Interconnect - Zetron Model 30 Telephone Interconnect

The Model 30 World Patch is a low-cost, open channel telephone interconnect designed for installation on a simplex radio. It’s an ideal way to add telephone interconnect to simplex radio systems for low power in-plant applications. Its low cost and simple operation make it well suited to applications in smaller radio systems.

APO (advanced programming operation) provides 50 autodials, automatic autodial via 4-click PTT, landline security code for direct air access, FET relay, and other features.