Simple handset – headset sound powered telephone network

A quick way to set up a simple sound powered network is to connect the handsets or headset-chestsets using sound powered telephone jackboxes. Be sure to connect the jackboxes with at least 18 AWG two-conductor, twisted-pair wiring. Dynalec Corporation offers jackboxes in three configurations: single-jack (702003-473), two-jack (702003-471), and four jack (702003-472).

• NOTE: Never apply power of any kind (battery or external AC) to the sound powered telephone talking network!