DC Remote Controls by CPI
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The DR series DC remote control units are designed to provide control of a remotely located base station over an in-house or leased metallic wire pair. The DR series units use a simple dip switch to select the desired control current and other features. Standard features include: receive and transmit audio compression, front panel transmit capability, line continuity sensor, parallel cross mute, line operated PTT indicator, and 2 watt audio output.