The module also has a gain control that will allow the gain to be adjusted from 0 dB to 30 dB. The module has a VOX/gating circuit to control muting of lower priority modules and its internal gating circuit with controls for threshold and duration. Built in limiter, with a threshold control, to limit the maximum output level of the module. KEY FEATURES- Dry loop interface to paging ports- Audio-activated paging in dry loop- Gain/Trim control- Limiter- Noise gate w/Threshold & Duration- Mute send & receive- 4 Priority levels- Bus assignable- Transformer-isolated- Screw terminal connections- Loop start or ground start trunk interfacing (requires external power supply;
PRS48)SPECIFICATIONS- Gain: 0dB to 30dB-
Frequency Response: +0/-3dB, 20Hz - 20kHz-
S/N: -90 dBV @ 30 dB of gain, -120 dBV
EIN- Distortion: <0.1%, 20Hz - 20kHz- Input Impedance: Dry loop 30k ohms, Wet loop 1k ohms- Limit (threshold): -10 dBV to off- Gate Threshold: 3mV to 30mV- Gate Duration: 0.5s to 5s- Priority: Four levels- External Power: 48V DC (for talk battery)- CMRR: > 80dB @ 1kHz-
Controls: Gain, Limit, Gate Threshold, Gate
Duration- Connector: 6-position barrier strip-
Dimensions: 1-3/8"W x 3-1/8"H x 3-1/2"D-
Weight: 2.8 oz


