Headset Microphone Input |
Input Type: Dynamic Input Impedance: >= 1KΩ Mic Limiter Threshold: -2dBu ± 3dB Mic Limiter Range: >= 15dB |
Program Line Input |
Maximum Level before Clipping: >= 20dBu Input Impedance: >= 5KΩ |
Headset Output |
Load Impedance: >= 8Ω Output Impedance: <= 25Ω Output Limiter Threshold: +5dBu ± 3dB Maximum Output Level before Distortion: >= 17dBu
|
Speaker Output |
Load Impedance: >= 4Ω Max Output Level before 1% Distortion: 20dBu ± 2dBu |
Party-line Output |
Off Noise: < -74dBu Output Impedance: >10KΩ |
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 - 122˚F (0 - 50˚C) |
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) |