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lbi-38715a - c3 maestro console system

1. DESCRIPTION PART NUMBER QTY Figure 1 C3 Maestro Console System USSWICHEE 174 i i i A iN gt 6 20 P SEL 4 SEL ur 20 o7 9 34 LES PA spk 2 j Tout us oo t HT 6 1 0 H UNSEL 2 ur 21 1 1 i UNE D m S ie UNSEL ep urs oro A ISE O E SEL_SUM UI 22 2 7 i i So OPR OUT U 8 OPR SIDETOME OUT UT oo L 0PR RCVR Wi i o SUPR MIC OUT us 22 SUPR MIC OUT ur 23 t PA SPK us 7 ry OPR_SIDETONE OUT 22 Nisccncsuzdsssezumesencdeccemeer dn m i o UNSEL 2 ua 23 3 oo UNSEL 3 8 6 A 1 SEL SUM U8 20 o o i SUPR SIDETOME OUT U8 9 1 OPR MIC OUT U8 21 575 Wath we za aS Qr EY LEN LZ enne EAS i HDSEL 31 i 1 ES gt 620 SER kic Mig our gt gt SPKR 1 gt oo spk 2 SKR 2 elo cope locicedese UNSEL 2 UNSEL 3 SPER 4 OPR SIDETONE OUT SEE MOTE 1 T eiae E p j OPR MIC OUT 01 6 o E REPEATED FOR 1 SUPR MIC O
2. AUDIO TOWER MECHANICAL PARTS BREAKDOWN CONSOLE SYSTEM CONNECTORS eRe Ew EDD wind OPERATING VOLTAGE TEMPERATURE RANGE DIMENSIONS H x W x D Audio Tower Remote Volume Controller Box WEIGHT Audio Tower Remote Volume Controller Box INPUT SPECIFICATIONS Headset Inputs SUPR MIC HI and OPR MIC HI Copyright September 1991 Ericsson GE Mobile Communications Inc SPECIFICATIONS 115 or 230 volts AC selectable 47 63 Hz O F to 75 F 18 6 5 15 2 25 12 13 27 16 8 lbs Inputs for two carbon simulated carbon telephone style headset microphones similar to Plantronics Model HS 0309 1 or equivalent DC bias present 3 Vdc for 50 ohms Boom Gooseneck Microphone Input B G MIC HI Call Director Input CD MIC HI Page Tone Input PAGERINPUT HI Line RJ11 Inputs LINEA LINE B PTT and Sense Inputs Digital Inputs OUTPUT SPECIFICATIONS Line RJ11 Outputs LINE A LINE B Headset Receiver Outputs OPR RCVR and SUPR RCVR HI Speaker Outputs Speaker A and Speaker B Select Recorder Unselect Recorder Output SEL RCDR or USEL RCDR HI Relay Outputs High impedance input for a dynamic microphone similar to Shure Bros Model VR300 Ericsson GE DWG 19C337100 Unbalanced input designed to accept inputs from a call director device
3. 1 HPA 4 NOTE LABELS Of THE JN XX INDICATE A CONNECTION TO THE BACKPLANE CONNECTOR J N PIN XX FOR EXAMPLE 41 44 INDICATES CONNECTION TO BACKPLANE JACK J1 THIS APPLIES TO ALL SUCH REFERENCES SCREW TERMINALS PIN 44 CONSOLE SYSTEM CONNECTIONS 13 ADDENDUM NO 1 TO LBI 38715A PCCR 1 INTRODUCTION This addendum provides details about the C3 Maestro Audio Tower hardware revisions designated as Phase 2 It also provides information on the Call Director CD telephone patch feature 1 1 PHASE 1 AND PHASE 2 The Phase 2 Audio Tower replaces the original Audio Tower which will be referred to as Phase 1 in this document All boards in the tower the Audio Matrix Board the Audio PA Board the I O Board and the Backplane have been revised to support the Call Director telephone patch feature Performance and reliability has also been improved Except for minor changes noted in this document the Phase 2 boards are designed to be backward compatible with Phase 1 boards A revised maintenance manual documenting the Phase 2 hardware will be issued at a later date Contact your service representative for additional information 1 2 CALL DIRECTOR PATCH The CD patch feature allows the Call Director to be patched to specific units talk groups conventional channels and radio patches in the CEC IMC The term patch or patched is
4. ADDENDUM NO 1 TO LBI 38715A boom and gooseneck mic connectors male DB 9 must have pins 2 and 3 jumpered together so the sense circuit will be active when the mic is connected Logic Board V3 0 firmware must be installed to support the hardware sense line 3 1 4 Call Director On Hook Relay 3 1 4 1 Phase 1 The CD on hook relay did not exist 3 1 4 2 Phase 2 A momentary relay contact closure is provided for automatically placing the CD on hook without operator intervention This on hook relay is energized when the console disconnects the CD from the CEC IMC due to operator manual operation or site time out Since most CDs do not have an on hook input use of this relay is optional The relay contacts are available at CD connector J3 on the I O Board see Figure 6 3 1 5 Call Director Interface Transformers 3 1 5 1 Phase 1 One leg of the external side of each transformer was inadvertently grounded resulting in a single ended interface which defeated the purpose of the transformers An in line transformer box was provided to isolate the call director from the Audio Tower s circuit grounds The external Phase 1 CD connections from the I O Board through the Backplane to the Audio Matrix Board are shown in Figure 3 Backplane Audio Matrix Board Board Figure 3 Phase 1 CD Interface Mic and Receive 3 1 5 2 Phase 2 The external sides of both transformers are isolated from groun
5. COMPUTER ENCLOSURE POWER AMPLIFIER PC CARD 5000055000 SPEAKER A QUTPUT VOLUME CONTROL SPEAKER CARD SPEAKER output e 5000058000 g POVER AMP A FEED VOLUME CONTROL INP T CRT pes 4 c pel POWER SUPPLY POWER AMP B FEED pes VOLUME CONTROL TELEPHONE LINE 4 POET TELEPHONE LINE B RJt4 i B 0 VOLUME CONTROL UNIT T FEED POVER rmx D SS c E AMP B 1 1 120VAC 60Hz 200 SYSTEM P29 9030005000 Rev 1 OUTLINE DIAGRAM LBI 38715 OUTLINE DIAGRAM LBI 38715 COMPONENT SIDE J3 INPLIT DUTPLIT 14 ess A a 6 sELECT bi e RECORDER L i en J2 9 PAGE INPUT PAGE PTT e 4 5 9 Ri a O 0 S cau 5 CT 9 DIRECTOR 1 2 O SEE 1071 E MOV C 5 uc s B G PTT Q 5 J5 Q g a MON PTT d 9 OL e S 29 3700119000 Rev 1 0 2 Y P29 3700119000 Rev 1 0 E sa eso 40 ey 8 t og SOLDER SIDE F 9 org IN 1 9 9 a 89 ell ors IN 2 29 el PT ell rear HE 103 1 AY 1 allo ales RELAY 2 _ Ho ns E 2 I1 S8 9 S Ql ary lt IU il 9 L 7 o t I Li IVOM O et P 120 240 VAC 00000000 2
6. From the keyboard type the command X6741 and press the Enter key You should hear a tone in the speaker controlled by the right most vol ume control knob Adjust the volume up and down When you have determined that both the input and the speaker work satisfactorily type the com mand X6740 and press the Enter key The tone should stop LINE A to Speaker A Type the following commands making sure to press the Enter key after each command X6771 7771 8731 You should hear a tone in the speaker controlled by the left most volume knob Adjust the volume up and down When you have determined that both the input and the speaker work satisfactorily type the fol lowing commands making sure to press the Enter key after each command X6770 7770 8731 You have just tested the Line input and switched it to both speakers You have also tested 1 amplifiers on the PA Board 2 The VCB and its cabling 3 The PC with a Logic Board and its ability to control the switches on the Matrix Board LINE B To Speaker B Remove the RJ11 plug from the top jack on the PA Board and insert it into the other jack Type the command X6641 and press the Enter key You should hear a tone in the speaker controlled by the right most vol ume knob Adjust the volume up and down When you have determined that both the input and the speaker work satisfactorily type the com mand X6640 a
7. This is the input to the matrix If no signal is detected the problem is in the backplane or its sockets If signal is present connect the scope lead to U6 pin 14 There should be no signal present From the PC keyboard type the command X6641 and press the Enter key Signal should now be present If no signal is seen the matrix is not working or the cable from the PC to the Audio Tower is defective With or without signal the system is not func tional Repeat the procedure with a known func tional cable and PC system If the problem is still present the decoder logic or address lines of the Matrix Board are defective The problem may be with the backplane LINE B To Speaker A Power down the Audio Tower Remove the PA Board from the board cage Verify that the jumpers on the PA Board are in the A position If they are not set them in the A position and return to the regular test procedure to test again Insert the PA Extender Board into the PA Board slot Insert the PA Board into the connector on the edge of the PA Extender Board Powerup the Audio Tower Using the oscilloscope observe the signal at BR6 pins 1 and 3 If no signal is present the problem is probably the RJ11 jack or the plug If signal is present trace it from beginning to end until the problem is found Check for signal at 010 pins 12 and 13 If no signal is found the problem is in bridge BR2 T2 or the resis
8. contact is normally open and remains energized for approximately 1 2 seconds This value is fixed in the Logic Board firmware and cannot be changed Relay contact ratings are 0 6 A 125 Vac 0 6 A 110 Vdc 2 0 A 30 Vdc Signal ground for dry contact sense lines 6 1 2 Audio PA Board 2 To CIM On Hook Relay optional Table 9 describes the audio signals between the Audio Tower s Audio PA Board 2 and the CIM within the CEC IMC The descriptions are relative to the Audio Tower These signals are interfaced via 600 ohm balanced lines and they have typical levels of 0 dBm TABLE 9 AUDIO PA BOARD 2 TO CIM SIGNAL DESCRIPTIONS USE Patched Radio Radio audio from CIM TX channel 4 This audio is heard by the telephone CD Operator Mic Telephone operator mic audio to CIM RX channel 4 This audio is heard by a radio 17 ADDENDUM NO 1 TO LBI 38715A PCCR 6 2 SIGNAL INTERCONNECTIONS 6 2 1 I O Board To Call Director Audio Tower to CD wiring should be included in a single cable that terminates at the Audio Tower in a male DB 9 connector Since the connections at the CD vary according to manufacturer and model no specific pin outs are provided in the drawing below The signal names at the CD will not necessarily be the same as those used in this document It is left to the end user to determine the proper connections at the CD based on the previous descriptions given On Hook Relay Contacts optional Hands
9. section Required tools Oscilloscope DVM Audio signal source test leads Complete PC with Logic Board Complete Audio Tower with I O Board Matrix Board and PA Board installed Complete VCB CTEST test software diskette Matrix Extender Board PA Ex tender Board Setup procedure Assemble and cable the Audio Tower and PC as de scribed in the Cabling section Cable the VCB to the Audio Tower Cable the speakers to the removable screw terminals on the PA Board and install the screw terminals to the PA Board Powerupthe Audio Tower andthen power up the PC When the PC has finished booting up insert the CTEST software diskette into the diskette drive and close the latch From the PC keyboard type the command LBI 38715 LBI 38715 Console Logic Board detected A CTEST and press the lt Enter gt key A complete screen should appear which displays the following message at the top of the screen version You are now ready to test the functionality of the complete system Test procedures 1 LINE A to Speaker B Using an RJ11 plug and the audio signal source input a measured 2 2 volt 0 1 peak to peak 1 kHz sine wave into pins 2 and 5 of the 6 pin plug Insert the plug into the top jack on the PA Board Measure and adjust the level of the signal as the PA Board places a 600 ohm load on its inputs Adjust both volume controls on the VCB to the midpoint
10. SENSE SUPR RCYR LO CONNECTOR DB9 SUPR MHz HI E FEMA TOR OPR LO P7 o1 o 2 DESK PIT J2 46 9 3 Lb o o a MON PTT 12 49 214 E 5 DESK MIC HI gt one ee DESK MIC LO ols CONNECTOR DES FEMALE HI 1 ADDR PO gt O 35 ADOR 2 PO a 2 sri ADDR 1 PC gt o MOM FTT gt 3 on za ADOR 2 PC A et OY al ADDR 3 SUPR SENSE gt 23 ADDR 3 gt o 5 o 24 4D0R 4 PC Ol S TADDR 5 m CD SENSE PC o9 zs 5 gt 7 CD HOOKSEMSE PC gt oH SEL 92448 O zs SEL i PC o 3 DIG NZ PC OH 2a SEL 2 PC c PA DIGIN1 Po gt oHa sE 3 PG DIGIN2 PO gt 11 30 DATA PC HERVIR 12 PA DIGIN3 FG gt ROBE Did DIGINS PO gt 32 PWR_STAT PG gt 14 O 35 ONE 1s Pa DIGING PC 0734 1SUPR PIT PC gt vu gt ge PIT Pc gt PTT PWR gt CONNECTOR 0A37 FEMALE PA BOARD SPKR A SCREW TERMINALS SPEAKER 2 gt SPEAKER VOLUME CONTROLLER PS gt RMT POTA gt CONNECTOR DBS FEMALE RELAY 1 SCREW TERMINALS RELAY 2 LINE A RJti1 1 2 Li 3 A EA 5 6 8511 Jack fut 1 2 LINE B iN CINE B OUT LINE amp B IN gt Ri JACK LBI 38715
11. The level of the paging tone has been reduced by approximately 16 dB below the other audio signals summed to the headsets and speakers This reduction value is fixed but it provides a more pleasing level to the operator 3 2 BOARD The following changes were made to the I O Board Addition of the CD on hook relay contacts Footswitch connectors now match standard C3 Modular Desktop footswitch connections e Relay 1 and Relay 2 connectors are correct All unused connections to the Backplane Board are no longer grounded The Phase 2 I O Board is required for the Call Director patch feature 3 2 1 CD On Hook Relay 3 2 1 1 Phase 1 The on hook relay did not exist Connector J3 pin 6 carried the CD PTT signal and pin 1 was not used 3 2 1 2 Phase 2 Signal lines to carry the call director on hook relay contacts from the Backplane Board to connector J3 have been added Pin 1 and pin 6 carry the relay contacts Figure 6 shows the pin out of J3 on the Phase 2 I O Board ADDENDUM NO 1 TO LBI 38715A On Hook Relay Contacts Handset Jack Sense Off Hook Sense Ground To Call Director CD Mic balanced line CD Receiver balanced line 6 2 3 4 5 9 7 8 c Co Figure 6 I O Board Call Director Connector J3 3 2 2 Footswitch Connectors 3 2 2 1 Phase 1 The PTT and MONITOR connections for FOOTSWITCH 1 and FOOTSWITCH 2 were reversed A single footswitch would activate the MONITOR signal whe
12. cage with six 6 screws Leave the screws just loose enough to slightly slide the Backplane 2 Insert an Audio PA Board into the far right card slot Seat the edge connector firmly in the Backplane connector Minor lateral positioning of the Backplane may be necessary to make this connection 3 Insert a second Audio PA Board adjacent to the first board Seat the edge connector firmly in the Backplane connector Minor lateral positioning of the Backplane may be necessary to make this connection 10 ADDENDUM NO 1 TO LBI 38715A 4 Remove the shorting plug from JP1 on the Audio Matrix Board and place shorting plug back on one of the header pins for storage Remove the shorting plug from JP2 on the Audio Matrix Board and place shorting plug back on one of the header pins storage 5 Insert the Phase 2 Audio Matrix Board into the correct position in the card cage Seat the Audio Matrix Board edge connector firmly in the Backplane connector Minor lateral positioning of the Backplane may be necessary to make this connection 6 Insert the Phase 2 I O Board into the correct position in the card cage Seat the edge connector firmly in the Backplane connector Minor lateral positioning of the Backplane may be necessary to make this connection 7 Tighten the front panel screws on all four 4 boards 8 Tighten the six 6 screws on the Backplane 9 Attach the power plugs to the Backplane connectors J5BP and J6BP 10 Attach
13. connector did not change 3 3 BOARD The following changes were made to the Audio PA Board e maximum audio output selection DIP switch was added Audio source jumpers JP1 and JP2 were replaced with DIP switches 3 3 1 Audio Output Switches These switches SW1 are new to Phase 2 and provide a method to limit the maximum audio output from each speaker power amplifier Levels of 5 watts recommended or 8 watts are available See Table 6 and Figure 10 for details The switches have no effect on headset outputs 3 3 2 Audio Source Switches These switches SW2 and their Phase 1 jumper counterparts are provided for testing The audio source for each speaker power amplifier can be selected to be either the corresponding Line Input or the Audio Matrix Board The Audio Matrix Board source is the normal selection but the Line Input selection can be used to test the entire Audio PA Board by bypassing the Audio Matrix Board The Line Input is fed directly into the power amplifier See Table 7 and Figure 11 for details 3 4 BACKPLANE BOARD The following changes were made to the Backplane Board e Signal lines to carry the call director on hook relay contacts were added The previously grounded legs of both CD interface transformers were added as isolated signals e Criss crossed Line B Out and Line D Out signals were fixed These signals were not used in Phase 1 Audio Towers The Phase 2 Backplane is required for the Call Director
14. level control ALC for the inputs indicated in Table 4 Enable ALC by setting the appropriate switch to its ON position TABLE 4 AUDIO MATRIX BOARD ALC SWITCH SW1 SW1 POSITION INPUT SIGNAL OPERATOR HEADSET MIC SUPERVISOR HEADSET MIC 3 Turn off power and remove the extender board to restore the system to the standard setup 13 ADDENDUM NO 1 TO LBI 38715A PCCR 5 3 2 Phase 2 Audio PA Board 1 With the Audio PA Board connected to the Backplane via an extender board and the Maestro system in operation the potentiometers indicated in Table 5 may be adjusted to achieve desired operation levels for the line A and line B signals TABLE 5 AUDIO PA BOARD LINE A AND B ADJUSTMENTS SIGNAL POTENTIOMETER TEST POINT 2 DIP switch SWI allows selection of the maximum power level available to the speakers Set the switches to the desired output level Table 6 shows the switch settings that apply to the corresponding speakers Figure 10 shows the default switch settings low power TABLE 6 AUDIO PA BOARD MAXIMUM SPEAKER POWER LEVEL SELECTION SWI MAX OUTPUT POSITION Watts AS Figure 10 Switch SW1 Maximum Speaker Output Settings Default 3 switch SW2 allows selection of the audio sources feeding the speakers The switches should be set to the default positions source Audio Matrix Board shown in Figure 11 Table 7 shows the switch settings to select the audio source 14 ADDENDUM NO 1 TO
15. mic was not supported by hardware If a headset was plugged in or unplugged the Logic Board s firmware would switch the microphone between the headset mic or the default desk mic software based method was utilized where the C3 Maestro would set a boom gooseneck mic bit in a Logic Board DPRAM options byte and the firmware would check the bit before switching to the desk mic If the bit was set it would switch to the boom gooseneck mic The Maestro read the bit from CONFIG DAT which was set with the Editor program see LBI 39056 It was desirable to have direct hardware sense support and eliminate the indirect support via the Editor program 3 1 3 2 Phase 2 The unused Phase 1 CD PTT input has been changed to a boom gooseneck sense input in the Phase 2 hardware The Logic Board now has a direct hardware input to read to determine if a boom or gooseneck mic is connected A connected boom gooseneck mic will take priority over the default desk mic when a headset is unplugged or not sensed The EDITOR CONFIG DAT option bit method has been removed from the Maestro V3 0 Editor program Existing Audio Matrix Boards Rev 2 0 Rev G may be modified to duplicate the sense circuit so they will be compatible with Logic Board V3 0 firmware See section 4 1 for specific modification instructions Figure 2 shows the pin out of the Phase 2 boom gooseneck mic connector J4 Ground Sense PTT Mic Lo Mic Hi Figure 2 Boom Gooseneck Mic Connector J4
16. similar to Plant Equipment Model 3780 L1 TT 010 Unbalanced input designed to accept inputs from a tone source Two balanced 2 wire inputs designed to receive voice bandwidth and analog audio from a conventional 4 wire 600 ohm twisted pair transmission system Inputs used for detection of dry contact switch closures of the type found in common push to talk microphones foot switches and headset jacks Generic digital inputs designed to allow signaling to the com puter via the Logic Board from external hardware Two balanced 2 wire outputs designed to transmit voice band width and analog audio to a conventional 4 wire 600 ohm twisted pair transmission system Analog audio outputs for two telephone style headset earphones similar to Plantronics Model HS0309 1 or equivalent Audio power amplifier outputs designed to drive compatible speakers 3 2 16 ohm to room filling audio levels Unbalanced audio output designed to connect to the audio input of a recording device Outputs consisting of a single pair of dry relay contacts iso lated from all other signals or ground potential LBI 38715 SYSTEM DESCRIPTION The Ericsson GE C3 Maestro Console System is a dispatch console system which provides common dispatcher features on a PC AT platform A display on the PC s video monitor replaces the conventional array of controls A cabi net the Audio Tower contains the switching system A remote Volume Controller
17. the LED plugs to connector J7BP located at the bottom of the Backplane 11 Attach the front snap on panel 12 Attach the external cables to the I O Audio PA and Audio Matrix Board 13 Close the rear door of the Audio Tower and lock it 14 Re connect and switch on power to the PC and the Audio Tower 15 After PC has booted run the Maestro software application 5 3 ALIGNMENT PROCEDURES NOTE The Phase 2 Matrix and PA boards have been aligned at the factory for typical operating conditions Further adjustment is not recommended unless a non typical signal level is present in the field situation 5 3 1 Phase 2 Audio Matrix Board 1 With the Audio Matrix Board connected to the Backplane via an Audio Matrix Board extender board and the Maestro system in operation the potentiometers indicated in Table 3 may be adjusted to achieve desired operating levels for the corresponding signals Figure 9 indicates the positions of the potentiometers 11 ADDENDUM NO 1 TO LBI 38715A TABLE 3 AUDIO MATRIX BOARD wo w Adjustment not recommended 12 ADDENDUM NO 1 TO LBI 38715A R204 pz R219 Figure 9 Audio Matrix Board Potentiometer And SW1 Locations 2 Switch SW unmarked DIP switch is used to enable disable automatic
18. used to convey the CD is connected to the CEC IMC This is derived from phone patch The term radio patch shall be used to mean a collection of interconnected radio talk groups The CD to radio patch operates independently of the normal operator to radio communications Using the CD interface the operator is only required to connect the CD with the target entity After that no other operator intervention is required until the CD to radio connection must be disconnected The audio connections between the CD and the CEC IMC are done inside the C3 Maestro Audio Tower as controlled by the Logic Board within the computer The console application program has minimal involvement in the control of audio switching CALL CEC IMC DIRECTOR Figure 1 Basic Call Director Audio Routing The terms incoming outgoing inbound and outbound shall be referenced from the console Unless otherwise noted all audio and signal descriptions are referenced from the Audio Tower Message trunked calls are used to perform the patch operation The console uses a secondary LID for the patch channel requests thus allowing CD patch operation to work separately from and concurrently with the normal operator to radio communication From the standpoint of the radio user the patch will appear to operate the same as a telephone interconnect call 2 PART NUMBERS 2 1 TOWER AND BOARD ASSEMBLIES Part numbers for the new Phase 2 Audio Tower and board assemblies a
19. 090209000 1 g 10 LOCK ASSEMBLY 6090258000 A 9 REAR DOOR 6090210000 1 8 FILLER PANEL ASSEMBLY 6090282000 7 INPUT OUTPUT CARD ASSEMBLY 5000057000 6 POWER AMPLIFIER CARD ASSEMBY 5000055000 5 AUDIO MATRIX CARD ASSEMBLY 5000056000 4 HINGE 6090304000 2 3 VERTICAL PANEL 6090283000 1 2 CARD CAGE 6090224000 1 1 FRAME BASE ASSEMBLY ITEM DESCRIPTION PART NUMBER QTY OPTIONAL 2ND POWER AMPLIFIER CARD AUDIO TOWER P29 9030002000 Sh 1 Rev 1 LBI 38715 O BOARD UNSELECT RECORDER SELECT RECORDER PAGE INPUT PAGE PTT RIGHT SWITCH COMMON LEFT SWITCH rl 1 z SUNSEL RCDR HI J1 3 2 Jii 3 4 SEL RCOR Hi 41 5 SEL ROCR to 44 1 sT2 1 2 1 9 2 PAGER INPUT CC 41 1 gt 14 44 E 44 1 CALL DIRECTOR CONNECTOR DB9 FEMALE CD MIC LO J1 32 FOOT SWITCH 1 FOOT SWITCH 2 DESK Mic FOQOTSWITOH FOOTSWITCH P1 P2 RIGHT SWITCH COMMON LEFT SWITCH CONNECTOR Ong FEMALE Sts 1 iO DIGING 41 35 PIN 218 19 DICIN1 31 36 DIG IN 2 3 _ DIGIN2 44 37 4 DniGiN2 J1 38 STS 3 1 VO Ki a gt 41 44 FEAT 2 2 J1 43 a CIO K2 gt 4 48 RELAY 2 4 4 Ta KT ERIS CONNECTOR 089 FEMALE SUPERVISOR HEADSET OPERATOR HEADSET DESK MIC B G MIC COMPUTER SCHEMATIC DIAGRAM MATRIX BOAR SUPR PTT SUPR_
20. 0B A FUSE 2 5 1 25A VOLUME CONTROLLER AUDIO TOWER REAR PANEL P29 9030007000 Rev 1 SPREADER BOARD P29 3700119000 Rev 1 0 P29 3700119000 Rev 1 0 8 LBI 38715 SCHEMATIC DIAGRAM AUX 15 YDC OUTPUT 15 YDC FROM BACKPLANE DB9 FEMALE DB9 FEMALE DB15 FEMALE NOTE J3 CONNECTS VIA A 9 PIN CABLE TO PA BOARD 2 J2 CONNECTS VIA 9 PIN CABLE TO PA BOARD 1 CONNECTS VIA 15 PIN CABLE TO THE REMOYE YOLUME CONTROLLER J4 15 A REMOVABLE SCREW TERMINAL 44 SUPPLIES 15 YDC TO POWER EXTERNAL EQUIPMENT J5 IS THE 15 FROM THE BACKPLANE TO SUPPLY J4 Ri 15 A 5 OHM THERMAL FUSE HEATS UP ON OYERLOAD AND INCREASES ITS RESISTANCE SHUTTING DOWN THE OYERLOAD WHEN THE OYERLOAD IS CORRECTED WILL COOL AND REDUCE ITS RESISTANCE TO 5 OHMS THIS WILL EFFECTIVELY RESET THE FUSE DBI5 PIN FUNCTION DB15 PIN FUNCTION 1 GND 9 15 YDC 2 VOL CONTROL 5 10 YOL CONTROL 6 20 GONTROL 4 YOL CONTROL 2 3 VE CT 2 13 YOL CONTROL 12 E donen lisa YOL CONTROL 10 15 YOL CONTROL 9 8 GND ONLY YOLUME CONTROL CIRCUITS 1 2 3 AND 4 ARE ENABLED IN THIS CHASSIS LED SPREADER BOARD PARTS LIST SPREADER BOARD P29 5000064000 Revised August 28 1991 Revision 1 0 ITEM QUANTITY REFERENCE PART 1 2 J3 J2 DB9 FEMALE 2 1 J1 DB15 FEMALE 2 1 J4 WEIDMULLER 12593 6 BL4 4 1 J5 AMP 641964 1 5 1
21. 2 LINE BOUT CD DISP MIC 2 WIRES CD RECEIVER 1 0 CD CD MIC 2 WIRES CONTROL 5 WIRES Figure 12 Basic Equipment Interconnection with CD Patch SELECT MIC UNSELECT 2 LINE C UNSELECT 1 CIM CHAN 4 CD PATCH AUDIO LINE D Figure 13 Audio PA Board LINE Connectors 16 ADDENDUM NO 1 TO LBI 38715A PCCR 6 1 SIGNAL DESCRIPTIONS 6 1 1 I O Board To Call Director Table 8 describes the various signals between the Audio Tower s I O Board and the Call Director The descriptions are relative to the Audio Tower TABLE 8 I O BOARD TO CALL DIRECTOR SIGNAL DESCRIPTIONS Handset Jack Sense Active low when a handset is plugged into the CD This handset overrides all audio optional connections to the Audio Tower The operator talks directly to the phone via the handset instead of using the console s headset or mic speaker Dry contact Off Hook Sense Active low when the CD is placed off hook Dry contact Radio operator mic audio to the CD telephone receiver This audio is heard by CD Receiver the telephone 600 ohm balanced output 45 dBm to 20 dBm typically 25 dBm Audio from the CD telephone mic This audio is heard by a radio in patch operation or by operator headset in normal operation 600 ohm balanced input 37 dBm to 8 dBm typically 25 dBm Normally open dry contact Closure generated when the console disconnects the CD from the CEC IMC Used to put CD on hook if an input exists The relay
22. 30 PA DIGINZ PC J2 49 PA DIGIN4 Pc 42 42 MON PTT J2 49 44 18 CD JACKSENSE 4 PTT 41 20 5 e 13 a POWER FROM POWER SUPPLY q i 1 pw 7 HEIGHTS OF CONNECTORS WITHIN POVER LOR LED ROE 8 m J8 BACKPLANE ARE DIFFERENT ENS POWER TO SPREADER BOARD mum AUXILIARY CONNECTOR MATRIX 32 TO PREVENT INSERTING CARDS INTO INCORRECT SLOTS PA 1 PA 2 1 J3 J4 3 po sh A T 6 15 v J3 33 34 LINE B IN LINE A IN J3 27 28 404452020004 4 fa 221277 EL a v 1 a UNE F IN 11 UNE E IN d REN E Pho a MES 91 IOCARD UNE J IN H5 LINE IN i hn i a o 0 10 5 55 wu LINE t IN 47 LINE K IN 13 1 3 J4 35 36 LINE D OUT 19113 LIME OUT J3 29 30 Y 5 RLvOUT1 42 54 RLYOUT3 J2 650 a a J2 35 36G LINE B OUT 21 UNE OUT J4 29 32 RLYOUT2 2 58 l1 HN RLYOUT4 J2 56 8 18 ram J3 23 24 PA SPK 1 23 PA SPK 2 J3 21 22 0 9 1 9 UNSEL RODA J2 31 J44 23 24 UNSELZ 25 UNSEL 3 J4 21 22 22 21 2 J2 23 22 21 UNSEL3 42 25 SEL RCDR HI J2 33 a 41 23 CD HOOKSENSE 27 84002000038 PA BPK 1 J2 24 4 23 UNSELZ J2 26 4 124 E UMP M ETE 4 i PAGER INPUT HI 42 32 126 a e Ji 9 PAGER INPUT HI 31 UNSEL RCDR Hl J1 3 LINE IN 12 7 NY LINE C IN 2 PAGER 22 50 129 a 128 a a 35 J2 29 CD MIC HI 1 3
23. 30 hidden msdos sys MS DOS V3 30 hidden Directories DOS MS DOS V3 30 CONSOLE UTIL Autoexec bat Contents of the AUTOEXEC BAT file are path c dos c util prompt p g cd console conkey console Config sys Contents of the CONFIG SYS file are Files 20 Buffers 25 device c dos ansi sys Contents of the CONSOLE directory will be supplied by Ericsson GE to Vendor with each release of the C3 Maestro Console software Vendor will ensure that the newest release of the C3 Maestro console software in their possession will be placed on each unit delivered Contents of the console directory are altkbd dat config dat conkey com console exe editor exe entity dat font33 dat shift dat UTIL Directory Contents of the UTIL directory should be empty EPROMS Files In addition to files located on the DG Dasher 386SX 20 hard drive a CLB HEX file is required to program the EPROM located on the Console Logic Board This file will be supplied by Ericsson GE to vendor with each release of CLB firmware Vendor will ensure that the newest release CLB firmware in their possession will be placed on each unit deliv ered Furthermore the CLB firmware release number and checksum must be properly located on the EPROM labels supplied by Ericsson GE SYSTEM TEST Listed below are test procedures for a complete C3 Maes tro Console system In case of problems refer to the same item number in the PROBLEM RESOLUTION
24. 7 IO DIGIN2 37 DiGIN1 J1 35 A 34 33 LINE a J2 i 42 48 OD JACKSENSE 18 C 5 76 aj pci cH J3 45 42 PA DIGIN2 PA DIGIN1 PC J3 39 40 35 UNE OUT 22 22 35 UT J2 29 12 47 err 20 CD RCVR 22 34 i ss sh B DESK PTT J2 46 44 43 44 J1 11 PAGER ag d9 MON PTT 41 26 46 45 46 2 45 B G FTT MON PTT J2 49 45 AS 46 45 RLYOUTS 51 RLYOUT 48 4 48 72 49 MON FTT 471 m j SE ds aj id las i Cu ah Y4 17 18 RLYOUTS 55 55 RLYOUTE DiGIN1 DIGIN1 42 3 343 17 18 RLYOUT2 57 KO DIGIM IO DIGIN2 2 38 59 mLvouTe 1 RLYOUT12 53 RLYOUTIa 44 15 56 RLYOUTS 41 44 O K1 41 43 0 42 52 IO K1 A B 42 65 41 46 10 K2 66 RLYOUT11 42 66 IO K2 A K2 B J2 64 gt 41 45 iO K2 67 RYLOUTS LABELS OF THE TYPE JH XX OR JH XX YY IHDICATE COHHECTIOH TO BACKPLAHE COHHECTOR J W PINS OR XX AND YY FOR EXAMPLE J2 23 INDICATES A CONNECTION TO BACKPLANE CONNECTOR J2 23 J3 23 24 INDICATES CONNECTION BACKPLAHE COHHECTOR J3 PIHS 23 AHD 24 BACKPLANE 11 LBI 38715 MECHANICAL PARTS BREAKDOWN LBI 38715 w g 13 OVERLAY GE MOBILE COMMUNICATIONS 614088000 2 12 SIDE PANEL 6090208000 2 11 FRONT DOOR ASSEMBLY 6
25. Box VCB enables the dis patcher to control the output volume levels directed to the speakers see Figure 1 The C3 Maestro enables the dispatcher to use headsets microphones and a variety of external inputs It supports 600 ohm balanced audio inputs and outputs The C3 Maestro allows operation with 2 headsets an operator headset and a supervisor headset The C3 Maestro also allows the use of 2 microphones a desk microphone and a boom or gooseneck microphone Software and jack sense circuitry determine which of the inputs are active Push to talk PTT capability is provided either in the headset jack microphone jack screw terminal jack or an internal VOX for Call Director The C3 Maestro also provides for 2 normally open relay contacts NO and 2 digital inputs on each active circuit board This results in a total of 6 relay contacts and 6 digital inputs on a 4 speaker system Recorder outputs are provided for use with external recorders The C3 Maestro consists of aPC with a Logic Board a video monitor adispatcher keyboard Audio Tower aremote Volume Controller Box aset of speakers The C3 Maestro Audio Tower contains uptotwoPA Boards in 4 speaker system the Matrix Board the I O Board The remote Volume Controller Box contains the Volume Controller Board The following is a detailed description of how the C3 Maestro main components work together The C3 Maestro is a complet
26. LBI 38715A TABLE 7 AUDIO PA BOARD AUDIO SOURCE SELECTION SW2 POSITION x either position Figure 11 SW2 Default Selection Settings 4 Turn power off and remove the extender board to restore the system to the standard setup 6 CD ELECTRICAL INTERCONNECTIONS The CD to CEC IMC interconnections via the Audio Tower require a second Audio PA Board in the Audio Tower Also a 4 wire CD audio line between this Audio PA Board and the console s CIM within the CEC IMC is required Figure 12 shows the basic equipment interconnection with all CD patch hardware installed The number of conductors required for the patch related cables is shown See section 6 2 SIGNAL INTERCONNECTIONS for wiring details Both Audio PA Boards will have the same LINE A IN OUT and LINE B IN OUT labels LINE A and LINE B labels on the second Audio PA Board are considered as LINE C and LINE D respectively Figure 13 shows the locations of the various LINE connectors Both Audio PA Boards will have the same SPKR A and SPKR B labels SPKR A and SPKR B labels on the second Audio PA Board are considered as SPKR C and SPKR D respectively 15 ADDENDUM NO 1 TO LBI 38715A CUSTOM DISPLAY KEYBOARD LOGIC BOARD PC E RS 232 3 WIRES KEYBOARD RS 422 4 WIRES CIM CONTROLLER BOARD MATRIX LINE A IN SELECT 2 WIRES PA 1 LINEA OUT MIC 2 WIRES LINE B IN UNSELECT 2 WIRES LINE B IN PATCHED RADIO 2 WIRES PA
27. LBI 38715A Mobile Communications C3 MAESTRO CONSOLE SYSTEM TABLE OF CONTENTS AUDIO PA BOARD LBI 38716 MATRIX BOARD LBI 38717 VOBOARD huder ite A OY LBI 38718 VOLUME CONTROLLER BOX LBI 38719 LOGIC BOARD LBI 38720 Maintenance Manual ERICSSON Z Ericsson GE Mobile Communications Inc Mountain View Road Lynchburg Virginia 24502 Printed in U S A 38715 LBI 38715 Desk Microphone Input TABLE OF CONTENTS DESK MIC HI Input for an electret type microphone similar to Ericsson GE DWG 19C851086P10 11 DC bias present 3 5 Vdc for 1000 SPECIFICATIONS arenas ed phat SYSTEM DESCRIPTION riit 36 e HG E A A am RAG e C3 MAESTRO Console System Figure 1 System I O Diagram Figure 2 OPERATING PROCEDURES Bude oaks ete ahs Personal Computer PC Audio Tower Controls al 3o doge b ee es Bek Using The System SPREADER BOARD CONSOLE PROGRAM INSTALLATION DATA SYSTEM 5 PROBLEM RESOLUTION GLOSSARY OF ACRONYMS SYSTEM INTERCONNECTION DIAGRAM AUDIO TOWER REARPANEL SPREADER BOARD OUTLINE SPREADER BOARD 5 SPREADER BOARD PARTS LIST BACKPLANEPARTS LIST BACKPLANEOUTLINE BACKPLANE SCHEMATIC
28. PA Board Add Add Line D In to CIM TX4 CIM out wiring if not already present Er NE Line D Out to RX4 in wiring 5 1 EXTRACTING PHASE 1 BOARDS 1 Turm off the power switches on the PC and the Audio Tower and disconnect power Unlock and open the Audio Tower rear access door Wear an anti static strap from this point in the procedure forward Remove all cables connected to boards in the Audio Tower Loosen screws on the I O Board and pull the board from the Audio Tower by the ejector handles Qv the Audio Matrix Board in an anti static bag Loosen screws on the Audio Matrix Board and pull the board from the Audio Tower by the ejector handles Place 7 Loosen screws on the Audio PA Board and pull the board from the Audio Tower by the ejector handles Place the Audio PA Board in an anti static bag 8 Ifthe system has a second Audio PA Board pull the board from the Audio Tower by the ejector handles Place the second Audio PA Board in an anti static bag Otherwise loosen screws on the Filler Panel and remove it from the Audio Tower 9 Remove the front snap on cover of the Audio Tower 10 Disconnect the LED plug from J7 on the Backplane 11 Disconnect the power plugs from J5 and J6 on the Backplane 12 Remove the six 6 screws from the Backplane and remove the Backplane from the Audio Tower 5 2 INSTALLATION OF PHASE 2 BOARDS 1 Attach the Phase 2 Backplane to the card
29. R1 PTC KEYSTONE KC0055 ND 6 1 R2 820 Ohms 7 1 LED1 LED ALL RESISTORS 1 4 WATT 10 CARBON UNLESS NOTED BACKPLANE P29 500058000 Revised August 26 1991 Revision 1 0 ITEM QUANTITY REFERENCE PART 1 3 J1 J3 J4 AMP102567 6 2 1 J2 AMP1 102692 4 3 2 J6 J5 AMP 641964 1 4 2 J7 J8 AMP 640456 2 5 2 R1 R2820 Ohms 6 1 PCS 7 1 2 FOOT CABLE AMP 350777 1 BACKPLANE TO POWER SUPPLY 8 1 2 FOOT CABLE AMP 640440 2 BACKPLANE TO FRONT LED 9 1 POWER SUPPLY CONDOR GPC80 15 10 1 LED ON FRONT CABINET 11 1 2 FOOT CABLE TO AMP350777 1 TO SPREADER BOARD AMP350777 1 12 1 POWER RECEPTACLE FUSED 13 1 POWER SWITCH ALL RESISTORS 1 4 WATT 10 CARBON UNLESS NOTED LBI 38715 LBI 38715 OUTLINE DIAGRAM LBI 38715 COMPONENT SIDE SOLDER SIDE ASSY 5000058000 0008200008 YeeA paad fate 1 Y b y Y T mA E AA WN WON Je at 1 13 14 et Et 1 1 n it 1 T T 1 Fii eS IA 1 1 E et 1 1 bd 18 e P29 3700114000 Rev 1 0 P29 3700114000 Rev 1 0 P29 3700114000 Rev 1 0 P29 3700114000 Rev 1 0 BACKPLANE 10 LBI 38715 SCHEMATIC DIAGRAM LBI 38715 J 4 41 42 PA DIGIN4 PC 4 PA DIGINS J4 39 40 Lj e CD HOOKSENSE 42 2RB PA DIGING PC 43 8 DIGING PC 39 DICIN1 PC J2 39 F B G PTT 12 45 PA DIGINS PC 2 41 SE les 44 27 DESK PTT 45 B G PTT 41
30. T IS BEING ANALYZED ANI THEN USE THE FOLLOWING CHART U1 CONTROLS SIGNALS FOR LINE A OUT U2 CONTROLS SIGNALS FOR LINE B OUT US CONTROLS SIGNALS FOR LINE C OUT Figure 2 System I O Diagram This diagram shows the possible audio paths in the system OPERATING PROCEDURES The following procedures are condensed instructions intended for use when installing the C3 Maestro Refer to the Operator s Manual for more detailed operating instruc tions CABLING The following links must be established to install the C3 Maestro properly PC to Audio Tower PC to dispatcher keyboard PC to CEC Audio Tower to VCB Audio Tower to Speakers Audio Tower to Mic A Audio Tower to Footswitch Internal cables are provided for the PA Board to SPREADER BOARD link The following are detailed instructions for cabling the C3 Maestro Refer to the System Interconnection Diagram and Audio Tower Rear Panel Diagram PERSONAL COMPUTER PC Connect the PC video board to the video monitor using the video monitor to computer cable Connect the PC keyboard to the standard keyboard jack on the back of the PC The Logic Board which has a DB37 jack and a 4 pin jack for the dispatcher keyboard is installed as an expansion board in one of the ISA expansion slots in the PC Connect the DB cable to the DB37 jack Plug the 4 pin connector from the dispatcher keyboard into the 4 pin jack on the Logic Board Note that the connector
31. UT ui 23 o 11 Li LINE B OUT PAGE UT T SUPR SUPR OUT oro 1 LINE OUT 1 SUPR SIDETONE OUT TONE ur22 o ep us oo E 5 QUT SEL 91 21 a 11 SPK 2 U7 3 o 11 1 fa 1 F DESK DESK UNSEL 2 01 20 2 7 i UNSEL 3 U5 20 yo H Eu ee Ne alow LP Lum Cis A AAA DE SNA BIG A lt 2 CD co PAGER INPUT PAGE H cp US T p i i TONE 9PR OUT ai o 1_ UNSEL RCDR gt y SUPR OUT 5 6 2 72 i PA SPK 1 UNSEL 2 UNSEL 3 LIME gt SUM E H LINE J IN gt Y SUM 1 1 SUM LL LINE gt L iN gt gt SEL SUM E IN E IN 2 opr MIC i SUM gt i G IN gt SUPR MIC OUT o l gt i TONE oo H ii sa LINE OUT o o B OUT E i LINE C OUT ifs 06 16 F oo ET To LINE D OUT roo 1 p o 1 be nn c E 1 LABELS OF THE TYPE UX Y INDICATE THAT CROSSPOINT SWITCH CHIP U X CONTAINS THE SWITCH CONTROLLING THIS FUNCTION AND THAT THE INPUT IS PIN Y NOTE 1 LABELS OF THE U INDICATE THAT Ut U2 OR US CONTROL THE SIGNALS DEPENDING ON PUT IS BEING DRIVEN THE INPUT SIGNALS ARE COMMON TO THE SAME pr 1 U2 US AND U4 TO DETERMINE WHICH IC CONTROLS THE INPUTS DETERMINE WHICH OUTPU
32. at U9 pin 8 the problem is not on the input side of the PA Board Check for signal at US pin 4 If signal is found check for signal at US pin 5 If no signal is found the problem may be with the VCB or the cable to it Check for DC voltage at US pin 1 If the voltage is less than 1 volt DC even with the volume controls at maximum the problem is in the VCB or its cables and connectors If DC is present U5 may be defective If signal is found check for signal at U8 pin 3 Check U8 pin 1 This is the final input to the amplifier If signal is found there either the amplifiers are defective or the speakers and their leads are suspect If no signal was found at US pin 4 power down the Audio Tower Remove the PA Board and the PA Extender Board from the board cage Replace the PA Board in its slot Remove the Matrix Board and place the Matrix Extender Board in its slot Insert the Matrix Board into the connector on the edge of the Matrix Extender Board Power up the Audio Tower Connect the oscilloscope ground lead to any ground on the Matrix Board Look for signal at U6 pin 20 This is the input to the matrix If no signal is detected the problem is in the back plane or its sockets If signal is present connect the scope lead to U6 pin 11 There should be no signal present From the PC keyboard type the command X6771 and press the Enter key Signal should now be present If no signal is seen the
33. controlled pots which can be set via commands from the Logic Board From new software in the Maestro V3 0 application the Logic Board can be commanded to vary the sidetone level Operator and supervisor sidetone levels are stored in the user profile of each setup The Maestro application reads the values from SETUPS DAT at startup and sends commands to the Logic Board to set the pots to those values The user adjusts the operator sidetone level using the lt Alt gt Vol Up and Alt Vol Down keys The supervisor sidetone cannot be adjusted from the application It is set via the Editor program by editing the user profile and setting the Sup Sidetone field to a value between 0 255 See LBI 39056 for specific details ADDENDUM NO 1 TO LBI 38715A PCCR 3 1 7 Boom Gooseneck Mic Gain 3 1 7 1 Phase 1 Gain was not always sufficient to provide enough mic level for the dispatcher to be heard clearly For sufficient transmit audio level an input of approximately 20 mV peak to peak was required 3 1 7 2 Phase 2 The gain has been increased Typical input is now 7 mV peak to peak at an average voice level 3 1 8 Paging Tone Level 3 1 8 1 Phase 1 The paging tone was summed at the same level as all other audio signals routed to the headset and speakers This caused the tones to be heard at an unpleasant level for most console operators There was no way to reduce the tone relative to the other audio signals 3 1 8 2 Phase 2
34. d resulting in a balanced interface The transformer box is no longer required if the Phase 2 revisions of both the Audio Matrix Board and I O Board are used If only a Phase 2 Audio Matrix Board is used two jumpers JP1 JP2 one for each transformer are provided to ground one leg of the transformers for backwards compatibility with the Phase 1 I O Board The external CD connections from the I O Board across the Backplane to the Audio Matrix Board and the grounding jumpers as implemented in Phase 2 are shown in Figure 4 ADDENDUM NO 1 TO LBI 38715A Backplane Audio Matrix Board gt Board Figure 4 Phase 2 CD Interface Mic and Receive Figure 5 shows the locations of JP1 and JP2 near Backplane Board connector J6 at the rear of the Audio Matrix Board The jumpers should be removed if a Phase 2 I O Board is used If a Phase 1 I O Board is used the jumpers should be inserted If a call director is not attached to the Audio Tower the placement of the jumpers is insignificant JP1 E LA Transformer JP2 a Figure 5 CD Transformer Jumper Locations 3 1 6 Headset Sidetone Pots 3 1 6 1 Phase 1 Operator and supervisor headset sidetone levels were controlled by manual pots The levels were set by placing the Audio Matrix Board on an extender board and manually adjusting the pots No other level adjustment method was provided 3 1 6 2 Phase 2 The manual pots have been replaced with digitally
35. e dispatching system de signed to be connected to Ericsson GE PST Trunking sys tems The PC is connected to the Central Electronic Controller CEC by an RS 232 communications line The PC has a specialized program which enables the dispatcher to monitor and control a large number of radio links The PC s video monitor displays graphic repre sentations of the radio links which are currently being con trolled by the dispatcher Through the use of the keyboard PC hardware and PC software the dispatcher can issue commands to the Audio Tower which interconnects the appropriate signal lines AII signal interfaces and switching logic are housed in the Audio Tower The Audio Tower controls the C3 Maestro audio lines and the VCB In most cases ther Logic Board will make audio switching decisions without PC intervention The PC controls the Audio Tower s functions through the 37 pin control cable which provides a parallel interface Switching signals are sent through the control cable only when an event such as PTT occurs Other than PTT and the VU meter DC voltage the control cable is idle most of the time In addition the electronics in the Audio Tower generate no clock signals and contain on oscillators Therefore the C3 Maestro will not be a source of signals to be received by other equipment When in use the Central Electronics Controller CEC sends information over the communications link to the PC about calls that are currentl
36. e taken to avoid connecting a magnetic microphone to the wrong jack otherwise damage may occur to the microphone If you have an electret type Desktop Microphone con nect it to the jack marked Desk Mic on the Matrix Board Headset connections for Operator and Supervisor are also provided on the Matrix Board Please refer to the wiring diagram in the Maintenance Section to verify correct con nections before attempting to connect these devices LBI 38715 LBI 38715 To use an adapter box which converts an Audio Tower DB9 headset connection to a Bantam jack box please consult vendor information before connecting headsets Footswitches used to enable specific PTT and monitor functions may be connected at the I O Board Consult the wiring diagram in the Maintenance Section to verify connec tions before using them Removable screw terminals are provided for Select and Unselect recorder connections Removable screw terminals are also provided for the B G PTT and Desk PTT circuits You can use these terminals instead of the DB9 Footswitch jacks 1f desired since the terminals are wired directly to the connections in the respective DB9 Footswitch jacks To use a Paging encoder input connect it to the remov able screw terminals provided To use a Call Director in put output consult the wiring diagram in the Maintenance Section and use the DB9 connector provided on the I O Board NOTE Use of a call director may re
37. et Jack Sense optional Off Hook Sense Ground To I O Board Call Director J3 CD Mike amp WDD CD Receiver 00 DB 9 Male Figure 14 CD To I O Board DB 9 Wiring NOTE Some existing call director installations have an in line transformer box installed between the CD and J3 The box may be removed and the DB 9 from the CD going into the box s cable can be plugged directly into J3 Audio Matrix Board jumpers JP1 and JP2 must be removed if the transformer box is removed One jumper is located just above each of the two transformers near the Backplane connector See section 3 1 5 for additional details 6 2 2 Audio PA Board 2 To CIM On the second Audio PA Board 2 the LINE A IN OUT connections physically become LINE C IN OUT and the LINE B IN OUT connections physically become LINE D IN OUT Since the CEC IMC is using RX4 TX4 for CD audio the console uses the Audio Tower s LINE D IN and LINE D OUT connections to keep CD connections to a fourth channel on all hardware This allows the console to use CIM RX3 for Unselect Speaker 2 connected to LINE C IN labeled LINE A IN on Audio PA Board 2 Install two 2 pairs of audio cables between the CEC IMC CIM Audio Board and Audio PA Board 2 in the Audio Tower Terminate the Audio PA Board s connection with an RJ 11 connector The RJ 11 pin outs are shown in Figure 15 Due to the distances involved shielded cable is recommended for these interconnecti
38. exceptions 1 footswitch connector PTT and Monitor connections are reversed See section 3 2 2 Footswitch Connectors for specific details 2 The relay that follows console PTT is available as Relay 1 on the Phase 2 I O Board Unmodified Phase 1 I O Boards had these PTT relay contacts available as Relay 2 4 3 PA BOARD The Phase 2 Audio PA Board is fully compatible with the Phase 1 Audio Tower Also the Phase 1 Audio PA Board is fully compatible with the Phase 2 Tower 4 4 BACKPLANE BOARD The Phase 2 Backplane Board is fully compatible with the Phase 1 Audio Tower 5 UPGRADING The following instructions detail the upgrading of an existing Phase 1 Audio Tower to Phase 2 This would be required if Call Director patch was being added to the system Table 2 summarizes the items that must be added or replaced in existing Phase 1 console configurations to implement Call Director patch The Logic Board in the PC does not have to be changed however the firmware may need to be updated CD patch requires Logic Board firmware 344A4245G10 or later firmware ADDENDUM NO 1 TO LBI 38715A TABLE 2 HARDWARE ADDITIONS AND REPLACEMENTS REQUIRED FOR CALL DIRECTOR PATCH EXISTING Phase 1 CONSOLE CONFIGURATION 2 Speakers 4 Speakers without CD i without CD Call Director Phase 1 Audio Matrix Board I O Board Replace Replace Replace Replace and Backplane Board with Phase 2 Rev A or later boards a second Audio
39. in bridge BR1 or the resistors between them Connect the ground lead to ground on the board Check for signal at U9 pin 14 Then check for signal at U9 pin 8 If signal is found at U9 pin 8 the problem is not on the input side of the PA Board Check for signal at U5 pin 13 If signal is found check for signal at U5 pin 12 If no signal is found the problem may be with the VCB Box or the cable to it Check for DC voltage at U5 pin 16 If the voltage is less than 1 volt DC even with the volume controls at maximum the problem is in the VCB or its cables and connectors If DC is present U5 may be defective If signal is found check for signal at U8 pin 12 Check US pin 14 This is the final input to the amplifier If signal is found there either the amplifiers are defective or the speakers and their leads are suspect If no signal was found at U5 pin 13 power down the Audio Tower Remove the PA Board and the PA Extender Board from the board cage Replace the PA Board in its slot Remove the Matrix Board and place the Matrix Exten der Board in its slot Insert the Matrix Board into the connector on the edge of the Matrix Extender Board Power up the Audio Tower Connect the Oscilloscope ground lead to any ground on the Matrix Board Look for signal at U6 pin 20 This is the input to the matrix If no signal is detected the problem is in the back plane or its sockets If signalis present connect the sc
40. inals for the speakers that are located on the PA Board and connect the speaker wires to the terminals Reconnect the screw terminals to the PA Board route the speaker leads to the correct location and connect the leads to the appropriate speaker Select or Unselect The upper pair of terminals is for the Select channel and the lower pair of terminals is for Unselect Speakers are normally located with one speaker on each side of the video monitor for ease of use Connect the DB15 cable to the back of the VCB The VCB may be located under the video monitor or anywhere else that is convenient Route the other end of the DB15 cable as needed and connect it to the DB15 jack labeled Volume Controller on the back of the Audio Tower Con nect the 12 DB9 cable from the DB9 jack labeled Volume on the first PA Board adjacent to the Matrix Board to the bottom DB9 jack labeled A on the back of the Audio Tower If you have a second PA Board its PA Vol ume DB9 is cabled to the top DB9 connector labeled B on the back of the Audio Tower For the CEC remote audio input output connections use the RJ11 jacks on the Board The top RJ11 jack labeled Line B is for the Unselect audio in and out Consult the wiring diagram in the Maintenance Section to verify connections within the RJ11 plug To use a Boom Gooseneck or other dynamic micro phone connect it to the DB9 jack marked B G MIC on the Matrix Board Care must b
41. is keyed The red dot on the 4 pin jack should be aligned with the red dot on the 4 pin cable plug The 4 pin cable plug will latch in place To remove the 4 pin cable pull on the sleeve Pulling on the 4 pin cable will not free the latch and may damage the cable if excessive force is used Connect the CEC cable to the COMI port on the mother board of the PC Make the appropriate connection and fasten all connectors in place Internal wiring of this DB 25 connector will determine whether RS 232 or RS 422 1s used for the link AC power cables for both the video monitor and the PC are provided Connect the AC power cables to their respec LBI 38715 tive connectors located on the rear chassis but do not con nect them to the mains power at this point AUDIO TOWER Verify that the circuit boards are installed properly From the back of the Audio Tower with the door open you can see the boards in the board cage From left to right they are the I O Board the Matrix Board the PA Board and a blank panel There will be an additional PA Board in place of the blank panel if the console is configured for 4 speakers The backplane connectors are designed to prevent boards from being inserted into incorrect slots Verify that all boards are installed properly and that the screws holding them in place are completely tightened Connect the DB37 cable from the PC to the DB37 jack on the Matrix Board Disconnect the removable screw term
42. keyboard type the command 7771 and press the Enter key There should now be signal present If no signal is seen U7 may be defective If signal 18 seen move the scope lead to U8 pin 20 There should be signal present Move the scope lead to U8 pin 15 There should be no signal From the PC keyboard type the command X8731 and press the Enter key There should be signal now If no signal is seen US may be defective If signal is seen there may be a problem with the back plane LBI 38715 GLOSSARY OF ACRONYMS INTERCONNECTION DIAGRAM LBI 38715 B G Boom Gooseneck CEC Central Electronics Controller DIP Dual In Line Package DPRAM Dual Port Ram DVM Digital Voltmeter Input Output PC Personal Computer STOVER ENCLOSURE Se 2220 e PCB Printed Circuit Board UNSELECT p ee BACKPLANE CARO PAGE INPUT pci PAGE j PTT Push To Talk CALL DIRECTOR F i PTT 51N IN VCB Volume Controller Box NN FOOTSWITCH 1 amp 2 IN DIGITAL IMPUT 1 F SYSTEM KEYBOARD VOX Voice Operated Switch DIGITAL 28 NO Normally Open CEU KEYBOARD Normally Closed SUPERVISOR HEADSET INPUT pes MATES PCCARO OPERATOR HEADSET INPUT 0 DESK MIC INPUT O i I BCCM GOOSENECK MIC INPUT c ef LOGIC INTERFACE PC BOARD COMPUTER INTERCONNECT CABLE B37
43. matrix is not working or the cable from the PC to the Audio Tower is defective If signal 1s present connect the scope lead to U7 pin 20 There should be signal present Connect the scope lead to U7 pin 11 There should be no signal present From the PC keyboard type the command 7771 and press the Enter key There should be signal present Connect the scope lead to U8 pin 20 There should be signal present Connect the scope lead to 1 8 pin 15 There should be no signal present From the PC keyboard type the command X8731 and press the Enter key There should be signal present With or without signal the system is not func tional Repeat the procedure with a known functional cable and PC system If the problem is still present the decoder logic or address lines of the Matrix Board is defective The problem may be with the backplane LINE B To Speaker B Power down the Audio Tower Remove the PA Board from the board cage Verify that the jumpers on the PA Board are in the A position If they are not set them in the A position and return to the regular test pro cedure to test again Insert the PA Extender Board into the PA Board slot Insert the PA Board into the connector on the edge of the PA Extender Board Power up the Audio Tower Using the oscilloscope observe the signal at BR6 pins 1 and 3 If no signal is present the problem is probably the RJ11 jack or the plug If signal is pre
44. n message is displayed If this occurs check the PC to CEC cable Note the large clock display in the lower right corner Also note the 2 rows of 7 modules These modules represent the entities groups units etc that the dispatcher may program into the console Consult the USER S MANUAL for module programming instructions Using the dispatcher keyboard the dispatcher can Se lect the desired module The Select entity is then high lighted on the video monitor and any audio received is sent to the Select speaker Other audio received is sent to the Unselect speaker Each speaker has its own volume control on the VCB Microphones or Headset footswitches connected to the Audio Tower have their audio signals routed to the correct channel when their respective PTT is activated When a channel is granted the video monitor is updated to reflect the PTT s active status SPREADER BOARD The Spreader Board is basically a Y cable adapter It merges the signals from the PA board s into a single DB15 cable and connects to the Remote Volume Controller Addi tionally it has a power jack to supply 15 Vdc for external devices and a LED which indicates that the chassis is pow ered up CONSOLE PROGRAM INSTALLATION DATA SOFTWARE INSTALLATION The DG Dasher 3865 20 should be set up with the following directories and files Subdirectory C Files autoexec bat config sys command com MS DOS V3 30 io sys MSW DOS V3
45. n pressed Single footswitches had to be rewired so the corresponding Audio Tower PTT pin was used Many dual footswitches were wired with their connections reversed Therefore these dual footswitches worked correctly with the reversed Audio Tower connections 3 2 2 2 Phase 2 The new I O Board has pin 6 as PTT and pin 4 as MONITOR on both footswitch connectors as shown in Figure 7 This is consistent with C3 Modular Desktop consoles which are used as the standard Ground Monitor PTT Figure 7 Phase 2 I O Board Footswitch Connectors J5 And J6 If a Phase 2 I O Board is inserted into the Audio Tower users with footswitches that operate with Phase 1 I O Boards must rewire the footswitch DB 9 connectors to conform to the Phase 2 pin outs This can be done by reversing pins 4 and 6 in the connector or by placing an in line adapter between the I O Board and the footswitch to reverse the signals Figure 8 shows a simple schematic of an adapter ADDENDUM NO 1 TO LBI 38715A Female DB 9 Male DB 9 Figure 8 Footswitch Adapter 3 2 3 Relay Connections 3 2 3 1 Phase 1 The contacts for Relay 1 were actually available at the connector J8 or ST5 labeled RELAY 2 and the contacts for Relay 2 were never available 3 2 3 2 Phase 2 With a Phase 2 I O Board both sets of relay contacts are available at connector J8 Relay 1 is the relay that follows console PTTs Relay 2 is reserved for future use The pin out of the
46. nd press the Enter key The tone should stop Type the following commands making sure to press the Enter key after each command X6671 7771 8371 You should hear a tone in the speaker controlled by the left most volume knob Adjust the volume up and down When you have determined that both the input and the speaker work satisfactorily type the fol lowing commands making sure to press the Enter key after each command X6670 7770 8730 The tone should stop You have just tested the LINE B input and switched it to both speakers This completes the system test PROBLEM RESOLUTION Use the following procedures for problem resolution 1 Power down the Audio Tower Remove the PA Board from the board cage Verify that the jumpers on the PA Board are in the A position If they are not set them in the A position and return to the regular test pro cedure to test again Insert the PA Extender Board into the PA Board slot Insert the PA Board into the connector on the edge of the PA Extender Board Power up the Audio Tower Using the oscilloscope observe the signal at BRS pins 1 and 3 If no signal is present the problem is probably with the RJ11 jack or the plug If the signal is present trace it from beginning to end until the problem is found Check for signal at U9 pin 12 13 If no signal is found the problem is
47. ons between the Audio Tower and the CEC IMC 18 ADDENDUM NO 1 TO LBI 38715A NOT USED To CIM TX 4 balanced line Board 2 Line B Line D CIM RX 4 balanced line NOT USED Figure 15 Audio PA Board 2 To CIM RJ 11 Wiring 6 3 CONSOLE CONFIGURATION The C3 Maestro console must be properly configured to support Call Director patch This configuration is set at the CEC IMC Manager MOM PC and sent via the CIM to the console If the configuration is not valid the console will reject attempts to patch to the CD 6 3 1 Audio Slots The CEC IMC Manager s System Audio Configuration for Console Audio Slots must be set to four 4 for each console that is equipped with CD patch 6 3 2 Hardware The following procedure must be executed at the CEC IMC Manager for each console that uses CD patch 1 From the Main Menu access Console Configuration then Console Hardware Configuration 2 Set Console Number to the number of the target console 3 Set Phone Configuration to b CD 4 Set Call Director ID to an unused LID Each Call Director ID must be unique i e not used by any radio or console This LID must be programmed or reserved in the System Manager 5 Set Number of PA Boards to two 2 6 Press F5 to save the configuration to disk 7 Press F7 to send the configuration to the target console 19
48. ope lead to U6 pin 14 There should be no signal present From the PC keyboard type the command X6741 and press the Enter key Signal should now be present If no signal is seen the matrix is not working or the cable from the PC to the Audio Tower is defective In either case the system is not functional Repeat the procedure with a known functional cable and PC system If the problem is still present the decoder logic or address lines of the Matrix Board are defective The problem may be with the backplane LINE A To Speaker A Power down the Audio Tower Remove the PA Board from the board cage Verify that the jumpers on the PA Board are in the A position If they are not set them in the A position and return to the regular test pro cedure to test again Insert the PA Extender Board into the PA Board slot Insert the PA Board into the connector on the edge of the PA Extender Board Powerup the Audio Tower Using the oscilloscope observe the signal at BRS pins 1 and 3 If no signal is present the problem is probably the RJ11 jack or the plug If signal is present trace it from beginning to end until the problem is found Check for signal at U9 pin 12 13 If no signal is found the problem is in bridge BR1 or the resistors between them Connect the ground lead to ground on the board Check for signal at U9 pin 14 Check for signal at U9 pin 8 If signal is found
49. or audio with line inputs for conversation monitoring e Supervisor headset mic to call director e Boom gooseneck sense e Call director on hook relay The following circuits have been changed e CD interface transformers are isolated Headset sidetone levels are controlled by digital pots Boom gooseneck mic gain increased Paging tone level to speakers and headsets reduced The Phase 2 Audio Matrix Board is required for the Call Director patch feature 3 1 1 Summing Of Incoming CD Audio 3 1 1 1 Phase 1 Incoming CD audio summation did not exist ADDENDUM NO 1 TO LBI 38715A 3 1 1 2 2 Incoming CD audio may be summed with incoming select or unselect radio audio so that both sides of a CD patch conversation can be monitored by the dispatcher 3 1 2 Supervisor Headset Mic To CD 3 1 2 1 Phase 1 The supervisor headphone could not be connected to the CD input via the Audio Matrix Board s audio switches A modification was made by adding a resistor that connected the headphone to the CD when the operator headset was plugged in However the supervisor headset mic could not be connected to the CD output 3 1 2 2 Phase 2 The supervisor headset is properly connected to both the CD input and output via the Audio Matrix Board s audio switches when the headset is plugged in It is not affected by the operator headset 3 1 3 Boom Gooseneck Mic Sense 3 1 3 1 Phase 1 The sensing of a boom or gooseneck
50. patch feature ADDENDUM NO 1 TO LBI 38715A 4 COMPATIBILITY Phase 2 boards were designed to provide the maximum amount of backwards compatibility with existing Phase 1 Audio Towers in the event that they are used as replacement parts The incompatibilities that do exist can be worked around with external connector wiring changes or Logic Board firmware updates 4 1 AUDIO MATRIX BOARD The Phase 2 Audio Matrix Board is fully backwards compatible for use in a Phase 1 Audio Tower with the following exceptions 1 If a Call Director is being used one leg of the primary side of each of the CD interface transformers must be grounded by jumpering JP1 and JP2 Also the in line transformer box must be used See section 3 1 5 for details 2 supervisor headset mic to unselect recorder connection is not supported using Logic Board V2 11 or earlier firmware This connection is supported by using Logic Board V3 0 firmware 3 If a boom gooseneck mic is used with the Audio Tower the following modifications must be made if the Audio Matrix Board is a Phase 1 board and the Logic Board is equipped with 344A4245G10 or later firmware e remove QI disconnects VOX output e jumper P8 pin 3 to the collector of Q1 connects new boom gooseneck sense input to CD PTT e jumper P8 pin 1 to P8 pin 2 grounds pin 2 4 2 BOARD The Phase 2 I O Board is fully backwards compatible for use in a Phase 1 Audio Tower with the following
51. quire use of external transformers in line with the call director I O AII matrix board revisions require external in line transform ers Connect the power cable to the Audio Tower but do not connect it to line power yet CONTROLS The On Off switch is the only control device on the Audio Tower A LED power indicator on the front panel and also on the back panel indicate that the Audio Tower is on The PC has a single On Off switch as does the video monitor USING THE SYSTEM With all of the separate components correctly cabled connect the power cables to AC power mains Set the volume controls on the VCB at midpoint Power up the Audio Tower first to ensure that it is ready to receive the initialization commands from the PC Next power up the PC NOTE The CCS software must already be loaded onto the PC for the system to function Please refer to the Installation Manual for instructions on loading the C3 Maestro software onto the PC After a few seconds you should hear a short tone in the Select speaker The tone signals that the PC software Logic Board Matrix Board PA Board and all links are working If you do not hear the tone check the volume controls and cycle the power to the PC off and on As the software on the PC initializes a second tone will be heard and a partitioned screen appears on the video monitor If communications cannot be established between the PC and the CEC a COMM ERROR CIM Link Dow
52. re shown in Table 1 With the exception of the Audio PA Board the Call Director patch feature requires all Phase 2 boards Phase 1 Audio PA Boards P29 500005500 any revision may be used in an Audio Tower that supports CD patch ADDENDUM NO 1 TO LBI 38715A TABLE 1 PHASE 2 AUDIO TOWER ASSEMBLIES ASSEMBLY PART NUMBER REVISION 2 Speaker Audio Tower 29 7720033000 4 Speaker Audio Tower P29 7720033001 i Initial Revision A board s part number and revision can be checked by removing it from the Audio Tower and verifying the vendor part number specified in the table above Vendor parts are not marked with the 29 part number prefix All Phase 1 boards have P29 50000xx00x part numbers 22 UPGRADE KITS An upgrade kit is available for upgrading Phase 1 C3 Maestro 4 speaker consoles to CD Patch capability Each kit includes new Phase 2 Audio Matrix I O and Backplane Boards Order CD Patch Upgrade Kit P29 7720034000 from Ericsson GE Service Parts Two speaker Phase 1 consoles must be upgraded to 4 speaker consoles before the Call Director patch upgrade is performed To upgrade a Phase 1 C3 Maestro 2 speaker console to a 4 speaker console order option number CRFK1B 3 PHASE 1 TO PHASE 2 HARDWARE CHANGES 3 1 AUDIO MATRIX BOARD The following circuits have been eliminated in the Phase 2 Audio Matrix Board e CD VOX e CDPTT The following circuits have been added e Summing of incoming call direct
53. sent trace it from beginning to end until the problem is found Check for signal at U10 pins 12 and 13 If no signal is found the problem is in bridge BR2 T2 or the resistors between them Connect the ground lead to ground on the board Check for signal at U10 pin 14 Check for signal at UlO pin 8 If signal is found at U10 pin 8 the problem is not on the input side of the PA Board Check for signal at U5 pin 13 If signal is found check for signal at US pin 12 If no signal is found the problem may be with the VCB or the cable to it Check for DC voltage at U5 pin 16 If the voltage is less than 1 volt DC even with the volume controls at maximum the problem is in the VCB or its cables and connectors If DC is present U5 may be defective If signal is found check for signal at U8 pin 12 Check U8 pin 14 This is the final input to the amplifier If signal is found there either the amplifiers are defective or the speakers and their leads are suspect If no signal was found at U5 pin 13 power down the Audio Tower Remove the PA Board and the PA Extender Board from the board cage Replace the PA Board in its slot Remove the Matrix Board and place the Matrix Extender Board in its slot Insert the Matrix Board into the connector on the edge of the Matrix Extender Board Powerup the Audio Tower Connect the Oscilloscope ground lead to any ground on the Matrix Board Look for signal at U6 pin 9
54. tors between them Connect the ground lead to ground on the board Check for signal at U10 pin 14 Check for signal at U10 pin 8 If signal is found at U10 pin 8 the problem is not on the PA Board Power down the Audio Tower LBI 38715 Remove the PA Board and the PA Extender Board from the board cage Replace the PA Board in its slot Remove the Matrix Board and place the Matrix Extender Board in its slot Insert the Matrix Board into the connector on the edge of the Matrix Extender Board Power up the Audio Tower Connect the Oscilloscope ground lead to any ground on the Matrix Board Look for signal at U6 pin 9 This is the input to the matrix If no signal is detected the problem is in the backplane or its sockets If signal is present connect the scope lead to U6 pin 11 There should be no signal present From the PC keyboard type the command X6671 and press the Enter key Signal should now be present If no signal is seen the matrix is not working or the cable from the PC to the Audio Tower is defective With or without signal the system is not func tional Repeat the procedure with a known func tional cable and PC system If the problem is still present the decoder logic or address lines of the Matrix Board are defective If signal is seen move the scope lead to U7 pin 20 Signal should be present Move the scope lead to U7 pin 11 There should be no signal present From the PC
55. y active The PC updates its video monitor to reflect the status of active links The Audio Tower sends any PTT or jack sense information to the PC The PC sends PTT request information to the CEC The CEC then routes the incoming audio from the Audio Tower to the appropriate channel When the Audio Tower detects a change in jack sense information it selects the appropriate microphone and speaker headset input outputs via the matrix switches with out need for PC intervention Normally audio from the CEC consists of 2 channels Select and Unselect The Select audio channel is asso ciated with the dispatchers primary or selected group The Unselect audio channel receives audio from the dis patcher s unselected groups The VCB contains the volume controls for the speakers connected to the Audio Tower Normally there are two vol ume controls one Select and one Unselect 11 NOTE FURNITURE NOT SUPPLIED AS PART OF SYSTEM 15 13 12 INTERFACE CABLES 5050006000 11 FOOTSWITCH 19 337094 4 10 OPERATOR SUPERVISOR HEADSET JACKS 19470576261 LOUDSPEAKER 3660011000 DESK MICROPHONE GOOSENECK MICROPHONE 19B235093G1 PC KEYBOARD SYSTEM KEYBOARD 7590148000 VOLUME CONTROL BOX 5050008000 CRT MONITOR jo COMPUTER 505009000 AUDIO TOWER UNIT 5050011000

lbi-38715a - c3 maestro console system

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