Discover how to properly install and wire your Rj31x for reliable telephone line security and alarm system connection with this detailed wiring diagram guide.. A P P L I C A T I O N FIRE ALARM B U L L E T I N RJ-31X TELEPHONE JACK INSTALLATION P u r p o s e This bulletin details the proper installation and testing of a modular RJ-31X jack. D e s c r i p t i o n An RJ-31X jack is designed to facilitate wiring of an alarm panel and premise telephone on the same phone line while assuring that the processing of alarm signals has priority (line seizure.
An RJX jack is designed to facilitate wiring of an alarm panel and premise telephone on the same phone When no connector is plugged into the RJX jack, the telco ring and tip signals (input terminals 4 W i r i n g d i a g r a m. 1. 8. 7.. RJ31X / CA38X Telephone Wiring Information Your alarm system likely came with a cable & jack set for connecting your alarm system to the telephone system in your home. Particularly if you are having your security system professionally monitored, it's critical that the alarm can ALWAYS get a dial tone and call out to alert the station to an alarm condition or problem. The purpose of the RJ31X.