Clear-Com KB-702 2 Channel Wall Console Mounted Headset Speaker Station

2-Channel Select Flush Mount Headset/Speaker Station Mounts in V-Box, HelixNet S-Mount, or console.

The KB-702 remote speaker station permits the user to select between two channels of party-line communications, with the ability to talk and/or listen on the selected channel. The user can listen via the integrated speaker, or may use a headset or telephone-style handset - and can talk via a headset mic, a telephone handset, or a push-to-talk microphone.

Key Features

• Selectable two-channel, full-duplex operation
• Microprocessor-controlled logic and switching
• Momentary/latching talk button
• Visual and audible call signaling, with bright LED indicator
• Balanced local program input with separate level control
• Internal controls for call signal tracking, mic latch disable, and other functions
• Use with headset or handset, with integral speaker for monitoring

Technical Specifications

Headset Microphone Input
Input Type
Dynamic
Input Impedance
>= 1K OHMS
Mic Limiter Threshold
-2dBu ± 3dB
Mic Limiter Range
>= 15dB
Program Line Input
Maximum Level before Clipping
>= 20dBu
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
Speaker Output
Load Impedance
>= 4 OHMS
Max Output Level before 1% Distortion
20dBu ± 2dBu
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
Program Input - Headset Out
200 - 18KHz ± 3dB
Program Input - Speaker Out
200 - 18KHz ± 3dB
Party-line - Headset Out
200 - 18KHz ± 3dB
Party-line - Speaker Out
200 - 18KHz ± 3dB
Max Distortion
Headset Mic - Party-line
<= 0.5%
Program Input - Headset Out
<= 0.2%
Program Input - Speaker Out
<= 0.5%
Party-line - Headset Out
<= 0.2%
Party-line - Speaker Out
<= 0.5%
Noise
Headset Mic - Party-line
< -70dBu
Program Input - Headset Out
< -60dBu
Program Input - Speaker Out
< -60dBu
Party-line - Headset Out
< -50dBu
Party-line - Speaker Out
< -50dBu
Max Gain
Headset Mic - Party-line
41dB ± 2dB
Program Input - Headset Out
>= 18dB
Program Input - Speaker Out
>= 24dB
Party-line - Headset Out
>= 34dB
Party-line - Speaker Out
>= 40dB
Power
Input Voltage Range
20-30 VDC
Input Current (Idle)
<= 90mA
Input Current (Max)
<=110mA
Internal Adjustments and Connections
Intercom
Line Five terminal connector
Program Input
Three terminal connector
Option Switches
Three DIP switches
Call Signal Jumper3
Three sets of options jumpers
Call Alert Tone Level Control
Level adjustment control
Front Panel Connectors
Panel Mic (KB-702GM only)
(1) 1/4 in. (0.64 cm) panel mounting jack
Headset
(1) XLR-4M
Front Panel Controls & Indicators
(1) Program monitor level control
(1) Sidetone null control
(1) Talk button
(1) Call button
(1) Speaker ON-OFF switch
(1) Channel select switch
(1) Speaker volume control
Environmental
32 - 122F (0 - 50C)
Dimensions
8.25 in. W x 4.5 in. H x 1.75 in. D
(210 mm x 114 mm x 44 mm)
Weight
0.99 lbs. (0.45 Kg)