Tyco Security Products, part of Johnson Controls, announced that Sur-Gard, the industry leader in monitoring station solutions, now supports PSTN line cards on the SG-System 5 receiver to give central stations the flexibility to monitor both IP and PSTN alarm signals to create their most powerful receiver solution to date. With this enhancement, SG-System 5 can support a combination of 24 IP or PSTN line cards. More than 150 communication formats are supported through the PSTN line cards, which features patented Automatic Hand Shake (AHS) technology to remember the required handshake and/format of the incoming events resulting in an expedited signal processing time.