Clear Com KB-701 Single Channel Remote Speaker Station The KB-701 remote speaker station connects to a single channel of partyline intercom, and operates in half-duplex mode, similar to a walkie-talkie. It features both an integral speaker and a flush-mount electret microphone with mic limiter and a push-to-talk button. Note: Access the Encore Power Supply Calculator to estimate power requirements for analog partyline systems. Details Half-duplex, push-to-talk functionality Four modes of operation that are internally programmable Microprocessor controlled logic and switching 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 Item Code KB-701 Technical Specifications Program Line Input Maximum Level before Clipping: = 20dBu Input Impedance: = 5K Speaker Output Load Impedance: = 4 Max Output Level before 1% Distortion: 20dBu 2dBu Partyline Output O Noise: -74dBu Output Impedance: 10K Partyline Input Crosstalk: -60dB Max level before Clipping: = 12dBu Frequency Response Program Input - Speaker Out: 200 - 18kHz 3dB Partyline- Speaker Out: 200 - 18kHz 3dB Max Distortion Program Input - Speaker Out: = 0.5% Partyline- Speaker Out: = 0.5% Noise Program Input - Speaker Out: -60dBu Partyline- Speaker Out: -50dBu Max Gain Program Input - Speaker Out: = 24dB Partyline- Speaker Out: = 40dB Power Input Voltage Range: 20-30V DC Input Current (Idle): = 90mA Input Current (Max): =110mA Internal Connectors and Jumpers Intercom: Line Five terminal connector Program Input: Three terminal connector Option Switches: Three DIP switches Environmental 32 - 122o F (0 - 50o C) Dimensions 4.5 x 8.5 x 1.75in (HxWxD) (114 x 210 x 44mm) Weight 1.04lbs (0.47kg)