Bogen-MIC2S-Operation-Manual 电路图 维修手册.pdf

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1、MIC2S Microphone Input Module Features Electronically-balanced Screw terminal connections Phantom power Gain/Trim control Hi- and Lo-cut filters Adjustable voice enhancer Audio gating with threshold adjustment Variable signal limiter 4 levels of available priority Can be muted from higher priority m

2、odules Can mute lower priority modules Printed in Taiwan.0208 2002 Bogen Communications, Inc. 54-2078-01R3 Specifications subject to change without notice. 50 Spring Street, Ramsey, NJ 07446, U.S.A. 201-934-8500; Fax: 201-934-9832 Block Diagram RadioFans.CN 收音机爱 好者资料库 J5 J6 J7 J4 J3 Gain Provides co

3、ntrol over the level of input signal that can be applied to the internal signal buses of the main unit. Allows a way to balance the input lev- els of various devices so that the main unit controls can be set to relative- ly uniform or optimum levels. Hi-Cut Allows a reduction in the amount of treble

4、 frequencies above 8 kHz.This is a cut only filter and does not allow boosting treble.Clockwise rotation increas- es the amount of cut. Gate Controls the minimum necessary input signal level to turn the modules out- put on and apply signal to the main units buses.Clockwise rotation increas- es the n

5、ecessary signal level required to produce output as well as the sig- nal threshold necessary to cause the module to mute other modules. Enhance Controls the amount of intelligibility enhancement applied to microphone sig- nal. Intelligibility enhancement provides a crisper sounding signal that is ea

6、sier to understand over background noise.Clockwise rotation increases the effect. Limiter (Limit) Sets the signal level threshold at which the module will begin to limit the level of its output signal. Clockwise rotation will allow more output signal before limiting, counterclockwise rotation will a

7、llow less.The limiter moni- tors the modules output signal level,so increasing Gain will affect when lim- iting takes place. Connections Uses a screw terminal block to make connections to the modules input.The input is low-impedance, electronically-balanced for excellent noise immunity. Connect sign

8、al to + and - terminals and cable shield to G terminal. Jumper Selections Priority Level* This module can respond to 4 different levels of priority. Priority 1 is the highest priority. It mutes modules with lower priorities and is never muted.Priority 2 can be muted by Priority 1 modules and mutes m

9、odules set for 3 or 4. Priority 3 is muted by either Priority 1 or 2 modules and mutes Priority 4 modules. Priority 4 modules are muted by all higher priority modules. *The number of priority levels available is determined by the module capacity of the amplifier the modules are used in. Gating Gatin

10、g can help reduce noise in systems with multiple mic inputs.You can disable gating (turning off) of the modules output when insufficient audio is present at the input. Detection of audio for the purpose of muting lower priori- ty modules is always active regardless of this jumper setting. Phantom Po

11、wer 24V phantom power can be supplied to condenser micro- phones when jumper is set to On position. Leave off for dynamic mics. Bus Assignment This module can be set to operate so that the MIC signal can be sent to the main units A bus, B bus, or both buses. Module Installation 1.Turn off all power

12、to the unit. 2.Make all necessary jumper selections. 3.Position module in front of desired module bay opening, making sure that the module is right- side up. 4.Slide module on to card guide rails. Make sure that both the top and bottom guides are engaged. 5.Push the module in to the bay until the fa

13、ceplate contacts the units chassis. 6.Use the two screws included to secure the mod- ule to the unit. WARNING: Turn off power to unit and make all jumper selections before installing module in unit. Lo-Cut Allows a reduction in the amount of bass frequencies below 100 Hz.This is a cut only filter an

14、d does not allow boosting bass. Clockwise rotation increases the amount of cut. RadioFans.CN 收音机爱 好者资料库 MIC2S Microphone Input Module Features Electronically-balanced Screw terminal connections Phantom power Gain/Trim control Hi- and Lo-cut filters Adjustable voice enhancer Audio gating with thresho

15、ld adjustment Variable signal limiter 4 levels of available priority Can be muted from higher priority modules Can mute lower priority modules Printed in Taiwan.0208 2002 Bogen Communications, Inc. 54-2078-01R3 Specifications subject to change without notice. 50 Spring Street, Ramsey, NJ 07446, U.S.A. 201-934-8500; Fax: 201-934-9832 Block Diagram RadioFans.CN 收音机爱 好者资料库