You Haven't Seen This RJ31x Jack Wiring & Use on Buzzfeed

Rj31x jack wiring is a little unusual. The RJ31x jack is used for wiring an alarm system into your phone line. Its purpose is to allow the alarm system to seize the line and dial out even when the phone is off the hook. It’s basically a relay that shorts two lines together when the alarm system is not being used allowing the phones to operate ...

The RJ31X Surface Mounting Jack with shorting bar is used with security systems or similar applications that feature a remote monitoring option. Below is the wiring diagram for your reference, the registered terminal equipment on this diagram is the security system.Rj31x Wiring Comcast - Wiring DiagramsRJ31X pin payout. Fire Alarm and Security ...

The RJ31x jack is used for wiring an alarm system into your phone line. Its purpose is to allow the alarm system to seize the line and dial out even when the phone is off the hook. It’s basically a relay that shorts two lines together when the alarm system is not being used allowing the phones to operate normally.

Wiring in the ELK RJ31X Jack. The Elk RJSET RJ31X jack has an 8 position moduar jack (the actual "RJ31X" jack) on the outside and screw terminals inside. Typically only four screw terminals are used; two for the connection to the outside phone line (T and R), and two for the connection to the inside phone lines (T1 and R1).

This allows the security system to report its emergency signals to the Central Monitoring Station's alarm Receiving Equipment without being blocked by normal telephone usage at the premises. In the event of a malfunction of your security system, the RJ31X Jack will provide a mechanism for quickly unplugging, and thereby disconnecting, your security system from the telephone line.

In the event of an alarm, if the phone is in use or off the hook, the RJ31X disconnects the house phones temporarily so the the security system can take over the phone line and make the call to the alarm company. A standard 8P8C/RJ45 connector (same as Ethernet) plugs into the RJ31X jack to connect the security system.

An RJ31X jack is used to allow your hardwired alarm system to take over control of an existing shared telephone line when it needs to dial out, disconnecting you if you are on the phone or if the phone was left off hook. Telephone carriers requires an RJ31X jack to be used when using a POTS line with an alarm system.

The RJ31X jack always has to be located "upstream" from any other telephone equipment on the premise. When a plug is removed, the house wiring gets connected to the phone company wiring through the 1-4, 5-8 jumpers, therefore it is not necessary to remove RJ31X jack if the fire alarm/security equipment has been uninstalled.

Describes an RJ-31x jack purpose. Why we need it, and how to wire it. These are used in the United States to provide dialtone to alarm panels. The 31x is special in that it is more than just a ...

RJ31x Jack Wiring - purpose is to allow the alarm system to seize the line jack wiring may not be glamourous but it helps to have a schematic.The connections shown are specifically for an RJ45 plug (the thing on the end of the wire).