A surface mounted two-channel-selectable, full-duplex headset station, the Clear-Com HB-702 is designed for applications where speech intelligibility is a priority even in noisy environments. Equipped with momentary and latching LED talk switch, call trac
FEATURES:
• 2-Channel Remote Headset Station
• 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
SPECIFICATIONS:
Headset Microphone Input
Input Type : Dynamic
Input Impedance: >= 1K
Mic Limiter Threshold: -2 dBu ± 3 dB
Mic Limiter Range: >= 15 dB
Program Line Input
Input Impedance: >= 5K
Headset Output
Load Impedance: >= 8
Output Impedance: <= 25
Output Limiter Threshold: +5 dBu ± 3 dB
Maximum Output Level before Distortion: >= 17 dBu
Partyline Output
Off Noise: < -74 dBu
Output Impedance: >10K
Partyline Input
Crosstalk: < -60 dB
Max level before Clipping: >= 12 dBu
Frequency Response
Headset Mic – Partyline: 300 – 15 KHz ± 3 dB
Partyline – Headset Out: 300 – 15 KHz ± 3 dB
Max Distortion
Headset Mic – Partyline: <= 0.5%
Partyline – Headset Out: <= 0.2%
Noise
Headset Mic – Partyline: < -70 dBu
Max Gain
Headset Mic – Partyline: 41 dB ± 2 dB
Partyline – Headset Out: >= 34 dB
Power
Input Voltage Range: 20-30 VDC
Input Current (Idle):<= 50 mA
Input Current (Max):<=100 mA
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 lb. (0.21 Kg)
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