Clear-Com HB-702 Encore 2-Channel Remote Headset Station

The HB-702 is a two-channel-selectable, full-duplex headset station, able to be mounted into a wall or other surface. This headset station is ideal for installation in theatrical, performance, broadcast, and industrial facilities - wherever a multi-channel, full-duplex headset communications panel is desired. The unit mounts in a standard U.S. two-gang outlet box. This station offers excellent speech intelligibility even in high noise environments. Microprocessor-controlled logic plus a set of internal and external controls allow the features of this station to be tailored to the needs of the user. Electronic switching for the talk button, blue-color LED (on) or amber-color (off), permits momentary or latching operation. A Remote Mic Kill (RMK) signal on the intercom line will turn off the talk function if it is accidentally left on.

Clear-Com HB-702 Features

• Momentary/Latching Talk switch with LED
• Microprocessor controlled logic and switching
• Visual call signaling
• Headset connector with volume control and sidetone adjust
• Optional 4-wire daughter board for flexibility
• Mountable into a standard US two-gang outlet box

• HB-702 Encore 2-Channel Remote Headset Station1

• Headset Microphone Input
  • Input Type: Dynamic
  • Input Impedance: >= 1K
  • Mic Limiter Threshold: -2dBu ± 3dB
  • Mic Limiter Range: >= 15dB
• Program Line InputInput 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%
• NoiseHeadset Mic – Partyline: < -70dBu
• Max Gain
  • Headset Mic – Partyline: 41dB ± 2dB
  • Partyline – Headset Out: >= 34dB
• Power
  • Input Voltage Range: 20-30V DC
  • 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
• Environmental32 – 122°F (0 – 50°C)
• Dimensions (HxWxD)4.5x4.6x1.75" (114x117x44mm)
• Weight0.46lbs (0.21kg)