• This jack is used to connect alarm systems and other equipment that needs a phone line to make a call.
  • When the alarm dialer or other device is in use, all phones on the line are disconnected.
  • When the device is unplugged from the jack, spring-loaded jumpers establish normal connections.
  • A 2-foot-long line cord is included, with a modular plug on one end, and spade lugs on the other end.

Special RJ-31X jack for alarm dialers & other special equipment. FREE SHIP


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