Bogen SI35A - Manual

MCP35A Control Panel Rear View 1. MIC 1 — Connections for an external mic (MIC 1). When the PROGRAM DISTRIBUTION button MIC 1 is pressed, the microphone connected here becomes active. As shipped from the factory, a link is installedbetween the HI and CONS MIC terminals. This makes the CONSOLE MIC ac...

SBA225 Speaker Selector Panel Front View 1. Room selector switch — Position of the room switch controls the type of audio program material delivered to the room speaker. 2. Call annunciators — Lights to indicate a room has placed an intercom request from a call switch3. Program busses — A room speak...

Basic System Operation Communicating With a Selected Speaker Use the following steps to talk and listen to a room that has its switch set to the “C” (down) position. 1. Place the switch of the room that you wish to talk and listen to in the “C” (down) position. 2. Make sure the PROGRAM DISTRIBUTION ...

Basic System Hook-Up 4-Wire Speaker Connections to the SBA225 4-wire speaker connections (3-conductor + shield) is recommended for all new installations. The figure belowshows the connection to the back of the SBA225 when using a 4-wire system. Note: You must use Bogen connectors for this connection...

Call-In Switches Two call-in switches, CA10A and CA11A, are recommended for use with the SI and PI. The CA10A is a momen-tary push switch that has circuitry to light the annunciator light on the SBA225 room selector panel. The CA11Ahas the same capability as the CA10A and includes a privacy lock-out...

External Booster Amp An external booster amplifier (Bogen Model BPA60) can be connected when the application requires more than35 watts. Using an external amplifier disconnects the internal 35W amp of the MCP35A. To install, connect aRCA cable from the MCP35A LINE OUT jack to the Hi-Z input jack on ...

TWK351 Wire Converter The model TWK351 is an adapter used in instances where there is existing 3-wire (2-conductor + shield)room wiring. The TWK351 cannot be used with the SCR25A module. If 3-wire operation using theTWK351 wire converter is desired, CA10A call switches must be used (CA11A Call-In sw...

SCR25A Call-In Module The SCR25A module can be added to allow the annunciator indicators to light from a simple SPST call-in switch(Bogen model CA17). All call-in switches must go back to the SI or PI on separate lines. It will not allow annun-ciator illumination from parallel connected call-in swit...

SI35A Model Option Enhancements The SI35A has provisions to add up to 2 additional SBA225 switchbanks. Simply remove the blank panels andreplace with a switchbank. Make connections as shown in the diagram below. An auxiliary music source, such as the Bogen CR100A Radio/Cassette Player or TP30D Tuner...

Special Adjustments Gain Adjustments Screwdriver-adjustable INPUT GAIN controls are located on the rear panel for MIC 1, MIC 2, AUX, TEL PAGE,TALK and LISTEN. Set the controls so that signal clipping cannot occur. Proceed as follows: 1. Apply input(s) to the desired channel(s).2. Set the correspondi...

Troubleshooting Guide MCP35A Troubleshooting Procedure If a problem exists on the MCP35A, certain steps should be taken to find the problem. This test relates to theProgram Amplifier (All-Call or Emergency). The first indication of a problem will appear on the three level indi-cators at the front of...

System Specifications Rated Output: Program — 35W RMSIntercom — 20W RMS Frequency Response: Program — +1,-3dB from 80Hz to 15kHzIntercom — Shaped for maximum intelligibility Distortion: Less than 1% at rated power and bandwidthInputs: Two Lo-Z balanced MIC inputs; Hi-Z unbalanced AUX input; Telco Pa...