Headset Microphone Input
Input Type :Dynamic
Input Impedance: >= 1K
Mic Limiter Threshold: -2dBu ± 3dB
Mic Limiter Range: >= 15dB
Program Line Input
Input Impedance: >= 5K
Headset Output
Load Impedance: >= 8
Output Impedance: <= 25
Output Limiter Threshold: +5dBu ± 3dB
Maximum Output Level before Distortion: >= 17dBu
Partyline Output
Off Noise: < -74dBu
Output Impedance: >10K
Partyline Input
Crosstalk: < -60dB
Max level before Clipping: >= 12dBu
Frequency Response
Headset Mic - Partyline: 300 - 15KHz ± 3dB
Partyline - Headset Out: 300 - 15KHz ± 3dB
Max Distortion
Headset Mic - Partyline: <= 0.5%
Partyline - Headset Out: <= 0.2%
Noise
Headset Mic - Partyline: < -70dBu
Max Gain
Headset Mic - Partyline: 41dB ± 2dB
Partyline - Headset Out: >= 34dB
Power
Input Voltage Range: 20-30 VDC
Input Current (Idle):<= 50mA
Input Current (Max):<=100mA
Internal Adjustments and Connections
Intercom Line: Seven terminal connector
Option Switches: Two DIP switches
Option Board Jumper: Two sets of options jumpers
Environmental
32 - 122°F (0 - 50°C)
Dimensions
4.5 x 4.6 1.75 in (HxWxD)
(114 x 117 x 44 mm)
Weight
0.46 lbs. (0.21 Kg)
