Communicator Features

The design of our IP communicator has evolved from the secure message protocol at its core to include a veritable “Swiss Army knife” set of tools to suit a wide range of applications. The SPT4 versions offer a lower cost for some specific applications and this is achieved by omitting some components and by restricting functionality. The product that is appropriate to your application can be selected from the following table:

Features	SPT431	SPT421	SPT420	SPT411
LAN  – automatic (DHCP) or fixed IP Address	✔			✔
GPRS connection using Roaming SIM	✔	✔	✔
On/Off digital inputs with engineer’s Input Learn facility	✔	✔	✔	✔
Hi/Low voltage threshold inputs with Fault state	✔	✔	✔	✔
Alarms for Low Voltage supply and Power Up	✔	✔	✔	✔
Local or remote Day/Night switching of inputs	✔	✔	✔	✔
Serial digicom alarms SIA CID FF via PSTN emulation	✔	✔		✔
High speed serial connection for alarm panels	✔	✔		✔
UDL via PSTN input or serial connection	✔	✔		✔
Emergency telephone facility – for lifts and call-points	✔	✔
Micro USB connector for local configuration	✔	✔	✔	✔
Diagnostic LEDs – status, GPRS signal strength	✔	✔	✔	✔