Introduction
Page 15
Note:
The maximum number of radio detectors also depends partly on the density of radio
transmitters within a given volume. Radio expanders must be at least 1 metre apart.
Communicators
Plug-by (digital communicator)
All control units except i-on Compact and i-on30R+ include a built-in plug-by
communicator, which allows the system to communicate externally to an alarms-receiving
site using a separate digital communicator (purchased separately).
Table 1 shows the number of plug-by outputs available on each control unit. By default,
the outputs are switched negative (from 12Vdc to 0V) when active. You can program these
outputs to be switched positive (from 0V to 12Vdc) when active.
Note:
SIA IP (SIA over the network) is available by connecting the control unit to the
internet and configuring SIP IP communications in SecureConnect.
Plug-on modules
All control units can also communicate externally using a plug-on module. the following
plug-on modules are supported:
COM-SD-PSTN
A speech dialler and PSTN (Public Switched Telephone Network)
module. This allows control units to report alarm conditions over a
wired telephone network using standard ARC protocols (FF, SIA or
CID), recorded speech messages or SMS texts.
COM-SD-GSM
A speech dialler and GSM (Global System for Mobile
communication) module. This allows control units to report alarm
conditions over a 2G mobile phone network using standard ARC
protocols (FF, SIA or CID), recorded speech messages or SMS
texts.
A SIM card is required. Preferably, a "pay-as-you-go" tariff should
not be used.
Note:
The use of GSM for ARC communication is not
recommended, as the networks often distort the audio tones, which
can cause the communication to fail. If you use GSM and
experience difficulties, try a different format (such as Contact ID).
Alternatively, IP communications via an optional COM-DATA-4G
plug-on module will provide a more robust and reliable solution.
COM-DATA-4G
The COM-DATA-4G module allows a control unit to access the
SecureConnect service over the internet using LTE and GSM (4G
and 2G) mobile phone networks.
A SIM card is required that supports 4G and 2G data. A data
allowance of 250MB per month should be sufficient to cover normal
activity in a typical installation. Preferably, a "pay-as-you-go" tariff
should not be used.
The COM-SD-GSM and COM-DATA-4G have a built-in antenna, which is suitable in most
cases. If the location of the control unit has poor signal strength, an external antenna
(COM-ANT-01) can be purchased, which must be fitted outside of the control unit.