Videx 4000 Series Technical Manual page 23

4000 Series GSM Audio Intercom with Proximity
Auxiliary Inputs/Outputs
AO1 SET TO MODE 02, 'STATUS INDICATION'
When set to mode 02 auxiliary output AO1 is used exclusively as a monitoring input. For example, checking if a gate/door is open
or closed. Once set the AO1 input status can be interrorgated in two ways:
1. During a call: press 9 on the telephone keypad and listen to the number of beeps in the ear piece. One beep indicates the input
is closed and two beeps indicates the input is open.
2. At anytime: send the SMS message 1111CHK? to the GSM PRO intercom. An SMS message will be returned with IN=OP for
open or with IN=CL for closed.
For this feature an additional relay will be required and the AO1 input must be wired as shown in Fig.32.
Fig. 32
AO1 SET TO MODE 03, 'DIVERT CALLS TO MASTER NUMBER'
It is possible to have the GSM PRO call buttons diverted to the master number (outside certain hours) using the TBA timeband
feature (refer to timeband TBA programming notes on page 47). Alternatively it is possible to divert the GSM PRO call buttons to
the master number when auxiliary output AO1 has been set to mode 03 (auxiliary output AO1 is used as a monitoring input). In
this instance a switched common and normally open (CO/NO) trigger needs to be used to enable or disable 'divert calls to master
number' and the auxiliary output AO1 must be wired as shown in Fig.33. In either case a master number is required following the
STM store master number feature (refer to STM programming notes on page 46).
If there is no master number stored, the intercom will beep and the busy LED will flash once to indicate no call is taking place (if the
speech board is switched ON, the GSM PRO module will announce "the phone is switched off please try later").
Fig. 33
4000 Series GSM Audio Intercom - Technical Manual
Art.4810
Art.4810
To Antenna
To Antenna
- 23 -
1
OR
Normally open (NO) switched input to
enable and disable divert to master number
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2