of dry contact relay
C Common connection of dry contact relay
AI Auxiliary input (Between AI & C1 triggers AO, Between AI & C2
sends an SMS to the number stored in memory location 020
PE Exit button input (Between PE & C1) Triggers relay for programmed
time.
a
b
c
d
e
C1 Common 1 for call buttons 1-5 & PTE & AI(AO Output trigger)
C2 Common 2 for call buttons 6-10 & AI(SMS sent)
AO 0V auxiliary output (Open collector) Max. 150mA
ANTENNA
The GSM antenna connects to the SMA female bulkhead on the rear of the module. A
GSM antenna with a SMA male connector should be used. An antenna is supplied along
with an L mounting bracket. Other types of GSM antenna can also be used.
Note: An antenna must always be connected.
Note: Always route the GSM cable away from the microphone wires and the power
supply wires to avoid interference on the speech channels.
SIM CARD
The GSM Intercom is supplied without a SIM card. T0 insert a SIM card, remove the cover
from the Art.150, insert a SIM card and replace the lid. Remember to only insert/remove
the SIM card when all power to the unit is removed, the SIM card can be damaged if
inserted/removed while the power is on. Also remember that the SIM may need setting up
prior to inserting into the intercom as stated earlier in this manual.
a – e are switched 0V inputs from the call buttons. The
common side of the call buttons connects to either C1 or
C2 (C1 with a-e for buttons 1-5, C2 with a-e for buttons
6-10)
Relay contacts:
3A@24Vdc
3A@120Vac
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