HB-702 2 Channel Select Flush Mount Headset Station

SPECIFICATIONS

Headset Microphone Input

• Input Type : Dynamic
• Input Impedance: >= 1KΩ
• Mic Limiter Threshold: -2dBu ± 3dB
• Mic Limiter Range: >= 15dB

Program Line Input

• Input Impedance: >= 5KΩ

Headset Output

• Load Impedance: >= 8Ω
• Output Impedance: <= 25Ω
• Output Limiter Threshold: +5dBu ± 3dB
• Maximum Output Level before Distortion: >= 17dBu

Party-line Output

• Off Noise: < -74dBu
• Output Impedance: >10KΩ

Party-line Input

• Crosstalk: < -60dB
• Max level before Clipping: >= 12dBu

Frequency Response

• Headset Mic - Party-line: 300 - 15KHz ± 3dB
• Party-line - Headset Out: 300 - 15KHz ± 3dB

Max Distortion

• Headset Mic - Party-line: <= 0.5%
• Party-line - Headset Out: <= 0.2%

Noise

• Headset Mic - Party-line: < -70dBu

Max Gain

• Headset Mic - Party-line: 41dB ± 2dB
• Party-line - 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
• Front Panel Connectors
• Headset: (1) XLR-4M

Front Panel Controls & Indicators

• (1) Sidetone control
• (1) Talk button
• (1) Call button
• (1) Channel select switch
• (1) Volume control

Environmental

• 32 - 122˚F (0 - 50˚C)

Dimensions

• 4.625 in. W x 4.5 in. H x 1.75 in. D
• (117 mm x 114 mm x 44 mm)

Weight

• 0.46 lbs. (0.21 Kg)

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