The SPCN110.000 PSTN module (up to 56K) is compatible with the complete SPC panel range and plugs directly on the main PCB removing the need for any additional wiring. The modem can take control of the line and communicates with a central station (ARC) using common format protocols (SIA, Contact ID). It also supports PPP connection to acre Intrusion Connect Pro software for remote programming and configuration up-/download. The PSTN modem can be used as the primary source of communication or as backup to GSM modem.