The KB-702 remote speaker station permits the user to select between two channels of partyline communications, with the ability to talk and/or listen on the selected channel. The user can listen via the integral 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.  

Note: Access the Encore Power Supply Calculator to estimate power requirements for analog partyline systems.

DETAILS

• 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

TECHNICAL SPECIFICATIONS

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

Partyline Output

Off Noise: < -74dBu

Output Impedance: >10K

Partyline Input

Crosstalk: < -60dB

Max level before Clipping : >= 12dBu

Frequency Response

Mic - Partyline: 300 - 15kHz ± 3dB

Program Input - Headset Out: 200 - 18kHz ± 3dB

Program Input - Speaker Out: 200 - 18kHz ± 3dB

Partyline- Headset Out: 200 - 18kHz ± 3dB

Partyline- Speaker Out: 200 - 18kHz ± 3dB

Max Distortion

Headset Mic - Partyline: <= 0.5%

Program Input - Headset Out: <= 0.2%

Program Input - Speaker Out: <= 0.5%

Partyline- Headset Out: <= 0.2%

Partyline - Speaker Out: <= 0.5%