Simplex 2120 Multiplex Single Channel Voice Communications, General Information

S implex Multiplex Channel Communications Information i987 i Pl XTl OR rderCo G dner 014414001 l 003 electrical power when making any internal servicing be pettormed by qualifted Simplex Representa system disconnect removing power FIRST and AC power When connecting to this system connect AC power FIRST and TO USE THIS PUBLICATION publication Typical equipment configurations are illustrated as are specific equipment on 2120 Multiplex systems equipped with 2001 voice communications 2120 and manual divided into the following sections MAIN EQUIPMENT REMOTE EQUIPMENT CLASS A AUDIO of these sections divided into subheadings covering specific topics This manual intended those who already have a solid background 2120 Multiplex systems 2120 and 2001 voice communications 2001 Voice Communications materials basic information Refer MORE DETAILED to the documents below Voice Communications Wiring Diagrams Systems Troubleshooting Guide Voice Communications Module Descriptions with Voice Communications Multiplex System cabinet drawings 20 and M 2120 ET initiating wiring diagrams drawings manual the specific installation the specific installation W D No 801 529 use 2001 voice communications equipment are configured differently Multiplex systems Since 2120 systems equipped with voice communications to lose the multiplex advantage in the building or complex a special approach because we want voice communications their 2001 of applications a 2120 system set up we don shown major difference 2120 use what we call an audio riser An audio riser is typically a single wire pair that carries an amplified signal to transponder cabinets where the audio signal is applied to FABT or ET speaker circuits via audio boards As you can see in the block diagram most FABT or ET cabinets contain audio relay boards contain an audio interface transformer and a remote amplifier Figure 1 Since we must provide audio signals each building BMUX equipment cabinet contains The SCC cabinet usually close nippled preamp boosts The equipment the BMUX cabinet original audio signal so that the signal can make it to its destinations without voice communication equipment originate system audio the BMUX cabinet contains what we call the power preamp of the SCC cabinet via a harness equipment connected BMUX local BT is used to monitor and control both BMUX and SCC audio equipment conditions look at the various components of a 2120 voice communications starts at the beginning of the audio riser We start where the original audio publication we will use 2001 product you make easier cross reference voice voice RISER IN REU EACH INDIVIDUAL EACH lNDlVlD RELAV TRANBPoNDENB TO FROM I Voice Communications Block Diagram 1 EQUIPMENT section discusses equipment and 2120 equipment voice communications used in the BMUX and SCC cabinets and also the BMUX FIGURE 2 typical BMUX cabinet configuration used in the BMUX cabinet is listed below a 2120 voice communication shown Figure 2 The voice A microphone enclosure assembly 2001 6030 of oscillator control switch module 2001 6039 One of the following preamp monitor modules 2001 6027 used in systems with no backup amplifiers 2001 6029 used in systems with backup amplifiers An audio control module 2001 6005 An optional message player assembly consisting of digital message player 2120 0236 timer 2001 3042 four place card rack 2001 3067 All models prior to March 1967 contain a tape player 2001 6046 than a digital message player 2120 A fire fighter could be used in place of a message player assembly the SCC cabinet The fire fighter phone is described will be mounted Telephone General Information publication both are required the 2120 Multiplex Fire interconnections each voice communications component and the BMUX 3 through 5 illustrate You notice that local BT monitor and control points are used to implement various audio functions preamp as monitoring module We do this so that programs can be written to make the voice communication operate BT control point 1 is used to activate the audio system on alarm a programmed we want For example ALL CIRCUITS switch on the oscillator control switch module or supervising DIGITAL Models prior fo March 1987 a tape player rather than digital message player BMUX Cabinet Configuration 2 OUT WHEN STOP SWITCH IN BYPASS AUDIO DURING STOP WHEN TROUBLE POWER CABINET PREAM ALL ClRCUlTS ACTIVATED BT MONITOR NOTE Only one input needed at each BT monitor point because V a short a BT point OV looks an abnormal BT monitor point 5 STOP ON LOCAL BT I O BOARD Enclosure Assembly 3 MESSA E TAPE ASSEMBLY TIMER COMPLETE SYSTEM HARNESS SYSTEM sIGNAL TO PF CABINET HARI r INTERFACE MUSIC BOARD 24VDC FROM POWER SUPPLY AC VO BOARD 9 N C CONTACT 0 NIO CONTACT 6 NIC CONTACT NIO CONTACT COMMON ET POINT N C CONTACT 3 COMMON 1 NIOCONTACT OF POINT CLOSURE CONTROL POINT 1 V TO AUDIO Control Module 4 OR TAPE TIMER LOCAL BT POINT 1 VIA CONTROL MODULE AUDIO STOP I 24V POWER MESSAGE OR TAPE VIA POINT 2 RESET PLAYER Player Assembly 5 COMMON POWER BMUX VIA I O BOARD TB2