Clear-Com KB-702

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.

• Talk/Listen from headset mic, telephone handset or push-to-talk microphone

• Four modes of operation that are internally programmable via dip switches

• Balanced local program input with separate level control

• Visual and audible call signaling

• Optional 4-wire daughter board for flexibility

• Wall or console mountable, or optional V-Box for portable or desktop use

• Built-in speaker

HEADSET MICROPHONE INPUT:

• Input Type: Dynamic

• Input Impedance: >= 1K

• Mic Limiter Threshold: -2dBu ± 3dB

• Mic Limiter Range: >= 15dB

PROGRAM LINE INPUT:

• Maximum Level before Clipping: >= 20dBu

• Input Impedance: >= 5K

HEADSET OUTPUT:

• Load Impedance: >= 8

• Output Impedance: <= 25

• Output Limiter Threshold: +5dBu ± 3dB

• Maximum Output Level before Distortion: >= 17dBu

SPEAKER OUTPUT:

• Load Impedance: >= 4

• Max Output Level before 1% Distortion: 20dBu ± 2dBu

PARTY-LINE OUTPUT:

• Off Noise: < -74dBu

• Output Impedance: >10K

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)