
Description
HB-702 is a selectable two-channel wall or console-mounted headset station. Microprocessor-controlled logic and switching, with momentary/latching talk button. Visual call signaling. Optional 4-wire and TW daughter boards.
The unit is mounts in a standard U.S. two-gang outlet box. The stations offer excellent speech intelligibility even in high noise environments. Microprocessor-controlled logic plus a set of internal and external controls allow the features of these stations 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.2-Channel Select Flush-Mount Headset Station (4.5 X 4.5) Mounts in Console or Standart 2-Gang Electrical Box. HB-702 is a selectable two-channel wall or console-mounted headset station. Microprocessor-controlled logic and switching, with momentary/latching talk button. Visual call signaling. Optional 4-wire and TW daughter boards.Features:- Selectable two-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
Headset Microphone Input | |
Input Type | Dynamic |
Input Impedance | >= 1Kohms |
Mic Limiter Threshold | -2dBu ± 3dB |
Mic Limiter Range | >= 15dB |
Program Line Input | |
Input Impedance | >= 5Kohms |
Headset Output | |
Load Impedance | >= 8ohms |
Output Impedance | <= 25ohms |
Output Limiter Threshold | +5dBu ± 3dB |
Maximum Output Level before Distortion | >= 17dBu |
Party-line Output | |
Off Noise | < -74dBu |
Output Impedance | >10Kohms |
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 |
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) |
HB-702 is a selectable two-channel wall or console-mounted headset station. Microprocessor-controlled logic and switching, with momentary/latching talk button. Visual call signaling. Optional 4-wire and TW daughter boards.
The unit is mounts in a standard U.S. two-gang outlet box. The stations offer excellent speech intelligibility even in high noise environments. Microprocessor-controlled logic plus a set of internal and external controls allow the features of these stations 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.2-Channel Select Flush-Mount Headset Station (4.5 X 4.5) Mounts in Console or Standart 2-Gang Electrical Box. HB-702 is a selectable two-channel wall or console-mounted headset station. Microprocessor-controlled logic and switching, with momentary/latching talk button. Visual call signaling. Optional 4-wire and TW daughter boards.Features:- Selectable two-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
Headset Microphone Input | |
Input Type | Dynamic |
Input Impedance | >= 1Kohms |
Mic Limiter Threshold | -2dBu ± 3dB |
Mic Limiter Range | >= 15dB |
Program Line Input | |
Input Impedance | >= 5Kohms |
Headset Output | |
Load Impedance | >= 8ohms |
Output Impedance | <= 25ohms |
Output Limiter Threshold | +5dBu ± 3dB |
Maximum Output Level before Distortion | >= 17dBu |
Party-line Output | |
Off Noise | < -74dBu |
Output Impedance | >10Kohms |
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 |
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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