Clear-Com HB-704 4 Channel Wall Console Mounted Headset Station
Clear-Com HB-704 4 Channel Wall Console Mounted Headset Station
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Clear-Com HB-704 4 Channel Wall Console Mounted Headset Station
4-Channel Select Flush-Mount Headset Station (4.5" X 4.5") Mounts in Console or Standard 2-Gang Electrical Box
HB-704 is a selectable four intercom channel wall or console-mounted headset station. Microprocessor-controlled logic and switching, with momentary/latching talk button. Visual call signaling.
Key Features
- Selectable two- or four-channel, full-duplex communication
- Microprocessor controlled logic and switching
- Momentary/latching talk switch with LED
- Visual call signaling with bright LED indicator
- Headset connector with volume control and sidetone adjust
- Use with optional TW or 4-wire circuit boards
- Easy installation and connection
Technical Specifications
Headset Microphone Input
Input Type : Dynamic
Input Impedance: >= 1K OHMS
Mic Limiter Threshold: -2dBu ± 3dB
Mic Limiter Range: >= 15dB
Program Line Input
Input Impedance: >= 5K OHMS
Headset Output
Load Impedance: >= 8 OHMS
Output Impedance: <= 25 OHMS
Output Limiter Threshold: +5dBu ± 3dB
Maximum Output Level before Distortion: >= 17dBu
Party-line Output
Off Noise: < -74dBu
Output Impedance: >10K OHMS
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 - 122F (0 - 50C)
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)
Payment & Security
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