• Extends your ring down to multiple stations
• Any off hook rings all stations
• Meets legal requirements for backup communications!
• Compatible with standard and electronic telephones
• Runs on 24 VDC or 12VAC

The QLRD1 is the ultimate (and very popular) telephone ring down. As described, it provides an ultra reliable dedicated communications path between two standard telephones while providing an automatic ring of the called station by merely going off hook with the calling station. These 2-station ring downs have been used for years.

But now the plot thickens! What if you needed to to have multiple stations in the path? What if you needed up to 4 stations to simultaneously ring with an off hook of any one station? No problem with the new QLRD4 Call-All-Station Extender! Add it to the QLRD1 Ring Down and you now have a complete 4 station automatic ring down. If any station of the 4 goes off hook, it rings the other three stations. When a ringing station goes off hook to answer, a full duplex intercom path is established between all 4 stations!

It gets even better! With both units designed to run on 24VDC, the pair can provide the legal requirement for some public locations (ski lodges, etc.) to have a battery backed emergency communications system between several points. Use standard gel cells, telco batteries, even two car batteries in series to provide a complete stand-alone system. Use AC chargers or even solar chargers to keep the system charged. The extender can also be run on the 12VAC power source from the QLRD1!

The extender is compatible with standard and electronic telephone sets. Just connect the stations, use modular RJ-11 cables to connect to the QLRD1, provide 24 VDC, and you all set. Just like the QLRD1, the extender measures 5/8 x 4¼ x 2½ inches and is totally encapsulated in UL 94V-0 flame-resistant epoxy resin for long, reliable operation. Makes it easy to mount in a small outdoor call box or other suitable enclosure.