Fixed Station Terminal – FST 5000 Series
Contents
1. 22617 VERSION 1 1 COMMERCIAL IN CONFIDENCE 2 3 Fixed Station Terminal FST 5050 This model is a no frills version with similar RF amp electrical characteristics as the FST 5020 2A but with no external audio inputs and outputs The mains power cable is hard wired This model also includes a 10 5Ah internal lead acid battery mounted on the internal mounting bracket and a battery isolation switch on the rear panel The battery isolation switch should be turned to the ON CHARGE position whenever the FST is connected to mains power or when you require the FST to run on battery power Whenever the FST is to be stored turn the switch to the OFF position 2 1 7 1 1 i 1 1 2 designe exe OFF U INTERNAL FIXED STATION TERMINAL olny tens STATION ees MM enna u a MAMMA 5 N designe SIDE VIEW FRONT VIEW REAR VIEW Enclosure dimensions including feet 280mm x 235mm x 270mm H x W x D Please Note The battery isolation switch should be turned to the ON CHARGE position whenever the FST 15 EI connected to mains power when you require the _ FST to on battery power Whenever the FST 15 a BATTERY to be decommissioned amp stored turn the switch to e the OFF position ON CHARGE FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 9 Ma2. FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 42 May 2012 FST 5000 Series Installation amp Service Manual G 05164G 2u2 16V 56k BRIDGE R41 OR NON BGE 56k BRIDGE RSS OR NON BGE 56k BRIDGE R69 OR NON BGE 2u2 16V 56k BRIDGE R83 OR NON BGE VERSION 1 1 COMMERCIAL IN CONFIDENCE USA TDA2003 cis R29 220n cii 220R 470 16V C19 2u2 16V BRIDGE U7A 2003 C27 R43 220n c25 220R 470u 16V C33 2u2 16V BRIDGE USA TDA2003 RS 220n C39 2208 470u 16V 2u2 16V BRIDGE ULLA 4 TDA2003 css 220n css 220R 47Ou 16V C61 2u2 16V BRIDGE Version 1 1 Page 43 Circuit Diagram PC 5041 sheet 4C Amplifiers Schematic 10004 16V R30 220R 1000u 16V R44 220R 1000u 16V RSS 220R TN RE eR RE 1000u 16V BRIDGE 20 R36 R37 220n 220R 220R BRIDGE C21 BRIDGE BRIDGE 4704 16V BRIDGE R39 22R BRIDGE 10004 16V BRIDGE C34 RSO RS1 220n 220R 220R BRIDGE C35 BRIDGE BRIDGE 4704 16V BRIDGE RSS 22R BRIDGE 1000u 16V BRIDGE c48 R64 R6S 220n 220R 220R BRIDGE C49 BRIDGE BRIDGE 470u 16V BRIDGE 22R BRIDGE U12A TDA2003 BRIDGE 4 10004 16V BRIDGE c62 R78 R79 220n 220R 220R BRIDGE C63 BRIDGE BRIDGE 470u 16V BRIDGE T 2944777721 R40 OR NON BGE T8 2944777721 RS4 OR NON BGE BRIDGE BRIDGE T9 2944777721 R68 OR NON BGE csi 470n BRIDGE
3. FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 34 May 2012 RNY 4 Qu lt se y a 1 F d p d We e 4 1 FU d Fi E T i a RIT 2 he a a a designing the future i i 1 i Syt E r gt t d a E j E VERSION 1 1 COMMERCIAL IN CONFIDENCE BOARD LEVEL TESTS FST 5020 2A Equipment required True RMS multimeter Oscilloscope CRO Tektronix TDS 220 Sine wave Oscillator set to IKHz 430mV P P 13 5 Vdc power supply 8 Ohm load Assorted leads adapters eg DB9 male or RJ 45 with flying leads 6 35mm Stereo plug with flying leads Desk Mic Foot Pedal PTT Headset Switch with fly leads test LED set to illuminate at 12V with leads 4k7 560R 47k axial 0W25 resistors 4 x 3 9R 5W resistors Test Prerequisites setup All pots 10 set to Minimum Connect Headset Desk Mic and PTT pedal Connect Scope earth to convenient ground ve power supply Power applied to FST at PL9 Expected result Check if incorrect Observe LED 2 Illuminates Illuminated Trace Voltage from PL9 through D1 amp 2 to VS Voltage at Pin 1 PL12 5020 Voltage present Trace Voltage from PL9 through D1 amp 2 to VS Check voltages at PL10 External 330 350mV lower than supply Check D1 Batt Connector or
4. z GROUND CHAN ACT PTT MONITO AUX MIC IGNITION v H z GROUND CHAN ACT MONITOR AUX MIC IGNITION VNVIOGNE DB9R RFEM P3030 TO SUB BORRD PC USTIB SMALL BORRD D ouo o OQOODOOODOOOOOO U x gt a o m 2 05 2X13GSL7 o 4 N POWER IN FROM SUPPLY ADJUST TO 13 8V BOX 3 DESIGN TWO THOUSAND PTY LTD PHONE 9758 5933 3042 FAX 9758 5560 Jesten 2000 9 11 ROSE ST UPPER FERNTREE GULLY MELBOURNE VICTORIA AUSTRALIA pe bee Geter sy sgad 2041 Version 1 1 Page 41 PTT RX FILT AUDIO 2 16 RX FILT AUDIO 21 R 22 23 25 1 13 16 1 22 23 25 SHEET 4A OF VERSION 1 1 COMMERCIAL IN CONFIDENCE Circuit Diagram PC 5041 sheet 4B Audio E amp M Schematic 100k LOG9IR A 10u SOV BP IS CH gt cs 220n RV2 100k LOG9R A T2 42 21 MON BUF gt cog 2 13 ca 220n V 2 ee i 3 100k LOG RZA 10k Riil BALANCED AUDIO R24 TS 22k 2944777721 3V3 3V3 OW4 FS R17 LM348 ove 1 RR OV OVA D Sron 2088 DESIGN THO THOUSAND PTY LTD PHONE 9758 5933 3042 FAX 9758 5560 MOTOROLA I 0 HUB ESIGN 9 11 ROSE ST UPPER FERNTREE GULLY MELBOURNE VICTORIA AUSTRALIA ems s ser AB INITIAL IPi 20051003 P OF 1 IP REVISIONIDRNITSS1 DAIE AY 244
5. ae Aux Microphone Ignition Sense 025 12 9 939 2 7 1 1 Ground The Ground terminal is a common ground and return for all signals to and from the FST 7 1 2 Channel Activity The Channel Activity output from the radio indicates Carrier Operated Squelch COS to the FST E amp M and squelch circuits Please note that the Channel Activity signal is dependent on the radio s code plug The Channel Activity output is required for proper operation of the Omnitronics 936 MP Interface and the FST s squelch facility FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 20 May 2012 VERSION 1 1 COMMERCIAL IN CONFIDENCE 7 1 3 PTT The PTT input to the radio accepts PTT signals from the FST E amp M circuit Foot pedal PTT and Desk microphone PTT switch 7 1 4 Rx Filtered Audio This is the audio received by the radio and subsequently used to drive the following circuits Speaker amplifiers E amp M audio from Radio Balanced Audio out and Headset output for earphones 7 1 5 Monitor Not used on the FST at this time 7 1 6 Aux Microphone The Aux Microphone input to the radio receives audio from the Desk Mic and the FST E amp M Tx Audio for transmission to air 7 1 7 Ignition Sense The FST supplies 12V to the Ignition Sense pin of dash mount and remote mount radios for automatic turn on Please Note The Radios currently in use will only operate correctly if this signal is at 12V On
6. SWS SW SWS FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 16 May 2012 e nex 3 2 AE nt VERSION 1 1 COMMERCIAL IN CONFIDENCE 5 9 Light Weight Headset and Microphone Located on the rear panel this RJ 22 interface 4P4C provides a Tx mic pair and an Rx ear piece pair The headset and microphone level adjustments are recessed screwdriver adjustable volume controls on either side of the jack These interfaces meet telecommunications network connection safety and level requirements AS NZS 60950 ACA TS 006 Clause 5 2 2 a HEADSET 5 10 XTL 5000 Remote Control Head Power A 12 Vdc external power connection can be used to power the XTL 5000 Remote Control Head and external speaker connected to it For this application it 1 used to power the Omnitronics 936 Multi purpose Interface for remote handsets FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 17 May 2012 VERSION 1 1 COMMERCIAL IN CONFIDENCE ACCESSORIES There are a number of accessories included with the Fixed Station Terminal model dependant 6 1 Controller Microphone The Controller keypad with PTT and programmable buttons connects to the DB25 interface located on the front of the XTL5000 mobile radio 6 2 Fixed Antenna A 450 520 MHz ground independent dipole antenna with unity gain Polar model 315U is fixed to the rear of the cabinet and
7. R109 to the buffer driver U15C The audio is then tracked via decoupling cap C103 to limit resistor R113 The output is clamped by back to back zener diodes Z9 amp 710 to limit the amplitude of the signal The return is via R114 to ground 8 9 External Microphone FST 5020 2A The microphone connector is an RJ 45 SK3 that provides an interface for PTT and microphone audio with pin outs as per the table below Level Sensitivity 1 amp 2 NotConnected 3 PIT Pulldownto activate Microphone Bias voltage 3 __ 6 Hook Not implemented Verrem 74 S These pin outs match Motorola Desk Microphone HMN3000B 4273 RJ 45 interface The microphone signal is independent of the microphone signal on the front microphone connector The nominal input level is 50mV RMS for 60 deviation but can also support 300 mV RMS The DC impedance is 660 Ohms and the AC impedance is 560 Ohms The level adjustment is a recessed screwdriver adjustable volume control located on the rear panel The microphone bias is provided by R97 the signal from the mic decoupled by C94 and the level set by pot RV8 There is a clamp and filter network provided by D3 amp 4 plus capacitors and resistors see sheet 4D sub board for detail before being buffered by the microphone op amp U4D on the main board common to E amp M and Head set and input to Au
8. R66 BRIDGE T10 2944777721 R82 OR NON BGE c65 470n BRIDGE R80 BRIDGE MOTOROLA I O HUB SCHEMATICSAMPS PC 5041 SHT 4C VERSION 1 1 COMMERCIAL IN CONFIDENCE Circuit Diagram PC 5041 sheet 4D Sub board Schematic DESK MIC SK3 MOD SKT 8 LP 144148 R99 100k 4148 R101 Sk6 220p C101 HEAD SET 15 2944777721 S6k R106 C100 R105 100k LOG9SR A 28 2944777721 820p C104 3V3 OW4 3V3 4 R109 C105 RV10 Raia 100k LOG9R A 33n C103 R107 K2 069140 L 470n RV4 100k LOG9R A c38 C32 470n Sis RVS 100k LOG9R A cs2 Ed Rv On C107 cios 100k LOG9R A iOu 16V 100 MC cee 33k 015 470n ear a C109 100n Save 18n OV OVA OVB ov ULSA LM348 ove DESIGN TWO THOUSAND PTY LTD PHONE 9758 5933 3042 9758 5560 Jesten 2000 MOTOROLA FST SUB BOARD 9 11 ROSE ST UPPER FERNTREE GULLY MELBOURNE VICTORIA AUSTRALIA UE UNE EIE ott at n me CC HR C t DAT ATE O0 3 51 sco 0 lt 5026 oF IREVISIONIDRNIISSI DATE J B FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 44 May 2012 c7s 10u 100n MC 10u 16 ov 100n McC 10u 16 0 100 16 100 MC 100n MC 10u 16 TDA2003 100 10u 16 TDA2003 OV 100n MC VERSION 1 1 COMMERCIAL IN CONFIDENCE 7 iOu 16V 4
9. The Fixed Station Terminal Interface audio break outs circuit board 15 buffered to allow operation of all facilities simultaneously Preset controls are accessible via recessed screwdriver adjustable controls located on the rear panel FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 6 May 2012 signa gt ZNE VERSION 1 1 COMMERCIAL IN CONFIDENCE 7 1 1 Operating Conditions The Fixed Station Terminal enclosure and its installed power supply operate under the following physical conditions Power source 85 240 Vac 50 Hz mains 230 Vac 50 Hz nominal Nominal output current rating Continuous 5 0 Amps 13 8 V 20 Minutes 20 duty cycle 10 Amps 2 13 8 V Temperature Ambient temperature range 0 C to 40 C with a relative humidity of 0 to 90 non condensing while mounted in the enclosure 1 1 2 Microphone Cradles The FST 5020 2A amp 5050 has microphone cradles on each side to accommodate left amp right handed applications FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 7 May 2012 4 1 designing the sIGNe designing the m i x E ad 1 m E L r Ee E future VERSION 1 1 COMMERCIAL IN CONFIDENCE e HOUSING CONCEPT There are four variants at this time of the enclosure that houses the basic elements The physical layout consists of a
10. 100n MC 10u 16 TDA2003 100n MC 10u 16 TDA2003 OV BRIDGE Jesten 2000 DESIGN TWO THOUSAND PTY LTD Circuit Diagram PC 5041 sheet 4E Power Supply Schematic 100n MC 10u 16 TDA2003 TDA2003 BRIDGE 100n MC 10u 1ev TDA2003 TDA2003 BRIDGE PHONE 9758 5933 3042 oi eh ea aE lt o TO SWITCH 201 1 771 TR2 H2095 H2095 H2095 O NF IN FROM PP T17 SUPPLY 2944777721 r m2 Di STPS1545D EXT BATT CON 2944777721 10 po 3 10A 20X5 G2 V2 P2592 INT CON P 0 di d2 NF 27 18V SW D2 STPS1545D OUT TO RADIO T16 2944777721 gt I 23 IO V2 R A 05 Io 2592 1 4004 INTERNAL RADIO AUX OUTPUT FOR REMOTE HEAD T12 2944777721 SA 20X5 M OV OVA OVB MOTOROLA 1 0 HUB FAX 9758 5560 9 11 ROSE ST UPPER FERNTREE GULLY MELBOURNE VICTORIA AUSTRALIA 20 ddd INITIAL IRGK Pi 1200510031 51 1 Version 1 1 Page 45
11. FST for various interfacing functions These are listed in the table below Signal Description J2 Pin Number PC 5021 Pin Number PC 5041 Pin Number Feature connector DB9 PL13 RJ 45 PL13 26 pin 4 row DB style PC 5041 Pin Number DB9 PL18 Goud Pd Channel Activity 123 20 49 bLD PIT 6 193 8 Rx Filtered Audio me Jgnition Sense These signals are described in the previous introduction and further referred to in text below FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 26 May 2012 si Ass VERSION 1 1 COMMERCIAL IN CONFIDENCE 8 2 Power Supply Model dependant FST 5020 2A The 5020 incorporates 15 150W switch mode supply with internal over voltage and over current protection It 1 supplied from an IEC Filter Fuse combination via a two pole mains neon indicator rocker switch located on the front panel The fuse in the IEC socket is a 6A 20 x 5 glass type fuse An Earth connection is made on a stud beside the IEC socket the body of the socket and the frame of the power supply The radio body is connected to earth via its RF connectors FST 5050 The 5050 incorporates 15V 150W switch mode supply with internal over voltage and over current protection It is supplied from a hardwired mains lead An Earth connection is made on a stud beside the cord grip grommet and at the frame of the power supply The radio
12. body is connected to earth via its RF connectors 8 3 12 Volt Charger FST 5020 2A 14 2Vdc nominal 10A is fed to the FST board from the power supply PL9 a 2 pin connector on PC 5021 or 3 pin connector on PC 5041 The three pin model tracks the current through T17 filter and the ve via switch connections TP2 amp and fed to D1 This is a heat sunk Schottky steering diode From the cathode of D1 the ve tracks via a 10A 20 x 5 fuse F6 to the output for charging the lead acid battery The external battery is supplied via T11 filter to PL10 on the rear panel Internal batteries are supplied via PL20 The power supply should be adjusted to provide 13 75 Volts at the Battery Connector The Battery charge circuit is limited to a Maximum of 18V and is reverse polarity protected by a 5W zener diode Z7 From D1 the power is tracked through D2 to feed the circuits on the FST board the auxiliary out put for the remote head and power to the radio The auxiliary output for remote head PL16 is protected by a 6A 20 x 5 fuse F7 and D5 protects it from reverse connections A LED normally blue is provided to indicate DC present during operation LED2 and either mounted on the PCB or in a bezel on the front panel The FST 5020 2A has a battery isolation switch with an integrated red LED place of the blue DC supply indicator found on the FST 5020 Sheet 4E of the circuit diagram shows the power connections and decoupling supply caps
13. of which may be a cracked case or damaged controller microphone inhibiting the function of the push buttons ce5igne ee tone S FIXED STATION TERMINAL FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 39 May 2012 e NOOO i VERSION 1 1 COMMERCIAL IN CONFIDENCE Appendix A Feature Sets Please Note Model FST 5040 is not currently used in Australia FST 5020 external boxes DC Indicator Internal 14 2Vdc 10 Supply lt Internal 12V 10Ah SLA Internal Battery bracket IEC Mains Filter amp Fuse Attenuated amp Non Attenuated N Type Sockets Internal Bi Directional Coupler Antenna Bracket W 4 x Speaker Amplifiers 5W nom 4 8 Ohm E amp M Interface Balanced Line Level Audio Output Inbuilt Speaker Foot Pedal PTT Input Headset Socket Remote Head Unit Power Terminal Desk Microphone Input Squelch circuitry Service Manual lt i lt lt vw FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 40 May 2012 designing the future Appendix Circuit Diagram MOD SKT 8 LP P1438 BALANCED AUDIO SPEAKERS v or QOoOoOQOQOQOQOQ eS P 1 2005100531 INITIAL IREVISTONIDRNITSS Dare VERSION 1 1 COMMERCIAL IN CONFIDENCE PC 5041 sheet 4A Hierarchy Schematic FIT LINK IF REMOTE HERD UNIT NOT USED
14. to back zener diodes to limit the amplitude of the signal The secondary of the transformer has an impedance matching resistor R5 in parallel and then the signal passes to the pot RV1 Tx to radio From the wiper of the pot the audio then tracks to a buffer amplifier U4D which is common to the external microphone and headset mic and this drives a bi polar decoupling isolating capacitor C3 to J2 pin 23 Auxiliary Mic 8 12 ESM Test FST 5020 2A Test Equipment Oscilloscope CRO Tektronix TDS 220 820 Hz Oscillator Portable Radio ODX driver Model LI 4302 Test Prerequisites Setup Power applied to FST radio turned on and talk group selected Portable radio turned on and talk group selected Procedure Expected result Check if incorrect 1 Connect driver output to FST to Tx and Portable to pair on RJ 45 Rx Connect to Tx pair on RJ 45 o irons Sewer pair on RJ 45 radio for 1 V clipping RJ 45 6 Connect CRO to Rx pair on RJ 45 meum qmm I Oscillator to Portable and key up I EE condition from radio for 1 clipping 10 Disconnect Discomect CRO Turn off FST and portable indicators to go out aoe FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 33 May 2012 35 gna Wale EN VERSION 1 1 COMMERCIAL I
15. to the various components on the main PCB U4C is a buffered divider that provides OVA and OVB for the op amps on both boards FST 5050 The FST 5050 charges the internal battery directly from the internal power supply when mains power is connected amp the battery isolation switch is in the CHARGE position INTERNAL BATTERY ON CHARGE FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 27 May 2012 Jo nexo IN m VERSION 1 1 COMMERCIAL IN CONFIDENCE 8 4 Power Supply Test Equipment required True RMS Multimeter Test Prerequisites setup Fully assembled FST plugged into a switchable 230Vac Mains socket outlet via portable in line RCD FST Mains switch OFF Procedure switch and reset RCD switch mine ee atc pon illuminate If no Voltage cycle power Connect Multi Meter to 10 15Vdc EXT BATT terminal and measure for dc volts Adjust battery charging 13 75Vdc potentiometer so that Multi Meter reads 13 75V dc 5 Disconnect Multi Meter Turn off FST Mains ac Neon to go out and dc switch Power LED to go out FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 28 May 2012 e VERSION 1 1 COMMERCIAL IN CONFIDENCE 8 5 Radio amp Internal Speaker Test Equipment required True RMS multimeter Portable Radio Model XTS5000 820Hz Oscillator Test Prerequisites setup Fully assembled FST plugged into a swi
16. CIAL IN CONFIDENCE 5 5 External 4 89 Speaker Outputs with preset level These outputs are designed to drive four independent 5W nom 4 8Q speakers The minimum audio output level for each output 15 internally fixed The maximum audio output level for each speaker is adjusted by a recessed screwdriver adjustable volume control above each of the speaker outputs The outputs are on a pluggable eight way connector block with screw terminals 5W NOM 4 8 OHM 5 6 4 wire ESM Interface This 15 a radio independent 4 Wire 6000 balanced Tx pair and Rx pair plus 12 48V amp connections Both the E amp M interfaces are optically isolated providing galvanic isolation These interfaces meet telecommunications network connection safety and level requirements AS NZS 60950 ACA TS 006 Clause 5 2 2 a and are available on an RJ 45 connector located on the rear panel 5 6 1 Receiver Ear Equipment interface The Receive signal condition is indicated by a contact closure on the lead of the Fixed Station Terminal 12 to 48 is supplied by the external equipment The Receive audio level 15 adjustable from 20dBm to 5dBm for 60 system deviation using the recessed screwdriver adjustable volume control to the right of the jack 5 6 2 Transmitter M Mouth Modulator interface The transmitter is keyed by 12 to 48V applied from the external equipment to the M lead of the Fixed Station Terminal The Transmit audio lev
17. CIAL IN CONFIDENCE 7 4 External Microphone FST 5020 2A The microphone connector is an RJ 45 SK3 This provides an interface for PTT and microphone audio with pin outs as per the table below Viewed from front of socket RJ 45 8P8C Plug Viewed with tab on top Level Sensitivity Pull down to activate Bias voltage 12V 6 Via LK4to MON Notimplemented 7 amp 8 00 These pin outs match Motorola Desk Microphone HMN3000B 4273 and RMN5068A RJ 45 interface The microphone signal is independent of the microphone signal on the front microphone connector The nominal input level is 80mV RMS for 60 deviation but can also support 300 mV RMS The DC impedance is 660 Ohms and the AC impedance is 560 Ohms The level adjustment is a recessed screwdriver adjustable volume control located on the rear panel Please note that the RMN5068A has an eight way dip switch in the base of the unit Dipswitch 6 must be in the DOWN position p TRUST are EE af Aerei i RR a k ms 1 HMN3000B 4273 5068 FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 22 May 2012 INBO SS a SON at i VERSION 1 1 COMMERCIAL IN CONFIDENCE 7 5 External PTT FST 5020 2A A 3 pin header PL17 provides the connectivity for a foot operated PTT Pins 1 amp 3 are the PTT connection pul
18. DENCE FIXED STATION TERMINAL FST 5020 2A FST 5050 Functional Description 6 Operating Conditions 7 _ Cradles 77 1 22 FSTS002A 23 FSTS00 S 9 138372 E 31 7 33 10 4 Panel Electronics PowrONOFF DC Supply Indicator 1l 861 terface 759 He 777 0 _ ug tn Sse E 74 External Microphone o 22 25 FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 3 May 2012 SIC DOS 2 VERSION 1 1 COMMERCIAL IN CONFIDENCE 78 RemoteHead 936MPlPowr 25 8 i Circuit Description for Fault Finding 2 6 Ratio Interface 0 08 82 PoweSupl 7272 86 1 Speaker Outputs Y 29 89 External Microphone 0 0 3l 9 BerdLewlTets 38 10 Maintenance 37 Battery Check Battery Replacement Aesthetics Feature Sets Circuit Hierarchy schematic Circuit Audio E amp M schematic Circuit Amplifier schematic Circuit Sub board schematic Circuit Power Supp
19. FIXED STATION TERMINAL mer ere PTT MINTERFACE BAL AUDIO ar WARNING 1 4 4 1 ISOLATE ALL POWER SOURCES BEFORE STATION REMOVING COVER TERMINAL no user serviceaste INSIDE MODEL FST 5020 of EN NZS 60950 je N28 3 33501 ASI 28508 nd any 17 Figure 1 FST 5020 2A Front Figure 2 FST5020 2A Rear 1 1 GENERAL FEATURES The Fixed Station Terminal and variants are a re locatable desktop mounted XTL 5000 Mobile Radio for use in an office environment or temporary location In a fixed installation these Radio Terminals are used in 1 Watt low power mode In certain field applications they can be configured for standard 25 Watt mobile power mode See Appendix A for applicable options The Fixed Station Terminal operates from either 230 Vac mains power an internal external 12 Vdc battery The FST 5020 2A Terminal has the capability to Charge the inbuilt 12 Vdc rechargeable battery whilst powered from the mains Power four external 5W nom 4 8 Ohm speakers Provide a 600 Ohm balanced Rx audio output Provide an E amp M interface for an external microphone speaker Tx Rx arrangement Interface an external desk microphone Interface an external lightweight headset microphone Interface an external foot pedal PTT Power a remote radio head and speaker 0000600909 These interfaces meet telecommunications network connection safety and level requirements AS NZS 60950 ACA TS 006 Clause 5 2 2 a
20. MMERCIAL IN CONFIDENCE 4 FRONT PANEL ELECTRONICS There are a number of front panel indicators and control features on the Fixed Station Terminal Main Power ON OFF Switch Located on the bottom right corner When the main power switch is switched to the ON position the switch will illuminate and the XTL 5000 radio will power up Model FST 5020 2A Model FST 5050 has no Mains on off switch Only the radio power button 15 used MAINS ON 5020 DC Supply LED Located on the top right hand corner When the dc power switch is placed in the ON position down and the internal battery is charging the LED will illuminate red The FST 5020 2A has a battery on off switch with an integrated red LED The FST 5050 has the same switch on the rear panel DC SUPPLY P d TERMINAL FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 11 May 2012 7 VERSION 1 1 COMMERCIAL IN CONFIDENCE 5 REAR PANEL INTERFACE ELECTRONICS There are a number of additional audio and control features located on the rear panel of the Fixed Station Terminal 5 1 10 dB Attenuated RF Output Located on the rear panel is a 10 dB attenuated RF output for the fixed antenna or a suitable external antenna unity gain 450 520 MHz This is to be used during normal trunking operation The following indicates the nominal output of the terminal in low and high power modes with the dummy load c
21. N CONFIDENCE 8 13 Balanced Audio Out Test FST 5020 2A The received audio From Radio 15 derived from J2 pin 21 Rx Filtered Audio via the buffer U3B squelched and the output from this is common to the E amp M amp Headset speakers The signal passes through C8 and pot RV3 Rx from radio to drivers U3 C amp D which are arranged in a push pull configuration to drive the primary on the 600 Ohm isolation Transformer T6 The secondary of T6 is connected to a 6 35mm stereo socket SK1 across the tip and ring This 1 via limiting resistors R17 amp 18 fuse F5 and choke T5 There are also back to back zener diodes Z5 amp Z6 to limit the amplitude of the signal A link LK1 is provided in case an earth 1 required for the shield sleeve of SK1 BALANCED AUDIO SLEEVE RING TIP 6 35mm 1 4 Stereo Plug TIP AUDIO FROM RADIO RING AUDIO FROM RADIO SLEEVE SHIELD Test Equipment Oscilloscope CRO Tektronix TDS 220 820 Hz Oscillator Portable Radio Test Prerequisites Setup Power applied to FST radio turned on and talk group selected Portable radio turned on and talk group selected Expected result Check if incorrect Connect CRO to BAL AUDIO OUT phono socket Acoustically couple FST to Rx 820Hz Oscillator to Portable and key up Adjust Rx potentiometer 1V p p observe no audio from radio for 1 clipping V p p 7 Disconnect CRO Turn off FST and All indicators to go portable out
22. PC 5041 FST 5020 2A boards link LK5 will break this supply should it be needed in the future 7 2 12 Volt Charger FST 5020 2A 12Vdc nominal 10 is fed into the FST boards on PL9 through to D1 a steering diode then to the output to the lead acid battery for charging From D1 the power 1s tracked through D2 to feed the circuits on the FST board and power the radio 7 3 External Speaker Outputs FST 5020 2A The signal originating at J2 pin 21 Rx Filtered Audio is amplified via 4 independent circuits designed to drive 4 8 Ohm loads rated at a nominal 5W with a set level audio output Each has an independent potentiometer to adjust the output All 4 outputs are presented at the rear panel on a combined 8 way terminal block The minimum audio output level for each output is internally preset The maximum audio output level is adjusted by a recessed screwdriver adjustable volume control above each of the four outputs These outputs are separate connectors interchangeable with two pin pluggable screw connectors Caution Do not short either lead to ground which might cause component damage Even though audio may still be heard from the speaker the shorted side will go into current limiting and eventually into thermal shutdown shutting off the amplifier These protection devices are not intended to be tested FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 21 May 2012 VERSION 1 1 COMMER
23. PL20 Internal Batt Connector Connectors 4 Connect switch between 12V and DB9 pin 2 or RJ 45 PL13 pin 1 Channel activity input Observe green sub board Illuminated when switch off Check squelch circuit K1 K2 amp LED1 Connect test LED between 12V and Test LED illuminates when switch Check E circuit of E amp M i meme xum tm 08 ot ground Wu uL activity input amp test LED from PLS Connect test LED between 12V and DB9 pin 3 or RJ 45 PL 13 pin 8 PTT input 9 Press switch on Desk Test LED Illuminates Check PTT circuit O Z O O O y O T AT Connect oscillator with a 4k9 Verify input signal using Channel 1 Adjust oscillator resistor in series to RJ 45 PL5 pin 5 of O scope at 435mV 1kHz and connect RJ 45 PLS pin 4 to ground Connect channel 2 to DB9 pin 7 Verify 45mV 5mV output See below RJ 45 PL13 pin 5 Aux Mic input with a 560 Ohm resistor from pin 7 to ground 14 Set E amp M Tx RVI to Max Verify 575mV 25mV output If Ok See test 15 No output check the following points See 14A amp B Refer to Circuit diagram Sht 4B 1 Check the voltages at end of R5 should read 6 65V Flat OVA nearest Amplifiers using scope set to DC located near T3 Check the voltages at end of R5 approx 200mV p p on top of If not check Fuse F2 and T3 If ok perform next test furthest from Amplifiers using 6 65V DC level 14C scope set to DC l
24. VERSION 1 1 COMMERCIAL IN CONFIDENCE IEn design2000 com au Fixed Station Terminal FST S000 Series ASTRO 25 Digital APCO Project 25 Compliant Installation amp Service Handbook Item 3 of List of Deliverables Document Number G 05164G Version 1 1 May 2012 Design Two Thousand Pty Ltd 9 1 Rose Street Upper Ferntree Gully Melbourne Victoria 3156 Australia Australian Business Number 45 005 014 639 Telephone 613 9758 5933 Facsimile 613 9758 5560 Email gen design2000 com au Web Site www design2000 com au o 2012 Design 2000 Pty Ltd cCeignee9 Est 1968 FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 1 May 2012 IINGOO _ AL VERSION 1 1 COMMERCIAL IN CONFIDENCE DOCUMENT CONTROL Document Number G 05164G Document Name FST 5000 Series Installation amp Service Handbook Security Commercial In Confidence Circulation Motorola Design 2000 Licensed Installers Prepared By Peter Zeug Reviewed By Ross Kells James O Ryan Kevin Byrne Approved By Version Control 22 06 2006 Initial version 26 06 2006 J O s amendments included 27 06 2006 K B s notes amp corrections made 25 05 2012 New desktop mic FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 2 May 2012 ema 2 gee T aya j j JE o A 1 VERSION 1 1 COMMERCIAL IN CONFI
25. amp Headset speakers The signal passes through C5 and pot RV2 Rx from radio to drivers U4 A amp B which are arranged in a push pull configuration to drive the primary on the 600 Ohm isolation Transformer T4 The secondary of T4 15 connected to pins 3 amp 6 via limiting resistors fuse F4 and choke T2 There are also back to back zener diodes to limit the amplitude of the signal The transmit M signalling on pins 7 amp 8 of PLS are connected to the bi directional LED of U1 PS2505 1 viaa limiting resistor and fuse A capacitor 15 connected in parallel with the LED to provide some persistence amp resistance to noise The open collector of U1 is connected between J2 pin 16 PTT and Ground In the table above polarities are indicated to reduce confusion When this signal is applied audio to be transmitted by the radio which is delivered to pins 4 amp 5 of the RJ 45 PL5 will be transmitted by the radio Voltages between 12 and 48 Volts can be safely used for FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 32 May 2012 VERSION 1 1 COMMERCIAL IN CONFIDENCE signalling LK2 is provided to shunt the limiting resistor out should there be insufficient current flowing for signalling fit this link with great care The Transmit Audio To Radio applied to pins 4 amp 5 of the RJ 45 PLS It passes though a choke limit resistor RA and Fuse F2 to the primary of the 600 Ohm isolation transformer There are also back
26. annel 2 resistor across Tip amp Ring Connect the Ring to ground Set pot Balanced audio Out Rx RV3 Observe 550mV 25mV on Check Balanced Audio Out Rx from radio Circuit on to Maximum channel 2 sheet 4B of Listen to Headset Earpiece Observe no signal Set pot Headset Rx RV10 to Observe comfortable signal level halfway Set pot Headset Rx RV10 to max Observe loud signal level Check Headset Rx from radio Circuit on sheet 4D of diagram Connect 4 x 3R9 5 Watt resistors to speaker socket across pins 1 amp 2 3 amp 4 5 amp 6 7 amp 8 to CAUTION RESISTORS GET HOT Connect Scope Channel 2 to end of resistor on speaker 1 While advancing Volume 1 RV4 Observe trace increasing until Check Amplifier Circuit on sheet 4C of diagram clipping occurs approx 3 7V then back off to approx 3 3V 30 Repeat for other resistors maie ee 32 TestcompleteSeebelow o Switch off power supply set all pots to centre halfway remove all connected equipment reconnect internal power supply and all other connections Test complete FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 36 May 2012 e VERSION 1 1 COMMERCIAL IN CONFIDENCE 10 BATTERY MAINTENANCE FST 5020 2A amp 5050 This FST 5020 2A includes a 12V 7 2Ah internal lead acid battery mounted on the internal mounting bracket and a battery isolation switch on the front panel The battery isolation s
27. clamp the input signal resulting in distortion Warning The output of other types of electronics is typically referenced to zero volts DC and would require 10 uF capacitor to be placed in series with IN If the capacitor is polarized the positive lead goes to the radio MIC_IN Some audio generators have the option of applying the 1 5 Volts DC offset which may be used in place of a capacitor 6 4 2 Audio PA Output Bias Receiver The audio PA 1s a Bridge To Load BTL amplifier When the radio is in receive mode the output of both speaker leads are biased up to half of the supply voltage Both leads are at the same potential so the average DC voltage across the load 15 zero At maximum volume the signal voltage to the load is double that of one amplifier peak to peak because the amplifiers work together 180 degrees out of phase Caution Do not short either lead to ground which might cause component damage Even though audio may still be heard from the speaker the shorted side will go into current limiting and eventually into thermal shutdown shutting off the amplifier These protection devices are not intended to be tested 6 4 3 Main power The radio itself requires nominal 13 75Vdc supply with negative ground This is provided by an internal power supply with 85 240 Vac 50 Hz mains 230 Vac 50 Hz nominal input and 14 2Vdc output This output travels via Schottky steering protection diodes to produce about 13 75V at the rad
28. connects to the 10 dB Attenuated RF connector 10dB ATTENUATED ATTEN 6 3 5 Watt Dummy Load A 5 Watt dummy load to absorb excess transmit power while in Low Power mode normally connects to the RF connector It is alternatively connected to the Attenuated RF connector when operating the Fixed Terminal in the high power state with an external antenna connected to the RF connector 1098 ATTENUATED ATTENUATED FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 18 May 2012 des 2171 nir Ti 1g th a ure LL _ gt EC A o a VERSION 1 1 COMMERCIAL IN CONFIDENCE 6 4 Notes The following technical notes assist accessory selection 6 4 1 Microphone Bias Transmitter Most microphones are powered by a phantom Power supply where the bias to the electronics within the microphone is supplied as direct coupled down the MIC IN line During Push To Talk or transmit PTT the microphone electronics are connected to this line and loads it down from 9 V to a bias voltage between 3 to 6 volts The AC load or load line is less than 560 Ohms at the radio due to AC decoupling on both sides of this resistor AC Audio from the microphone passes up the same MIC_IN line and AC coupled eventually to a high impedance amplifier circuit It is imperative that this input has a bias voltage between 1 5 and 9 5 volts Connecting to anything other than a microphone could short out or
29. e FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 30 May 2012 Sll nexo H IN m VERSION 1 1 COMMERCIAL IN CONFIDENCE Fleadset FST 5020 2A Connections for the headset are provided by an RJ 22 interface socket SK2 Connections are as per the table below Level Sensitivity 11 Microphone 5 6 bias Speaker drive Speaker Speaker return Viewed from Microphone Microphone return front of socket The pin outs match the North American Reverse Polarity standard see sheet 4D sub board for circuit detail The microphone bias is provided by R103 clamped at 5 6 volts by zener Z8 and stabilised by C98 This voltage is applied via R104 to MIC pin 1 SK2 The signal from the mic decoupled by C99 and the level set by pot RV9 Tx to radio The signal is buffered filtered by the op amp U15D before being mixed by the buffer microphone op amp U4D on the main board common to E amp M and External Mic and input to Auxiliary Microphone input at pin 23 on J2 feature connector on the main board The headset and microphone level adjustment are recessed screwdriver adjustable volume controls located on the rear panel The speaker audio From Radio is derived from J2 pin 21 Rx Filtered Audio via the buffer U3B squelched and the out put from this is common to the Balanced Audio amp E amp M The signal 1 tracked through C106 to pot RV10 Rx from radio then C105
30. el is adjustable from 20 dBm to 5 dBm for 60 system deviation using the recessed screwdriver adjustable volume control to the left of the jack amp INTERFACE FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 14 May 2012 VERSION 1 1 COMMERCIAL IN CONFIDENCE 5 7 Foot Pedal PTT The external Push to Talk input uses a 3 pin 0 156 inch header interface Pulling this line to ground will enable the PTT function activating the AUX MIC input 5 8 Desk Microphone Located on the rear panel this RJ 45 provides an interface for PTT and microphone audio The microphone signal is independent of the microphone signal on the front microphone connector The nominal input level is 80mV RMS for 60 deviation but can also support 300 mV RMS The DC impedance is 600 Ohms and the AC impedance 1 560 Ohms The transmit level can be adjusted using the recessed screwdriver adjustable volume control next to the Mic jack FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 15 May 2012 VERSION 1 1 COMMERCIAL IN CONFIDENCE A new desktop microphone was released circa 2011 It is model number RMN5068 The RJ 45 connector is pin for pin compatible however the internal dips switches require adjustment The dipswitches are accessed by removing the base plate RMNS068 Desktop Microphone Recommended RMN5068 Dip Switch settings for operation with FST 5020 2A SW2 SW3 sw4
31. formed by an authorised service technician Exercise extreme care not to go near the mains power underneath the internal shelf FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 37 May 2012 2 oe 2 QE 0 4 T 11 2 m VERSION 1 1 COMMERCIAL IN CONFIDENCE 10 2 Battery Replacement If the battery fails to operate the FST isolate mains power turn off the battery isolation switch remove the FST cover remove the battery clamp battery leads and battery and replace with the same type Check for correct polarity red ve black ve and reassemble the FST Batteries should be systematically replaced at least every five years The FST 5020 2A uses an Altronics Model S5090B battery The FST 5050 uses a Power Sonic Model PSH 12100 F2 battery Spares are available from Design 2000 Pty Ltd FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 38 May 2012 Pd m 9 VERSION 1 1 COMMERCIAL IN CONFIDENCE 11 INSTALLATION GENERAL The relevant subsections amp Installation check sheet for FST installation are covered in other Motorola documentation Please consult your Fixed Station Terminal Manager as required 11 1 Aesthetics Check that the equipment has no marks or damage that detracts from the equipment and appearance of the installation More substantial marks and damage may affect equipment performance An example
32. io power input This supply to the radio transceiver meets low output hum and noise requirements as well as low RF radiation levels to prevent interference with the radio receiver The power supply may operate with a 12 Vdc sealed lead acid standby battery Complies with the relevant clauses of ASINZS 60950 AS NZS 3350 1 ASINZS 3100 and AS NZS 3017 for Electrical Safety MAINS INPUT 230V AC SERIAL NO 468 MADE IN AUSTRALIA FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 19 May 2012 VERSION 1 1 COMMERCIAL IN CONFIDENCE 7 CIRCUIT DESCRIPTIONS These are mid level descriptions of the interfaces 27 1 Radio Interface FST 5020 2A SPERA USB 9 OSS E g KNITION 2 US PWR VIP 1 OUT 12 V UARTA RX S 24 11 RTS 95 252 lever ONE WIRE TX MCH 23 M CTS MONITOR 22 SUSY Z53500 at EMERGENCY 2 BLIS 5 V logic level 2 RESET ui 14 GROUND Viewed from wiring side The feature connector J2 on the XTL5000 provides a number of signals required by the FST for interfacing to various functions These are listed in the table below Signal Description J2 Pin Number PC 5021 Pin Number PC 5041 Pin Number Feature connector DB9 PL13 RJ 45 PL13 26 pin 4 row DB style PC 5041 Pin Number DB9 PL18 Goud 1110 00200 Channel Activity 1237 22 10 20 6 1 3 1 Rx Filtered Audio 6 17 0 Menor
33. l low to activate and the centre pin is OV or Ground This interface is for a Motorola 40C82663C06 foot pedal assy It uses a 0 156 3 96mm pitch connector 3 96mm 0 156 CONNECTOR PIN DESCRIPTION 1 PIT 2 GND 3 PIT FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 23 May 2012 VERSION 1 1 COMMERCIAL IN CONFIDENCE 7 6 Headset FST 5020 2A A Headset can be connected to the RJ 22 interface socket SK2 The pin outs are as per the table below RJ 22 4P4C Plug Viewed with tab on top These pin outs match the North American Reverse polarity standard please note that electret microphones are polarity sensitive If there is no Tx audio the RJ 22 plug on the headset lead will need to be reversed The microphone bias provides drive to suit all tested headsets It is buffered and then fed to the Auxiliary Microphone input on pin 23 of the J2 feature connector The earpiece and microphone level can be adjusted by the recessed screwdriver adjustable volume controls located on the rear panel An amplified headset may also be used The Plantronics Vista M12 has been approved for use with the FST 5020 and FST 5020 2A e Default settings on the Plantronics Vista M12 Switch setting 5 adjustable pots set half way and on the FST 5020 Headset Tx amp Rx adjustable pots set half way are an excellent starting point e 15 possible to wind up all Rx pots with no reproducible risk of acous
34. ly schematic Est 1968 FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 4 May 2012 rr ANTA VERSION 1 1 COMMERCIAL IN CONFIDENCE Assumptions This document assumes that qualified installers and maintenance technicians perform the installation and maintenance procedures and are therefore aware of basic wiring and installation Industry Best Practices The Occupational Health amp Safety of all personnel working on or near this equipment is the responsibility of the installer or technician performing the tests or operations Warning This equipment may contain lethal voltages and must be isolated from supply before any cover is removed Warranty The Fixed Station Terminal Units have a Two Year Warranty against defects in Materials and Workmanship If problems are experienced with the installation or operation of the Fixed Station Terminal Unit please call the Help Desk Number listed below before returning units to the factory for repair In many cases problems can be diagnosed and rectified over the phone avoiding unnecessary transportation and service costs HELP DESK 03 9758 5933 Hours FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 5 May 2012 um 2 gee e F S3 i 2 ON ral VERSION 1 1 COMMERCIAL IN CONFIDENCE 1 FUNCTIONAL DESCRIPTION designee e wenn
35. metal housing that holds the XTL 5000 Mobile radio audio and control interface board bi directional coupler antenna and power supply e Fixed Station Terminal FST 5O20 This housing is a freestanding case with a minimal footprint The physical layout consists of a metal housing that holds the XTL 5000 Mobile radio audio and control interface board bi directional coupler antenna and power supply The radio is a dash mount or remote mount optional Motorola XTL 5000 Mobile Terminal The standard mobile trunnion bracket is used inside the enclosure and the radio 1 held in place with two trunnion screws Do 1 1 1 9 1 STATION ANI ema N eur designeeee SIDE VIEW FRONT VIEW REAR VIEW Enclosure dimensions including feet 280mm x 235mm x 270mm H x W x D e a Fixed Station Terminal FST 5Og2O 2A This model also includes a 7 2Ah internal lead acid battery mounted on the internal mounting tray and a battery isolation switch on the front panel The battery isolation switch should be turned to the downward ON position whenever the FST is connected to mains power or when you require the FST to run on battery power Whenever the FST 1s to be stored turn the switch to the upward OFF position Enclosure dimensions including feet 280mm x 235mm x 270mm H x W x D FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 8 May 2012
36. nual G 05164G Version 1 1 Page 12 May 2012 A __ designing the e 4 VERSION 1 1 COMMERCIAL IN CONFIDENCE 5 3 External Battery This interface accepts an input of 12 Vdc up to 18 Vdc with reverse polarity fuse protection or charges an external 12V 10 Ah sealed lead acid battery for standby power This standby battery may operate the radio and auxiliary equipment in the case of mains power failure The battery connection charges the battery at a minimum of the 10 Amp hour rate when the AC supply 1 available while continuing to run the radio It is possible to connect 12 Vdc standby power source other than a battery to provide standby power 5 4 500 6009 Receive Line Output with preset level This audio output is designed to connect to high impedance balanced input PA amplifier systems The line output has a standard stereo phono jack connector located on the rear panel The level is adjusted by a recessed screwdriver adjustable volume control located next to the jack BAL AUDIO OUT FIXED STATION TERMINAL FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 13 May 2012 nm 4 E E T M n a a e cesigqning the future x T n 7 ES mi s ME N ii F aiu a i e c r N M4 a A C Ur VERSION 1 1 COMMER
37. ocated near T3 Check the voltages at U4 d pin 14 approx 1V on top of 6 65V DC Ifnot check pot RV1 R6 and for any short to PL14 15 Microphone Buffer using scope set level header to sub board pin 21 and circuits to MIC BUF to DC located near T3 see circuit diagram sht 4D If ok check C3 10uF 50V Bi polar cap 15 Remove Oscillator Check 151 amp 2 are connected as perl2 amp 13 above 16 Set headset Tx RV9 to Maximum Observe approx 200mV channel Check Headset Tx Circuit on sheet 4D of diagram Speak into head set mic 2 Set Ext Mic Tx to Maximum Observe approx 200mV channel Check Desk Mic Tx Circuit on sheet 4D of diagram FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 35 May 2012 J5 aS VERSION 1 1 COMMERCIAL IN CONFIDENCE Press PTT on Desk mic and speak into Desk Mic Connect oscillator to DB9 pin 6 or RJ 45 PL13 pin 7 Rx Filtered Audio 19 Connect Scope channel 1 with a Verify approx 300mV 20k resistor in series to the oscillator point as above 20 Connect Scope channel 2 to RJ 45 Verify approx 65mV 5mV PL5 pin 6 with a 560R resistor in parallel to ground and connect RJ 45 PLS pin 3 to ground Set pot E amp M Rx RV2 to Maximum Observe Ch2 approx 450mV Check E amp M Rx from radio Circuit on sheet 4B of 50mV diagram Connect Channel 2 to the Tip of a Observe 85mV 15mV on 6 35mm stereo plug with a 47k ch
38. of the amplifier TDA2003 mounted on the heat sink dissecting the main PCB It should be noted that the amplifier can be configured in a bridge arrangement but this 1s not fitted to conserve power these components are designated BRIDGE on the circuit diagram The amplified signal from pin 4 on the TDA2003 passes through a 1000uF 16V electrolytic capacitor via a choke to the output terminals FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 29 May 2012 sIgnaxaxaxa E uu E VERSION 1 1 COMMERCIAL IN CONFIDENCE 8 7 Power Amplifiers Test FST 5020 2A Equipment required True RMS multimeter Oscilloscope CRO Tektronix TDS 220 820 Hz Oscillator Portable Radio 8 Ohm load Test Prerequisites setup Fully assembled FST plugged into a switchable 230Vac Mains socket outlet via a portable in line RCD Power applied to FST radio turned on and talk group selected Portable radio turned on and talk group selected CRO to Speaker 1 output eee mmm receive mode Acoustically couple FST speaker to sound Check signal to Main PCB 820Hz oscillator to Portable CRO displays signal Check volume control Trace signal through path described above Adjust Speaker 1 volume No clipping from min to control slowly from min 90 to max terminals 2 3 and 4 90 Turn all four speaker potentiometers anti clockwise to way mark and CRO uai oc portabl
39. onnected to the non attenuated RF Output Low power 1 Watt High power 2 5 Watt Caution If the Fixed Station Terminal 1 set to high power and the fixed antenna 1 connected to the Attenuated RF Output the Terminal will transmit at a nominal 2 5 Watts ACMA regulations stipulate that all Fixed Stations in a normal office environment must not transmit more than 1 Watt of RF output power Verify that the 5 Watt dummy load is connected to the RF Output when operating the Fixed Terminal with the fixed antenna 10dB NON ATTENUATED ATTENUATED 5 2 Non Attenuated RF Output Located on the rear panel 15 a non attenuated RF output for an external antenna located on mast An external antenna is to be used only if the integrated fixed antenna does not provide adequate reception The following indicates the nominal output of the terminal in low and high power modes with the dummy load connected to the Attenuated RF Output Low power 10 Watt High power 25 Watt Warning not connect the fixed antenna to this output Operating the Fixed Station Terminal with the fixed antenna connected to the non attenuated RF Output can result in a radiation hazard to the operator and bystanders Only use a proper external antenna located on a mast Verify that the supplied 5 Watt dummy load is connected to the Attenuated RF Output when operating the Fixed Terminal with an external antenna FST 5000 Series Installation amp Service Ma
40. t channel activity goes low m E ve 3 TxAudio Audio to Omnitronics 936 MPI from radio 4 Rxaudio Audio from Omnitronics 936 MPI to radio Audio from Omnitronics 936 MPI to radio return a Audio to Omnitronics 936 MPI from radio return front of socket M ve Apply voltage 12 48v between this pin and M aeee to PTT 8 PTT M v E amp M signalling provides the means to remotely signal and control the FST The RJ 45 connector PL5 located on the rear panel has the associated circuitry see circuit diagram sheet 4B to achieve this control The received E signalling Pins 1 amp 2 are connected to an open collector of U2 PS 2532 1 opto via a diode bridge protection fuse and limiting resistor as shown on sheet 4B This arrangement provides a polarity independent open collector that switches when J2 pin 13 Channel Activity COS goes high In the table above polarities are indicated to reduce confusion This signal indicates that there 15 audio being received by the radio which 1 delivered to pins 3 amp 6 of the RJ 45 PL5 Voltages between 12 and 48 Volts can be safely switched LK3 is provided to shunt the limiting resistor out should there be insufficient current flowing for signalling fit this link with great care The received audio From Radio 15 derived from J2 pin 21 Rx Filtered Audio via the buffer U3B squelched and the out put from this is common to the Balanced Audio
41. tchable 230Vac Mains socket outlet via a portable in line RCD Power applied to FST radio turned on and talk group selected Portable radio turned on and talk group selected Procedure Expected result Check if incorrect 1 Key Portable FST to go into RX carrier receive mode Acoustically couple FST speaker to sound Check speaker connector 820Hz Oscillator to Portable Adjust FST XTL5000 No distortion up to 90 Radio volume control slowly from min to max Adjust volume back to MM way portable 8 6 External Speaker Outputs FST 5020 2A Signal from J2 pin 21 Rx Filtered Audio tracks from pin 6 on the DB9 or pin 7 RJ 45 PL13 to PL15 PL14 header socket combination to the sub board on pin 25 On the sub board it passes through C68 amp R85 to 015 This amp buffers the signal and passes the signal to the Level pots RV4 5 6 amp 7 via capacitors The op amp gain can be reduced to zero if there is current flowing through the LED in the LCA110 K2 as would be indicted by LED1 illuminating This function is to squelch the signal and is active when J2 pin 13 Channel Activity is low or not active K2 1s in series with across U3B on the main PCB From the pots the signals pass through caps to 1 2 3 amp 4 back to the main PCB on pins 3 5 7 amp 9 PL15 PL14 header socket combination to the amplifier section as shown on sheet 4C The signal to each amplifier 1s buffered then passed through a tantalum capacitor to pin 1
42. tic shock e 15 suggested that all Tx pots are not adjusted higher than to the way mark There are no serious ramifications other than distorted audio not excessively loud but overdriven at the distant radio FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 24 May 2012 VERSION 1 1 COMMERCIAL IN CONFIDENCE 2 7 E amp M Interface FST 5020 2A This is radio independent 4 Wire 6000 balanced Tx pair and Rx pair plus 48 V passive E amp M connection This interface was set to match the Omnitronics 936 MPI interface This interface meet telecommunications network connection safety and level requirements AS NZS 60950 ACA TS 006 Clause 5 2 2 a and is available on an RJ 45 PL5 connector with pin outs as per the table below Viewed from front of socket RJ 45 8P8C Plug Viewed with tab on top Level Sensitivity Rx Carrier Open collector off collector switched to return when carrier ve present channel activity goes low ERR soe E 3 Tx Audio Audio to Omnitronics 936 MPI from radio 6 Audio to Omnitronics 936 MPI from radio return 2 The Receive signal condition is indicated by a contact closure the lead of the Fixed Station Terminal 12 to 48 is supplied by the external equipment The Receive audio level 15 adjustable from 20dBm to 5dBm for 60 system deviation using the recessed screwdriver adjustable
43. volume control located on the rear panel The transmitter is keyed by 12 to 48V applied from the external equipment to the M lead of the Fixed Station Terminal The Transmit audio level is adjustable from 20 dBm to 5 dBm for 60 system deviation using the recessed screwdriver adjustable volume control located on the rear panel 7 8 XTL 5000 Remote Control Head 936 Power FST 5020 2A 12Vdc external power connection to the XTL 5000 Remote Control Head also used to power the Omnitronics 936 Multi purpose Interface for remote handsets FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 25 May 2012 signaxaaa VERSION 1 1 COMMERCIAL IN CONFIDENCE DETAILED CIRCUIT DESCRIPTIONS FOR FAULT FINDING Assumptions This document assumes that qualified installers and maintenance technicians perform the installation and maintenance procedures and are therefore aware of basic wiring and installation Industry Best Practices The Occupational Health amp Safety of all personnel working on or near this equipment is the responsibility of the installer or technician performing the tests or operations Warning This equipment may contain lethal voltages and must be isolated from supply before any cover is removed 8 1 Radio Interface FST 5020 2A The feature connector J2 on the XTL5000 provides a number of signals required by the
44. witch should be turned to the downward ON position whenever the FST is connected to mains power or when you require the FST to run on battery power Whenever the FST is to be stored turn the switch to the upward OFF position The FST 5050 includes a 12V 10 5Ah internal lead acid battery mounted on the internal mounting bracket and a battery isolation switch on the rear panel The battery isolation switch should be turned to the ON CHARGE position whenever the FST is connected to mains power or when you require the FST to run on battery power Whenever the FST is to be stored turn the switch to the OFF position 10 1 Battery Check Whenever mains power is connected and the battery switch is ON the internal battery is automatically float charged The charge voltage on FST 5020 2A can be checked with a multi meter at the EXT BATT connector on the rear panel It should read about 13 8Vdc The battery supply voltage can also be checked at the same point by turning off the MAINS power switch It should be steady at 212Vdc with the radio turned on i n YN 1 eS m on 2 uM 4 i 7 ESS A iw 4 Y erit RA A 4 D we gt ARSS The FST 5050 can be checked in the same way but at the internal battery terminals which involves removing the FST cover to access the battery terminals This should only be per
45. xiliary Microphone input at pin 23 on J2 feature connector Pin 6 on the RJ 45 SK3 1 tracked to LK4 not fitted and then to J2 pin 22 Monitor This circuit has not been implemented The PTT circuitry is common with the External PTT described below FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 31 May 2012 J5 exeo VERSION 1 1 COMMERCIAL IN CONFIDENCE 8 10 External PTT FST 5020 2A A 3 pin header PL17 provides the connectivity for a foot operated PTT Pins 1 amp 3 are the PTT connection pull low to activate and the centre pin is or Ground This interface is for a Motorola 40C82663C06 foot pedal assy It uses a 0 156 3 96mm pitch connector The Ext PTT is applied to a bias divider network of R93 94 amp 95 and applied to the base of Q2 Q2 conducts in the idle state holding off When PTT is switched to ground Q2 is turned off turning Q3 on and J2 pin 16 PTT is switched to ground causing the radio to transmit See circuit diagram sheet 4D Sub board for details 8 11 E amp M Interface FST 5020 2A This 18 radio independent 4 Wire 600Q balanced Tx pair and Rx pair plus 48 passive E amp M connection This interface meets telecommunications network connection safety and level requirements AS NZS 60950 ACA TS 006 Clause 5 2 2 a and 1s available on an RJ 45 PL5 connector with pin outs as per the table below E when carrier presen
46. y 2012 VERSION 1 1 COMMERCIAL IN CONFIDENCE 3 ELECTRICAL amp 3 1 Protection The Fixed Station Terminal has the following safety protection characteristics In Rush current The maximum in rush current is 40 A at 230 Vac cold start Power supply The Power supply is fully protected against overload and short circuit by an OVP circuit with shutdown Recycle AC supply to reset after 30 seconds The Fixed Station Terminal has a front panel Mains on off switch AC on indicator and Supply present indicator Output regulation 3 over 0 to 10 A and full mains variation from nominal 13 8 Vdc Output ripple and noise 300mV Peak to Peak maximum at 0 to 100 load and over the full mains voltage range Power cord IEC 230Vac 10A It is two metres in length Complies with the relevant clauses of AS NZS 60950 AS NZS 3350 1 AS NZS 3100 and AS NZS 3017 for Electrical Safety designexeexe QC PASSED MAINS INPUT 230V AC SERIAL o Shown here is the FST 5020 2A IEC power cord amp input 3 2 Safety The Power Supply is designed and tested to AS NZS 61558 2 6 2001 and AS NZS 61558 1 2000 UL1950 EN60950 EN50178 as applicable 3 3 compatibility The Motorola XTL 5000 Mobile Terminal meets the requirements of AS ANZ 3548 1995 and EN55022 Level FST 5000 Series Installation amp Service Manual G 05164G Version 1 1 Page 10 May 2012 e INBO i VERSION 1 1 CO
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