Instruction/ maintenance manual of the product SI35A Bogen
Go to page of 24
Power Intercom Systems Models PI35A & SI35A Installation & Operation Guide.
© 1997 Bogen Communications, Inc. 50 Spring St., Ramsey , NJ 07446 All rights are reserved. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Bogen Communications, Inc.
Contents Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Wiring & Grounding Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Auxiliary Power Receptacle .
Unpacking Y our Bogen equipment was carefully checked before leaving the factory; inspect the shipping container and unit closely for improper handling. If the unit has been damaged, make an immediate claim to the distributor from whom it was purchased.
Introduction Description Bogen Models PI35A and SI35A are 25-station intercom systems (SI35A is expandable to 75 stations). They can provide facilities with two-way communication, emergency paging, time tones and background music or other audio program material to speaker-equipped locations.
MCP35A Control Panel Front Panel 1. CONSOLE MIC - Used as microphone 1 or in conjunction with the emergency page or press-to-talk/release- to-listen (intercom) push-buttons. This mic is always used for two-way intercom calls, using the green button, and emergency paging using the red button.
MCP35A Control Panel Rear V iew 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 installed between the HI and CONS MIC terminals.
SBA225 Speaker Selector Panel Front V iew 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 switch 3.
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.
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 below shows the connection to the back of the SBA225 when using a 4-wire system. Note: Y ou must use Bogen connectors for this connection.
Call-In Switches T wo call-in switches, CA10A and CA1 1A, 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.
Speakers and Speaker Wiring The MCP35A control panel of the SI and PI products is designed to use 25-volt distributed speakers. These speakers have line-matching transformers with various power level taps. 8-ohm speakers or speakers without line-matching transformers cannot be used with the SI and PI products.
Advanced Hook-Ups External Emergency Mic It is possible to use a microphone (Model MBS1000) with a contact closure to make an emergency announce- ment. The TELCO terminal on the back of the MCP35A control panel can be used to remotely trigger an emer- gency page on the system.
The Bogen model T AMB telephone interface module can be used to make a remote page through the telephone system. A Bogen TP-AP Series Interphone can be used to make a remote page. The figure below shows the connec- tion. 14 Note: Jumper J3 on the MCP35A printed circuit board must be set to the TELCO position.
External Booster Amp An external booster amplifier (Bogen Model BP A60) can be connected when the application requires more than 35 watts. Using an external amplifier disconnects the internal 35W amp of the MCP35A. T o install, connect a RCA cable from the MCP35A LINE OUT jack to the Hi-Z input jack on the rear panel of the BP A60 amplifier .
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 the TWK351 wire converter is desired, CA10A call switches must be used (CA1 1A Call-In switches will not work in this application).
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 switches described in the V oice call-in section.
SI35A Model Option Enhancements The SI35A has provisions to add up to 2 additional SBA225 switchbanks. Simply remove the blank panels and replace 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 T uner can also be added to the SI35A.
Special Adjustments Gain Adjustments Screwdriver-adjustable INPUT GAIN controls are located on the rear panel for MIC 1, MIC 2, AUX, TEL P AGE, T ALK and LISTEN. Set the controls so that signal clipping cannot occur . Proceed as follows: 1. Apply input(s) to the desired channel(s).
Internal Jumper Selections Internal jumpers are provided for phantom power (Mic1/Mic2), T elco Page/Mic 2 input selection, monitor speaker muting, and privacy tone defeat. W arning High voltages are present within the MCP35A. The unit should not be operated without covers in place.
T roubleshooting Guide MCP35A T roubleshooting Procedure If a problem exists on the MCP35A, certain steps should be taken to find the problem. This test relates to the Program Amplifier (All-Call or Emergency). The first indication of a problem will appear on the three level indi- cators at the front of the unit.
System Specifications Rated Output: Program — 35W RMS Intercom — 20W RMS Frequency Response: Program — +1,-3dB from 80Hz to 15kHz Intercom — Shaped for maximum intelligibility Distortion: Less.
.
50 Spring Street, Ramsey , NJ 07446, U.S.A. T el: 201-934-8500 Fax: 201-934-9832 web: www .bogen.com.
An important point after buying a device Bogen SI35A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bogen SI35A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bogen SI35A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bogen SI35A you will learn all the available features of the product, as well as information on its operation. The information that you get Bogen SI35A will certainly help you make a decision on the purchase.
If you already are a holder of Bogen SI35A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bogen SI35A.
However, one of the most important roles played by the user manual is to help in solving problems with Bogen SI35A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bogen SI35A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
