ClearCom KB-212 User Manual

Speaker station

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KB-212

SPEAKER STATION

USER MANUAL

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Summary of Contents for ClearCom KB-212

Page 1: User Manual
KB-212 SPEAKER STATION USER MANUAL...
Page 2 KB-212 Speaker Station Introduction Congratulations and thank you for choosing this Clear-Com product. The KB-212 Speaker Station is a powerful, yet user-friendly unit that can serve as a versatile intercom station. Please read this manual completely to better understand the functions of these products.
Page 3: Quick Start
Set the Option switches to the default (toward the front panel) position. Connect the intercom lines. Install the KB-212 into the four-gang outlet box or V-Box. (For ™ additional information, refer to the Clear-Com PL-Pro System Installation Manual.) Set Listen Levels.
Page 4: Operation
Clear-Com Intercom Systems KB-212 Speaker Station Operation Normal operation of the KB-212 Speaker Station only requires access to the front-panel controls. The controls located elsewhere on the unit are intended to be set-and-forget in nature For intercom operation, set the Listen level control to the desired level and press the Talk button when talking.
Page 5: Internal Adjustments And Connections
This can be useful when the operator's attention has been drawn away from the KB-212 indicator panel. The audible tone alert level can be adjusted or turned off by an internal control. The Tone Alert will not sound if a call signal is originated at the KB-212 station.
Page 6 Clear-Com Intercom Systems KB-212 Speaker Station P3 Must be installed if no option P1 Must be installed if no option View from top of KB-212 Front Panel FIGURE 2: Internal Controls 9—Call Alert Tone Level Control This control adjusts the volume of the Call Alert Tone sound. This is normally adjusted when the system is set up and shouldn’t need to be adjusted during...
Page 7 • Operating Mode (S1-2 and S1-3)—These switches work together to define the operating mode of the KB-212. In modes other than Normal, the call signal from other stations on the same channel activates the KB-212. Refer to the following table:...
Page 8 KB-212 Speaker Station 12—Intercom Line Connection The KB-212 contains a five-terminal, plug-on connector for intercom line connection. This connector is intended to be unplugged from the circuit board when connecting the intercom line, and then plugged back on when the wiring is completed.
Page 9 When the optional EB-4W or EB-TW Modules are used, both P1 and P3 must be removed. Save these jumper plugs for possible future use. Note: The KB-212 will not operate without either the jumper plugs or the optional modules installed.
Page 10: Troubleshooting
System does not operate. The Talk Light does not come on when Talk button is pressed. Scenario 1 No intercom connection to the KB-212. If the EB-4W 4-Wire Option Module is connected, no AC power to the KB-212. © Clear-Com Intercom Systems 2000...
Page 11 KB-212 Speaker Station Clear-Com Intercom Systems Solution: Check connections and cable. Scenario 2 The KB-212 has an internal failure. Solution: Unit requires servicing. • System operates incorrectly. The Talk Light does not come on when Talk button is pressed or stays on until Talk button is pressed and the Speaker is off when it should be on.
Page 12 Solution: Set the Main Station or Power Supply termination switch for the appropriate channel to the ON position. Scenario 3 The KB-212’s microphone is too close to an open speaker on the same channel. Solution: Change the units’ location. •...
Page 13: Parts Lists
Scenario 3 Plug P1 missing on circuit board. Solution: Plug P1 must be installed in the J1 jack if the EB-4W or EB-TW options are not used. Parts Lists Parts List for the KB-212 Main PCB Capacitors Value Type Volts Tol.
Page 14 Clear-Com Intercom Systems KB-212 Speaker Station 3.24K OHM 1/10 411438 4.75K OHM 1/10 411454 5.62K OHM 1/1O 411461 6.19K OHM 1/10 411465 8.25K OHM 1/10 411477 10.0K OHM 1/10 411485 R8 R44 12.1K OHM 1/10 411502 R13 R33 20.0K OHM...
Page 15 KB-212 Speaker Station Clear-Com Intercom Systems Button RECT. MINIATURE BUTTON, BLACK 240082 Lens LENS, YELLOW, ROUND FOR T1 3/4 240099 Speaker 2 1/2 IN. SPKR 8 OHM 3.5W 500103 Panel Mic ELECTRET MIC ELEMENT W/PINS 500132 Switch DPDT P.B. MINIATURE W/LONG PLUNGER...
Page 17 KB-212 Speaker Station Clear-Com Intercom Systems This page is a place holder. Rev. B © Clear-Com Intercom Systems 2000...
Page 18: Technical Specifications
Clear-Com Intercom Systems KB-212 Speaker Station Technical Specifications Panel Microphone Pre-Amp Input Type: Electret Gain from panel mic to intercom line: +25 dB, low sensitivity; +31.5 dB high sensitivity Pre-Amp Response Curve Frequency Response: 250 Hz to 12 kHz, contoured for intelligibility...
Page 19: Front Panel Controls And Indicators
Performance specifications included in this manual are design-center specifications and are included for customer guidance and to facilitate system installation. Actual operating performance may vary. KB-212 Manual P/N 810254 © 2000 Clear-Com Systems All Rights Reserved Rev. B...
Page 20: Clear-Com Limited Warranty
Clear-Com Intercom Systems KB-212 Speaker Station Clear-Com Limited Warranty The Clear-Com warranty does not cover any defect, malfunction, or failure caused beyond the control of Clear-Com, including unreasonable or negligent operation, abuse, accident, failure to follow instructions in the manual, defective or improper associated equipment, attempts at modification and repair not authorized by Clear-Com, and shipping damage.
Page 21: Non-Warranty Repair
KB-212 Speaker Station Clear-Com Intercom Systems Non-Warranty Repair Equipment that is not under warranty must be sent prepaid to Clear-Com. If requested, an estimate of repair costs will be issued prior to service. Once repair is approved and repair of equipment is completed, the equipment will be shipped freight collect from the factory.
Page 22 4065 Hollis Street, Emeryville, CA 94608 (510) 496-6666 Fax (510) 496-6601 Manual Part Number 810254 Rev. B...