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User Manual - Eddystone Broadcast

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1. Reverted Status Information meanings of bytes reverted in response to command Title Meaning Hex ASCII Norm Status normal 4E N N Norm Status not normal 4F O Stat_Low Status low 4C L Stat_High Status high 48 H Fail Status fail 46 F Fuse Status fuse 45 E Auto Tx Drive on auto 54 T Man Tx Drive on manual 59 Y Drive A Drive preferred or on 41 A Drive_B Drive preferred or on B 42 B Drive_Pas Drive passive 50 P Drive Act Drive active unmuted 55 U Tx_Muted Tx Muted 4D M Tx_Start Tx Unmuted 53 S N_Known Not known 58 X N_Applic Not applicable 5A Z Direct Display Numerical values 30 39 0 9 Direct Display Sign 2B 2D Direct Display Decimal point 2E Direct Display Blank 00 NUL Direct Display Less than 3C lt Most meanings are general A string of fourteen information bytes would normally contain several N s each one indicating that a particular status forward power reverse power etc is Normal Some are specific A and B for example only refer to Drives A and B Direct display bytes give an immediate numerical display of power current and temperature etc even when using a basic terminal program If the E2023 contains no known good information about a particular status the X byte is reverted This occurs if the E2023 is unable to interrogate individual modules within the Transmitter and thus cannot determine their status However it
2. 15 extra bytes reverted in response to 0 sequence Title Status Possible Values ASCIl Op_Data1 Output data status request byte third byte echo fixed at ASCII 0 Op Data2 Output Forward Power Level MSB kW Op Data3 Output Forward Power Level MSB 1 kW Op Data4 Output Forward Power Level LSB 1 kW Op Data5 Output Forward Power Level LSB kW Op Data6 Output Reverse Power Level MSB W X or Op Data7 Output Reverse Power Level MSB 1 W plus Op Data8 Output Reverse Power Level LSB W minus Op Data9 Output Temperature Level MSB deg C decimal point Op Data10 Output Temperature Level MSB 1 deg C Null blank Op Datai1 Output Temperature Level LSB deg C 0 to 9 inc Op_Datai2 Output OS number MSB Op Data13 Output OS number MSB 1 Op Data14 Output OS number LSB Op Data15 Output Tx Type 0 500W 1 6 1kW 6kW 7 5kW 576050 8 9 8kW 9kW 10kW Op Data16 Output data 8 bit EOR checksum of 2 15 inc only Reverted Amplifier Data Block 15 extra bytes reverted in response to 1 to X sequences Title Function Possible Values ASCIl Amp_Datat Amp number 1 40 third byte echo of ASCII 1 9 lt gt A X Amp Data2 Amp Forward Power Level MSB lt W Amp Data3 Amp Forward Power Level MSB 1 W Amp Data4 Amp Forward Power Level LSB W Xor Amp Data5 Amp Current Level MSB Amps lt less than Amp Data6 Amp Current Level MSB 1 Amps plus
3. Amp Data7 Amp Current Level LSB 1 Amps minus Amp Data8 Amp Current Level LSB Amps decimal point Amp Data9 Amp Temperature Level MSB deg C Null blank Amp Datai0 Amp Temperature Level MSB 1 deg C 9 t0 9 inc Amp_Data11 Amp Temperature Level LSB deg C Amp Data12 Amp Forward Power status NFX Amp_Data13 Amp Current status N HX Amp_Data14 Amp Temperature status NH X Amp Data15 Amp Reverse Power status NH X Amp_Data16 Amp data 8 bit EOR checksum of 2 15 inc only Print Date 12 05 15 Page 26 of 32 57600 00MA 08 SECTION THREE OPERATION Once installed and set up as described in Section Two manual operation is limited to the two switches on the E2024 Splitter Drive Changeover Unit Various forms of automatic control can be provided using the E2023 Controller Unit This unit also provides comprehensive monitoring of power current and temperature levels etc as well as being the gateway for various extended and remote control and monitoring options 3 1 CONTROLS AND DISPLAYS The controls and displays available for each module or unit and their functions are as follows 3 1 1 E2021 Amplifier Module Marked Type Function LOCK Opto Switch To mute demute and mechanically retain the module Down position to demute and secure module Up position to mute and enable module s removal FWD LED Display Red indicates forward power fail module output power
4. Status Requests after ASCII Command gives details of status monitoring required or Controls after ASCII amp Commands gives details of control required Details of the Handshake Command Status Request and Control bytes are given in the following four tables Typical examples of controller generated sequences are as follows 21 Request to revert the status of Amplifier 1 A Sets auto drive to A amp P Sets drive mode to passive Handshake first byte sent from controller Title Function Hex ASCII Async Hshake Remote input handshake 23 Remote Input Commands second byte sent from controller Title Function Hex ASCII Query Status Status query request to revert 3F Drive Prefer Drive Aor B 25 Drive State Drive state Active or Passive 26 amp Tx Power Tx power High or Low 2C i Tx_State Tx state Mute or Start 2B Print Date 12 05 15 Page 22 of 32 S7600 00MA 08 Remote Input Status Requests third byte sent from controller after command Title Function Hex ASCII Op Stat Revert output status 30 0 Amp1 Stat Revert amplifier 1 status 31 1 Amp2 Stat Revert amplifier 2 status 32 2 Amp3 Stat Revert amplifier 3 status 33 3 Amp4 Stat Revert amplifier 4 sta
5. The 57600 range of FM Transmitters is designed to meet or exceed ETSI Standards EN 301 489 01 EN 301 489 11 ERM EMC for Radio Equipment Part 1 Common Technical Requirements ERM EMC for Radio Equipment Part 11 Specific Conditions for FM Transmitters EN 302 018 02 ERM Spectral Occupancy for the FM Radio Broadcast Services EN 60215 1989 Safety Requirements for Radio Transmitting Equipment Note that the following figures do not include any which principally depend on the Exciter Drive being used e g frequency stability The figures given below may also be affected by the Exciter Drive s performance In both cases the Exciter Drive s own manual should be consulted RF Interface Ports 50Q nominal Input Drive Power RF Input from Exciter Drive supplied 8 10W for S76005 13W absolute maximum 17 20W for S7601 25W absolute maximum 35 40W for S7602 50W absolute maximum Output Power Level With any load with a return loss gt 14dB 1 5 1 VSWR any angle though see note below in Output Power shutdown section Note two independent settings available for selection Adjustable at least 200W to 500W for S76005 Power Low setting Adjustable at least 300W to 500W for S76005 Power High setting Adjustable at least 400W to 1kW for S7601 Power Low setting Adjustable at least 600W to 1kW for S7601 Power High setting Adjustable at least 800W to 2kW for S7602 Power Low setting Adjustable
6. 56 V Amp39_Stat Revert amplifier 39 status 57 W Amp40_Stat Revert amplifier 40 status 58 X Sys_Stat Revert system status 59 Y Dri_Stat Revert drive status 5A Z Remote Input Controls third byte sent from controller after amp commands Title Function Hex ASCII A_Drive Set auto drive to A 41 A B_Drive Set auto drive to B 42 B Passive Set drive mode to passive 50 P Active Set drive mode to active unmuted 55 U Pwr_Hi Set Tx power to high 48 H Pwr_Lo Set Tx power to low 4C L Mute Set Tx to mute 4D M Unmute Set Tx to start unmute 53 S Print Date 12 05 15 Page 23 of 32 S7600 00MA 08 2 4 3 Reverted Status Monitor Information The status of the Transmitter is reverted in response to a command see section 2 4 2 After the third byte is echoed back to the remote control unit a further fifteen bytes are sent immediately from the E2023 with no delays between individual bytes each 1 start 8 data 1stop no parity NOTE that the E2023 must be left set on MAIN mode for all the amplifier module status to be kept updated section 3 3 The first fourteen of the fifteen bytes contains the specific status information requested The last byte is an exclusive OR checksum of those fourteen bytes This checksum can be used by the remote control unit to check that the information has not become corrupted The meanings of the various bytes in the information string are defined in the table below
7. CAUTION The mains supply leads two total except for the 500W single input S76005 01 where only one is used to the Transmitter must each consist of three core P N protective earth insulated cable Each core must be at least 2 5mm and the overall cable armoured type SY flexible steel armoured cable preferred and not mounted in a conduit with other supply cables Two double pole 16A C rated MCBs must be provided at the supply distribution board s to protect both leads and Transmitter supply input circuitry Also since the supply input circuitry contains filters which pass current to the Transmitter chassis the Transmitter chassis must be connected to a safety ground Also ensure whilst making any connections to the mains supply that the Transmitter s front panel Supply Disconnector is switched to off i e at O and is preferably padlocked in that position to prevent inadvertent operation of the Transmitter Each lead terminates in a separate 6 Way 16A 440V free socket at the Transmitter end which are wired as follows Pin 1 Line Pin 2 Neutral Pin 3 Prot Earth Earthing Pin Prot Earth The two leads must go via separate MCBs The armouring of the cable should also be taken to ground at the supply distribution board The free connectors should be fitted with top entry hoods An earthing bolt is provided adjacent to the mains supply input connector to allow the Transmitter chassis to be permanent
8. The lead terminates in a 15 Way free D plug at the E2023 end which is wired as follows Pin 1 Select Low Power Input continuous low to select Pin 2 Mute Transmitter Input continuous low to mute Pin 3 Output Status A continuous low state not used Pin 4 Output Status B continuous low state not used Pin 5 RS485 Data In not used Pin 6 RS485 Data In not used Pin 7 RS485 Data Out not used Pin 8 RS485 Data Out not used Pin 9 Not Connected Pin 10 Ground Pin 11 Ground Pin 12 Ground Pin 13 Ground Pin 14 Not Connected Pin 15 Not Connected Each input pins 1 2 is internally pulled up to 5V through 12kQ and must be fed from a voltage free source of less than 1kQ to ground for a low state open circuit for a high state These inputs are protected against constant application of up to 12V dc directly applied Note that they are only active when the associated E2024 Auto Mute Start switch is in the Auto position and have delays in the order of 200mS Thus they should not be used as part of a safety interlock system see 2 2 4 Each output pins 3 4 is a relay contact to ground for a low state open circuit for a high state The contacts are rated at 1mA minimum at 5V dc to 1A maximum switching current The maximum voltage including switching surges must be limited to 24V dc These outputs and pins 5 8 inc are not used
9. against constant application of up to 12V de directly applied The mute demute output pin 9 is an open collector NPN silicon low saturation switching transistor suitable for driving loads from 5V to 24V dc with maximum currents of 10mA The low state output impedance is approximately 10Q These connections are wired in accordance with the monitor and control requirements of the type of Exciter Drive s supplied and normally not all the pins will need to be connected Pin 3 if used is for connection to a remote control and monitoring system This enables selection of a particular drive to be preferred forced remotely by momentarily pulling this line to ground If automatic dual Exciter Drive changeover only requires one of the two status monitor inputs for operation the other must be connected to ground 2 2 7 Parallel standard or RS232 Serial Remote Control DTE Connector This is a 9 Way D plug PL04 at the rear of the E2023 Controller unit It is used to enable various forms of remote control and monitoring possibly requiring additional external units Multi core screened cable not exceeding 3 metres in length should be used for the interconnecting lead The lead terminates in a 9 Way free D socket at the E2023 end which is wired as follows Parallel standard Serial RS232 Pin 1 Power Output Low app 2aB rel set output Not connected Pin 2 Power Output Fail app 12dB rel max o p Received Data to E20
10. at least 1 2kW to 2kW for S7602 Power High setting Output Power Not more than 1dB under all specified operating conditions Variation Output Power Output power is automatically reduced or shutdown to ensure that any load Shutdown with return loss lt 10dB including open and short circuits does not cause any damage to the transmitter The return loss level at which shutdown starts can be increased by an internal adjustment see section 2 3 3 This level is normally set at the factory to be 16dB the level at which excess reverse power first produces a warning indication Output Reverse Intermodulation Reverse intermodulation products will be better than or equal to 10dB relative to the interfering incident signal this being offset over the range 300kHz to 20MHz but remaining within 87 5MHz to 108MHz Frequency Range 87 5 108MHz Spurious Emissions In the range 9kHz to 1000MHz Better than or equal to 75dBc S76005 Better than or equal to 76dBc S7601 Better than or equal to 79dBc S7602 Out of Band Adjacent Channel Emissions Better than or equal to 110dBc Hz at 200kHz offsets and 145dBc Hz at 2MHz When measured in a 1kHz bandwidth the limit figures become 80dBc at 200kHz offsets and 115dBc at t2MHz Print Date 12 05 15 Page 9 of 32 57600 00MA 08 Incidental Synchronous AM due to FM Amplitude Not greater than 2 with a peak deviation
11. more than approximately 6dB below that required Amber indicates forward power muted Green indicates normal operation REV LED Display Red indicates reverse power to module in excess of approximately 30W i e 10dB return loss relative to maximum module output Green indicates normal operation TEMP LED Display Red indicates module heatsink temperature greater than approximately 85 deg C Green indicates normal operation CURRENT LED Display Red indicates module current to Amplifier Pallet in excess of approximately 11A Green indicates normal operation CPU LED Display Red indicates module CPU microcontroller failure other LED displays will automatically be turned off Green indicates normal CPU operation 3 1 2 E2088 Power Supply Module Marked Type Function DC LED Display Green indicates that the supply output is above approximately 40V dc DC LED Display Red indicates that the supply output is below approximately 40V dc AC LED Display Green indicates that the input is above approximately 85V rms ac 3 1 3 E2322 Power Supply Module Marked Type Function DC LED Display Green indicates dc output gt 75 85 of its rated value AC LED Display Green indicates ac input gt 78 86Vrms Print Date 12 05 15 Page 27 of 32 57600 00MA 08 3 1 4 E2023 Transmitter Controller Unit Marked Type Function SYSTEM LED Display Red indicates
12. obtained by selecting the other Exciter Drive if fitted again using the E2024 front panel switch 15 Unless required to stay in low power operation remove enable LK1 FORCE LO POWER 16 Check that the output power displayed on the E2023 Control Unit also reads the set output power This reading will not be as accurate as the external calibrated power meter but should be within about 0 25dB approx 25W at 500W 50W at 1kW or 100W at 2kW 17 If the reading is not within this range it may be adjusted by a preset control inside the E2025 Combiner Unit To access this control slide the E2025 forwards after removing its front fixing screws and single rear fixing screw taking care not to strain any leads connected to its rear Remove front screen cover section The preset control marked CAL FWD is at the rear left hand side of the printed circuit board Care must be taken that none of the other four preset controls on the board are altered Adjust the control clockwise to increase reading or anti clockwise to decrease reading The Transmitter will now be ready for operation with audio and or data sources applied to the Exciter Drive s The manuals for the type of Exciter Drive s supplied or in use must be again consulted for information on how such sources are applied and controlled The RF Monitor connector at the left hand front of the E2025 Combiner Unit may be used to check the close in spectrum of the Transmitter output signal No
13. of 40kHz at a modulation Modulation frequency of 500Hz Asynchronous residual AM due to hum and noise with no FM modulation Not greater than 1 when measured unweighted in a 20Hz to 20kHz bandwidth Status Indications Output forward and reverse power and combiner temperature Output forward power temperature and current of any selected Amplifier module Power Supplies Cooling fans and when connected Drives status Red green pass fail led indicators on all modules Dimensions Height 12U S76005 and S7601 14U S7602 Width to fit standard 19in rack Depth to fit standard 600mm deep rack Environmental Ambient Temperature operating 5 to 50 deg C Ambient Temperature storage 20 to 70 deg C Relative Humidity operating Less than or equal to 90 non condensing with the transmitter at a higher temperature than the ambient Altitude operating Up to 3000 metres a s I Power Supply Two independent single phase inputs 176 to 264V AC 47 63Hz Apparent power factor 98 Efficiency 88 Power Supply units only Supply current at each input at 230V AC typically 4A S76005 01 with 500W RF output 2A S76005 02 with 500W RF output 4A 87601 with 1kW RF output 8A 87602 with 2kW RF output Typical overall efficiency 55 at above power levels AC in to RF out Print Date 12 05 15 Page 10 of 32 57600 00MA 08 SECTION TWO INSTALLATION CAUTION These Tr
14. that no further changeover can take place during this new settling period If the originally selected Exciter Drive then becomes good again by both fast status and slow status being continuously good for 2 seconds it will not be automatically re selected unless the newly selected drive itself fails Changeovers can occur up to 4 times after which any further changes are prohibited until the counter is automatically reset to zero after a period of about one hour after the final changeover or sooner by manual local or remote intervention To display the output power again press MAIN as previously described 3 4 2 Muting and Reduced Power Operation When muting or reduced power control is required to enable monitoring and set up press MODE then the soft key on the horizontal row beneath Power on the LCD display The LCD display will then indicate the various muting and high low power settings available automatic local remote manual and external The four soft keys below the LCD display allow local selection of the MUTE START and HIGH LOW power settings used when AUTO conirol is selected These settings can also be made using remote control To allow the system to settle any such control action also resets the automatic Exciter Drive changeover counter to zero and prevents any changeover for a period of 30 seconds see section 3 4 1 Print Date 12 05 15 Page 31 of 32 57600 00MA 08 When the E20
15. to AUTO the internal high low power setting can be over ridden by the rear panel Select Low Power Input see section 2 2 8 the second part of the display showing Low ext The order of priority is thus Low ext then High Low as selected internally When Low ext is operative the HIGH LOW soft keys are disabled being shown as x though this selection can again still be made using remote control It should be noted that auto mode has to be selected by the E2024 AUTO MUTE START switch to enable low power to be selected remotely or via the front panel The only manual mode provision for selecting low power is via an internal link which then over rides all other auto settings that might be made To display the output power again press MAIN as previously described 000 Print Date 12 05 15 Page 32 of 32 57600 00MA 08
16. 2021 Amplifier Module and of the final output forward power reverse power and temperature via the E2025 Combiner Unit It also monitors the E2088 E2322 Power Supply Modules In the situation where dual drive automatic changeover or automatic power level control is used this unit provides the necessary control Remote control and monitoring of the Transmitter can also be provided via this unit using parallel or serial data The Control Unit is microprocessor based with a back illuminated high contrast 4 line by 20 character display and separate red green System Normal indicator A robust sealed membrane keypad is provided with a sounder to indicate correct key entry The rear of the unit has separate connectors for the two independent internal Transmitter control buses connectors to monitor and control one or two Exciters a connector for power level control and a connector for parallel monitoring An RS232 monitor control port is provided on the front panel E2023 01 02 with an additional TCP IP monitor control port on the rear E2023 02 only An RS232 monitor control port is provided on the Print Date 12 05 15 Page 6 of 32 57600 00MA 08 rear panel E2023 03 04 with an additional TCP IP monitor control port on the rear E2023 04 only When the RS232 port is provided on the rear panel no parallel monitoring is available If a fault should occur within the E2023 manually operated switches on the E2024 Splitter Drive Changeover Unit can b
17. 21 For protection of control circuits within E2021 Amplifier modules If fuse blows all front panel displays on just the affected E2021 go out and its power level falls Remove Amplifier module from front taking care to release the mechanical securing locks first Smd fuseholder is at rear of unit under the screen cover 500mA F Fuse for smd holders For protection of control circuits within E2025 Combiner Unit Slide Combiner Unit forwards after removing front and_single rear fixing Littelfuse screws taking care not to strain any R451 500 If fuse blows all front panel leads connected to its rear Remove displays on just the E2025 go out front screen cover section and the overall output power level One only falls to zero Smd fuseholder is accessible underneath the screen cover on the Note if a spare fuse is not front printed circuit board right hand available one may be transferred side from one of the E2021 modules to enable operation at lower power CAUTION Ensure that the front panel Supply Disconnector is switched to off i e at O and is preferably padlocked in that position 16A T HBC For protection of internal dc supply At the bottom rear of the Transmitter 5x32mm leads to and high current circuitry the larger fuse holders grouped in ones a x1 in Fuses One per E2021 within E2021 Amplifier modules If fuse blows all front panel displays on just the affect
18. 23 Pin 3 Reverse Power High app 13 25 or 50W Transmit Data from E2023 Pin 4 Combiner Temp High app 100deg C Not Connected Pin 5 Ground Ground Pin 6 Fan Cooling System Fail Not Connected Pin 7 System Normal Not Connected Pin 8 Drive A B Selected Not Connected Pin 9 Drive Changeover on Auto Not Connected The parallel outputs are open collector NPN silicon low saturation switching transistors suitable for driving loads from 5V to 24V dc with maximum currents of 10mA The low state output impedance is approximately 100Q Each output is protected against constant application of up to 5V dc directly applied A normal non faulty condition is indicated by the output pin being pulled to ground i e low state by the switching transistor Drive A selected and Drive C O on Auto are similarly indicated Note that the serial option requires an additional internal link lead which re directs the serial remote control from the front panel COM port to the rear panel DTE connector pins 2 3 5 only Print Date 12 05 15 Page 15 of 32 57600 00MA 08 2 2 8 Second Transmitter Remote Control Connector This is a 15 Way D socket SKO5 at the rear of the E2023 Control Unit It is used to enable externally derived automatic control of Transmitter muting and high low power level setting Multi core screened cable not exceeding 3 metres in length should be used for the interconnecting lead
19. 24 AUTO MUTE START switch is set to MUTE or START i e manual control the display shows the actual switch setting and the manual setting of high low power Manual The latter can only be done by an internal link i e this setting of high low power cannot be done from the front panel In this mode the switch mute start selection can only be over ridden by the safety interlock opening and muting the Transmitter directly the first part of the display then showing Manual I Lock The automatic settings are displayed as Auto and can be set as described in the previous paragraph When the E2024 AUTO MUTE START switch is set to AUTO the display shows the automatic settings in operation As before the mute start selection can be over ridden by the safety interlock opening and muting the Transmitter directly the first part of the display then showing I Lock However auto operation also allows the internal auto mute start setting to be over ridden by the rear panel Mute Transmitter Input see section 2 2 8 the first part of the display then showing ext Mute The order of priority is thus l Lock then ext Mute then Start Mute as selected internally When I Lock or ext Mute are operative the START MUTE soft keys are disabled being shown as x though this selection can still be made using remote control Similarly with the E2024 AUTO MUTE START switch set
20. 5mm EPR insulated HOFR sheathed for high temperatures 8 Screws c w plastic cup washers and For fixing S76005 S7601 or S7602 into 19 inch rack caged nuts rack 2 Side support L brackets c w fixing For extra support to carry the Transmitter s screws and washers weight in the rack 3 9 500mA F Fuses for smd holders For protection of control circuits within E2021 Littelfuse R451 500 Amplifiers and E2025 Combiner Unit 2 8 16A T HBC 5x32mm 1 x1 in For protection of internal dc supply leads to and Fuses 4 6 3A T HBC 5x20mm Fuses high current circuitry within E2021 Amplifiers For protection of internal low current dc supply leads and of mains supply leads and circuitry intended for connection to Exciter Drives s 2 1 2 Rack Mounting If the Transmitter is not supplied ready mounted in a 19 inch rack this will be required to be done at time of installation CAUTION The 576005 57601 and S7602 i e the assembly carrying the Amplifiers Power Supplies Controller Splitter Drive Changeover and Combiner are heavy Before installation in a rack the Amplifier Modules and Power Supplies should be removed to reduce the overall weight and ease the process These units are removed from the front of the Transmitter taking care to release the mechanical securing locks first The Fan Assembly may also be opened unplugged and then removed from the rear of the Transmitter The 19 inch rack shoul
21. Eddystone Broadcast 57600 Series S76005 S7601 S7602 500W 1kW 2kW Low Power FM Transmitters Installation and Operation Issue 8 S7600 00MA 08 May 2015 Eddystone Broadcast Ltd 26 Arden Rd Arden Forest Industrial Estate Alcester Warwickshire B49 6EP England Tel 44 0 1789 762278 Fax 44 0 1789 766033 www eddystone broadcast com Print Date 12 05 15 Page 1 of 32 57600 00MA 08 Intentional blank page Print Date 12 05 15 Page 2 of 32 57600 00MA 08 Index SECTION ONE INTRODUCTION edi GENERAL DESCRIPTION kurser bred asbest tsaren Page 5 1 1 1 E2021 300W Amplifier Mod le osiin aanroer a ARRE KERALA AAT AA Page 5 1 1 2 E2088 E2322 Power Supply Module 0 cceceeeeecee neces eee eeeeeeeeeeeteeaeeeeneees Page 6 1 1 3 E2023 Transmitter Controller Unit 00 ccceceee eee ee eee eeeeee ea eee eens eeeee eats teeta eed Page 6 1 1 4 E2024 Splitter Drive Changeover Unit cccceeeeee cence cence eee eeeeeeeeeaeeeeeeeaeeeees Page 7 1 1 5 E2025 Gombiner Unita arten gassen eden dermed sedate ues Page 7 1 2 VARIANTS AND OPTIONS siaaa idad naa aer kas aariaa ak RNA AE ADi ae Page 8 1 3 TECHNICAL SPECIFICATIONS 0 0 cecee eee ee eee eee cece eee eaeeeee essa eseeaeaeeeeaeeaes Page 9 SECTION TWO INSTALLATION 2 1 PHYSICAL DIMENSIONS AND FITTING 0c cccee cence neces eee eeeeeeeeeeeeeeaeeeeaes Page 11 2 1 1 Installation tems 1 54 cite enat eds
22. Uniit ccccceeee eee eeeeeeeeeeeeee eens eeeeeeeeeeee ees Page 29 3 16 E2025 Combinets Unit tsei renien e dake Gedibeoiede shan ateveveees cdeeetdbavoare KOEN Ran Page 29 3 1 7 Supply DISconnector sitter dcevaatyeoid ne ee a tiende startere Page 29 Print Date 12 05 15 Page 3 of 32 57600 00MA 08 3 2 MANUAL CONTROL iraner stage eek seng usta es coun Page 30 3 3 MANUAL MONITORING 0 0c cceeeeeeee eee e eee eee cece asa aaa n A EA TEES Page 30 3 4 AUTOMATIG GONTROL i estetisk oe det berusede baade Page 31 3 4 1 Exciter Drive Control and Monitoring rarnnnnnnnnnnrnnnnnnvrnrnnnnnrvrnennnnervenereenennn Page 31 3 4 2 Muting and Reduced Power Operation ccccceeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeaeeeeaes Page 31 Bound at Rear 576005 01 500W Front and Rear Panel ViewWS c cccc cee cceeee eee eee essen ees S7600 04GA 576005 02 500W Front and Rear Panel Views raaruunarrnnnranvesennranvenrenenvennn S7600 03GA 57601 1kW Front and Rear Panel Views a ruuruurnnnverrennennvnnnennensvensensennenneer 57600 01GA 57602 2kW Front and Rear Panel VieWS 0 cccccce eee ee ee ee sees eee eeeeeeeeeneaes 57600 02GA Block Di gr m aa alger ae ee ke eee 57600 00BK Interconnections Circuit Diagram arnrnnnnvrarvnnennenernnnnnsenernenennenannenennenne 57600 00CT Print Date 12 05 15 Page 4 of 32 57600 00MA 08 SECTION ONE INTRODUCTION CAUTION These Transmitters operate
23. a desired fixed value using Eddystone supplied software Note that internal linking leads determine if control and monitoring is via this connector or the front panel RS232 COM port connector both cannot be used together 2 2 12 FWD REV Output Analogue Monitor Connectors These are two 50Q SMC coaxial sockets PL13 14 at the left rear of the E2025 Combiner Unit They provide DC analogue output voltages corresponding to the Transmitter output forward and reverse powers Coaxial screened cable not exceeding 3 metres in length should be used for the interconnecting leads PL13 provides the forward power indication at a level of approximately 1 5V at 250W 2V at 500W 2 8V at 1kW and 4V at 2kW limited by maximum transmitter output power PL14 provides the reverse power indication at a level of approximately 1 4V at maximum rated output power with a 15dB return loss load Both outputs are from impedances of approximately 5kQ Print Date 12 05 15 Page 17 of 32 57600 00MA 08 2 3 SETTING UP PROCEDURES 2 3 1 Fuses If any problems occur after the Transmitter has been installed and switched on fuses may need to be checked and possibly replaced However a blown or open circuit resettable fuse would generally indicate the presence of a fault which would need correcting The type function and access to fuses is as follows Type Function Access 500mA F Fuses for smd holders Littelfuse R451 500 One per E20
24. afety Interlock Connector This is a removable 2 Way 5 08mm screw terminal block PL13 at the rear of the E2024 Splitter Drive Changeover Unit A shorting link has to be made between the terminals to de mute the Transmitter the front panel INTERLOCK EXT MUTE display goes from red to green when the terminals are linked If there are no external safety interlock switches a short direct link is made this being the state in which the connector is normally supplied If connections need to be made to external safety switches this link is removed and the switches are wired in a series loop to the connector so that if any switch opens the link is broken CAUTION For the safety interlocks to work correctly the external switches and link wiring must float i e must not be grounded at any point The total loop resistance should not exceed approximately 100Q The external wiring may also be ferrite loaded for emc requirements No external voltages should be applied to this connector 2 2 5 RF Output Monitor Connector This is a 50Q BNC coaxial socket SKO1 on the left hand side of the E2025 Combiner Unit front panel This provides an harmonically filtered sample of the Transmitter s forward output power at a level into 50Q approximately 64dB below the power being delivered into the load e g approximately 0 4mW for 1kW being delivered This connector is for test purpose only with the test equipment and lead being disconnected when not i
25. and thus should not be externally connected 2 2 9 Mains Supply Output Connectors These are two standard IEC three pin L N PE sockets CONO1 and CON04 either side of the mains supply input connectors Each one is only connected via the front panel SUPPLY DISCONNECTOR switch to the mains supply input which is adjacent to it Thus equipment connected to these supplies can be arranged in two independent groups both groups being switched off when the Transmitter itself is switched off using the front panel switch The continuous total load on output each should not exceed approximately three amps Each output is protected by a 6 3A T HBC fuse FS11 and FS12 to allow for current surges at switch on Print Date 12 05 15 Page 16 of 32 57600 00MA 08 2 2 10 RS232 Serial Control and Monitor COM Connector This is a 9 Way D plug PLO1 on the right hand side of the E2023 Control Unit front panel It is used to enable down loading of status and to enable simple control using a personal computer PC directly connected to this front panel COM port Multi core screened cable not exceeding 30 metres in length should be used for the interconnecting lead The lead terminates in a 9 Way free D socket at the E2023 end which is wired as follows Pin 1 Not connected Pin2 Received Data to E2023 Pin 3 Transmit Data from E2023 Pin 4 Not Connected Pin 5 Ground Pin 6 Not Connected Pin 7 Not Connected Pin 8 Not Connected Pi
26. ansmitters operate at high RF power levels internal supply energy levels and mains supply current levels They also incorporate devices containing toxic BeO Before commencing installation it is recommended that the complete INSTALLATION section is read and understood The instructions should then be strictly followed by suitably qualified personnel otherwise sub standard or even dangerous operation may result It is also strongly recommended that a mechanical check is made of the Transmitter before it is installed and switched on This is to ensure that no loosening of connectors or damage has occurred during transit which may lead to further damage being caused at switch on The principal items to check are No obvious physical damage has occurred to the Transmitter frame modules or internal wiring All removable internal RF coaxial connectors SMA B C BNC TNC N etc are in place and tight All internal multi way connectors Ribbon D Type Molex etc are in place and secure Each E2021 Amplifier Module is pushed fully into the Transmitter with its lock switch fully pushed down do not try to force these modules home if they appear difficult to insert fully check that the locating harpoons at the rear of each module either side of its D connector are not bent Each E2088 E2322 Power Supply Module is pushed fully into the Transmitter with its locking lever engaged do not try to force these modules home if they appea
27. at high RF power levels internal supply energy levels and mains supply current levels They also incorporate devices containing toxic BeO Installation operation and maintenance of this unit must therefore only be carried out by suitably qualified personnel familiar with and fully utilising the safety procedures such equipment demands NO attempt at installation should be made without full reference to and compliance with SECTION TWO INSTALLATION NO attempt at internal maintenance should be made without full reference to and compliance with the appropriate sections apart from fuse changing which is detailed in INSTALLATION 1 1 GENERAL DESCRIPTION The S7600 Series of Low Power FM Transmitters provide output powers of up to and including 2kW used singly or 4kW using combined pairs in the standard Band Il frequency range of 87 5 108MHz They are normally supplied with either one or two Exciters capable of generating a standard mono or stereo FM signal from a variety of analogue or digital audio or data sources including left right audio MPX RDS SCA DARC etc lt is important to note that the Exciter s supplied will depend on the user s actual requirements in this regard which therefore must be clearly specified at time of ordering The Transmitters are totally self contained including forced air cooling and can be mounted as a complete unit less Exciters within a standard 19 inch rack with at least 600mm depth and 12U hei
28. cates normal operation FWD LED Display Red indicates forward power fail with output power more than approximately 6dB 500W Transmitters to 12dB 2kW Transmitters below that required Green indicates normal operation FANS LED Display Red indicates one or both cooling fans are taking no current Green indicates normal fan operation CPU LED Display Red indicates unit CPU microcontroller failure other LED displays will automatically be turned off except HIGH and LOW POWER Green indicates normal CPU operation 3 1 7 Supply Disconnector Marked Type Function O and I Switch 4 pole To switch incoming mains supply on I or off O For extra safety whist working on the Transmitter or its antenna or load this switch may be padlocked in the off position Print Date 12 05 15 Page 29 of 32 57600 00MA 08 3 2 MANUAL CONTROL Simple manual control of the Transmitter can be performed using the three way lockable toggle switches on the front of the E2024 Splitter Drive Changeover Output unit The AUTO MUTE START switch can be used to manually mute or start demute the Transmitter The AUTO SELECT A SELECT B switch can be used to manually select Exciter Drive A or B As long as neither switch is in the AUTO position the E2023 Controller can be removed without affecting Transmitter local operation although no display of actual output power will be pr
29. cates which Exciter Drive is connected to the Transmitter input The other LED remains off AUTO Lockable Toggle To manually select Exciter Drive A or B or in AUTO to enable SELECT AB Switch 3 Way the selection to be made directly by the E2023 Controller DRIVE A B LEDs confirm selection INTERLOCK LED Display Red indicates the safety interlock connector at the rear of the EXT MUTE unit is open circuit i e link broken Green indicates normal operation AUTO MUTE Lockable Toggle To manually mute or start demute the Transmitter or in and START Switch 3 Way AUTO to enable this to be done directly by the E2023 Controller 3 1 6 E2025 Combiner Unit Marked Type Function HIGH POWER LED Display Green LED indicates high power output setting selected and and adjacent pot can be used to directly set output power level Adjustable Pot The LOW POWER LED will be off 20T LOW POWER LED Display Green LED indicates low power output setting selected and and adjacent pot can be used to directly set output power level Adjustable Pot The HIGH POWER LED will be off 20T TEMP LED Display Red indicates unit heatsink temperature greater than approximately 100 deg C Green indicates normal operation REV LED Display Red indicates reverse power to Transmitter in excess of approximately 13W 25W or 50W i e 16dB return loss relative to maximum Transmitter output of 500W 1kW or 2kW Green indi
30. control connectors go to one of two independent internal Transmitter control buses Each control bus has its own RS485 data bus which is used to carry the monitored serial information from the amplifier to the E2023 Controller Each bus also has its own power level control line derived from the E2025 Combiner Unit to set the power level of each amplifier module and thus the final transmitter output power Various versions of the 300W Amplifier Module may be supplied These versions have slightly different internal circuitry They are however interchangeable but to maximise output power all modules should ideally be of the same version 1 1 2 E2088 E2322 Power Supply Module Any given Transmitter can only accept either E2088 or E2322 modules not both Two of these are provided on the S76005 and S7601 with four on the S7602 two more on the P options The modules are equally grouped into two supplies A and B with independent mains supply connectors to enable operation from dual mains supplies The 500W S76005 may optionally be supplied with just one module connector The E2088 E2322 modules in each group are current OR d together Thus on the P option where the extra module is fitted the current lost when any single module in the group fails can still be supplied by the remaining module s in the group The A supply provides a supply bus to the one two or four E2021 Amplifier Modules on the right hand A sid
31. d be of standard 600mm depth and at least 12U height for the S76005 or 7601 or 14U for the S7602 Additional height will be required if Exciter Drive s are to be fitted into the same rack recommended These should be fitted below the actual Transmitter section for ease of inter wiring Additional bottom support L brackets are also be required at each side below the Transmitter to help carry its weight The Transmitter is then fixed to the front of the racking using eight screws plastic cup washers and caged nuts The Amplifier modules Power Supplies and Fan Assembly can then be refitted and external connections made Print Date 12 05 15 Page 12 of 32 57600 00MA 08 2 2 EXTERNAL CONECTIONS 2 2 1 Mains Supply Connectors These are two independent 6 Way plugs at the rear of the Supply Disconnector section CON02 and CONO3 Having two enables use of independent A B power sources with the same or different phases Each supply must be single phase 176V to 264V AC 47 63Hz The maximum current drawn from each supply at 230V AC is in the order of 2A for the S76005 02 4A for the S76005 01 or S7601 or 8A for the S7602 CAUTION The S76005 S7601 and S7602 MUST NOT be operated at voltages significantly below 176V as the supply current may exceed the rating of the two 2x16A mains supply connectors and associated wiring and components Fitting of the specified MCB see next paragraph will ensure this cannot occur
32. e of the transmitter The B supply provides a separate bus to the one two or four Amplifier Modules on the left hand B side Single units requiring power E2023 E2024 and E2025 and both cooling fans are supplied from both supply buses All supplies are switched via a single front panel safety switch The switch can be padlocked in the off position to ensure that the transmitter remains off whilst work is being carried out at the antenna etc Each E2088 E2322 Power Supply Module has its own forced air cooling output control and monitoring circuitry and generates a regulated 50V to 53V dc supply Apart from on the single module 500W variant failure of a single Power Supply Module leaves the Transmitter still operating but with a 6dB reduction in output power As with the Amplifier Modules each E2088 E2322 Power Supply module can be removed or replaced within seconds whilst the Transmitter is operating Red green fault displays relatively low weight and small size again feature 50 53Vdc outputs for each Amplifier for all the low power single units and mains supplies for each Exciter are provided via separate fuses at the rear of the Transmitter The Power Supply monitor connectors go to one of two independent internal Transmitter control buses and hence to the E2023 Controller 1 1 3 E2023 Transmitter Controller Unit This single unit provides comprehensive monitoring of the forward power current and temperature of each E
33. e used for basic control of the Transmitter This enables it to be kept on air whilst the E2023 is replaced 1 1 4 E2024 Splitter Drive Changeover Unit This single unit interfaces between the Exciter s and the multiple E2021 Amplifier Module inputs The splitter section within the unit is either two way S76005 four way S7601 or eight way S7602 and consists of the appropriate number of cascaded two way Wilkinson 3dB power splitters These all use standard 75Q coaxial cable with 100Q balance loads and are thus easily repaired if any become damaged All outputs are brought to SMC connectors at the rear of the unit Phase length matched 50Q coax leads then connect these outputs to the E2021 inputs A front panel lockable toggle switch is provided to manually mute or start i e demute the Transmitter or can be set to enable the E2023 Control Unit to select high low power or to mute demute the Transmitter as part of an automatic control sequence An interlock switch connector is also provided on the rear to enable the open circuiting of external switches placed at safety points e g at Antenna access gates to automatically mute the Transmitter The state of this circuit is displayed on a front panel indicator As with the E2023 the rear of the E2024 has separate connectors for the two independent internal Transmitter control buses The E2024 can also provide manual or automatic dual drive changeover in conjunction with the E2023 Con
34. ed E2021 go out and its power level falls to zero twos or fours on the left right hand sides Note FS number and position mirrors amplifier number and position CAUTION these are high energy circuits and thus care must be taken if replacing the fuse with power on 6 3A T HBC 5x20mm Fuses For protection of internal low current dc supply leads At the bottom rear of the Transmitter the single smaller fuseholders on the left and right hand sides FS9 10 Two only Internal low current supplies are dual redundant thus the loss of one CAUTION these are high energy fuse produces no failure only circuits and thus care must be taken E2023 display warning If both if replacing the fuse with power on blow E2023 E2024 and E2025 front panel displays all go out and the overall output power level falls 6 3A T HBC For protection of mains supply At the bottom rear of the Transmitter 5x20mm Fuses Two only leads and circuitry intended for connection to Exciter Drive s the single smaller fuseholders adjacent to the associated mains output sockets FS11 12 CAUTION these are high energy circuits and thus care must be taken if replacing the fuse with power on Print Date 12 05 15 Page 18 of 32 57600 00MA 08 0 75A Hold RXE 60V Resettable Fuses For protection of the dual fan cooling unit If the fuse goes high impedance On Fan Connector board inside top rea
35. esent In this situation individual modules and units will still display their own status on red green LEDs Note that it is important that these switches are only left in their AUTO positions as required in Section 3 4 if the automatic operations described in Section 3 4 are actually in use 3 3 MANUAL MONITORING The E2023 Controller Unit is primarily used to monitor the Transmitter s final output power etc and to monitor the state of each individual E2021 Amplifier Module Other functions are available which mainly relate to the automatic control optional features To display the Transmitter s final output forward and reflected powers press MAIN on the E2023 Controller front panel No matter what state the Controller is in pressing this key will always display the final output power A short beep from the internal sounder indicates a valid key press In this state the E2023 will monitor the output power via the E2025 Combiner Unit several times per second It also polls through the E2021 Amplifier Modules to internally record their power temperature and current status A complete poll of all E2021s takes up to one second NOTE that when Amplifier Module status is being interrogated via remote monitoring the E2023 mode must be left in MAIN to ensure that the Modules continue to be polled and their latest status recorded section 2 4 3 To display individual E2021 statuses press MODE then the soft key on the horizontal ro
36. ght up to 1kW or 14U up to 2kW Pairs including drives can be accommodated in racks of 42U height All that is required is a connection to a mains supply to an antenna and to the Exciter Drive s When used in pairs to generate up to 4kW an additional two way splitter combiner and approximately 1kW balance load is also required In this situation additional manual patching or manual automatic switching can be provided as an option to direct all of one Transmitter s power to the antenna The key feature of The S7600 series is its ability to remain on air The use of multiple Amplifier and Power Supplies Modules and dual power supply and control circuitry means that if failures do occur it normally only results in a reduction of output power Furthermore the lightweight hot pluggable Amplifier and Power Supply Modules can be easily replaced in seconds without having to go off air Provision for dual Exciter Drive automatic changeover and for connection to a second active passive reserve S76XX or S79XX i e 500W to 10kW Transmitter is also made further enhancing the ability to remain on air Each Transmitter consists of a number of modules described as follows 1 1 1 5 inc Front and rear views block and circuit diagrams showing these modules are bound at the rear of this manual S7600 01GA S7600 02GA S7600 03GA S7600 04GA S7600 00BK and S7600 00CT Workshop editions of this manual contain extra infor
37. he Fan Connector Board is removed this board is inside the Transmitter at the top rear Page 19 of 32 57600 00MA 08 10 Slowly increase the selected Exciter Drive s output power until 500W on S76005 1kW on 57601 or 2kW on S7602 is just obtained To ensure complete accuracy an external calibrated power meter should be used to measure this output power Increase the input level by a further 1dB approximately 20 In no case however must the input power exceed 13W on the 576005 25W on the 87601 or 50W on the S7602 The output power should rise above 500W 1kW or 2kW 11 If a second Exciter Drive is fitted repeat step 10 with the E2024 front panel switch set at SELECT A or SELECT B to connect it to the Transmitter itself 12 With the Exciter Drive power set as described turn the HIGH POWER control anti clockwise until the measured output power falls back to 500W 1kW or 2kW or less if required Check the same power is obtained by selecting the other Exciter Drive if fitted using the E2024 front panel switch 13 Link LK1 FORCE LO POWER on the Combiner Fan Connector Board The LOW POWER display on the E2025 should come on in place of the HIGH POWER display 14 With the Exciter Drive power still set as described turn the LOW POWER control anti clockwise until the output power falls back to the level required typically down to approximately half of the Transmitter s maximum rated output Check the same lower power is
38. itter Drive Changeover front panel switches are set to MUTE and either SELECT A or SELECT B i e not AUTO Disconnect all E2021 Amplifier modules by releasing their front mechanical locks and pulling them slightly forward Apply power to the Transmitter i e ensure supply distribution 16A MCBs are on and the front panel Disconnector switch is at on i e at T Ensure all displays are on red green or amber except disconnected E2021s else follow fuse checking procedure as detailed in section 2 3 1 fault finding may be required if this occurs Check Exciter Drive s are operating Check the E2024 INTERLOCK EXT MUTE display is green if red ensure the safety interlock link at the rear of this unit is made Set the Exciter Drive s power output to minimum which must be less than 13W S76005 25W S7601 or 50W S7602 and frequency to that required Reconnect all E2021 Amplifier modules ensuring their mechanical locks are remade and ensuring all their displays come on at red green or amber if not again check fuses Set the E2024 Splitter Drive Changeover front panel switches to START and SELECT A or SELECT B to connect an Exciter Drive to the Transmitter itself Set the E2025 Combiner Unit s front panel HIGH POWER and LOW POWER twenty turn controls to fully clockwise i e maximum power setting Ensure that the HIGH POWER control display is on If the LOW POWER display is on check that the link LK1 FORCE LOW POWER on t
39. ling status NFX Tx_Data7 Tx A 50V line status NEF Tx_Data8 Tx B 50V line status NEF Tx_Data9 Tx C 50V line status NF Tx_Data10 Tx D 50V line status NF Tx_Data11 Tx power auto man status TY Tx Data12 Tx power man start mute status MSZ Tx Data13 Tx power true high lo setting status HL X Tx Data14 Tx power auto start mute status MS Tx Data15 Tx power auto high lo setting status HL Tx Data16 Tx status 8 bit EOR checksum of 2 15 inc only Reverted Drive Data Block 15 extra bytes reverted in response to Z sequence Title Status Possible Values ASCII Dri Data1 Drive data status request byte third byte echo fixed at Z Dri Data2 Drive C O auto man status TY Dri_Data3 Drive on A B status AB Dri_Data4 Drive preferred A B status AB Dri Data5 Drive active passive status PU Dri Datas Drive A slow status NF Dri Data7 Drive A fast status NF Dri Data8 Drive B slow status NF Dri Data9 Drive B fast status NF Dri Data10 Drive A pass fail NF Dri Datat11 Drive B pass fail NF Dri_Data12 Drive C O count 01234 Dri_Data13 Tx external mute status MS Dri Data14 Tx external high low status HL Dri Data15 Tx external interlock status MS Dri Data16 Drive status 8 bit EOR checksum of 2 15 inc only Print Date 12 05 15 Page 25 of 32 57600 00MA 08 Reverted Output Data Block
40. logue Monitor Connectors cccceeeeeeeee eect eeeeeeeees Page 17 2 3 SETTING UP PROCEDURES ee eera aoe erae paana aE ana oke ina A T Page 18 231 PUSCS E E E A E ance ties A A E E E T Page 18 2 3 2 Output Power Level and Frequency Adjustment ccecceeeeeeeeeceeeee eee eeeeeeees Page 19 2 3 3 Reverse Power Trip Level AdjUStMent ccceeeeeeeee ee ee ee eee een ea teen eset ee eeeen ease Page 20 2 3 4 Serial Remote Control Baud Rate Setting ccccceceeeeeee eee eeeeee eee eeeeeeaeeeeees Page 21 2 4 SERIAL REMOTE CONTROL AND MONITORING 0 c eceeeeeeeeeeeeeeeeeeeeeeee Page 22 2 41 Intr duetonusuutssjenrsern altere reel mkedsnet Page 22 2 4 2 Control Commands and Status Monitor Requests arnrranurnnnnvnvrvrnrnnnnrrrenennnn Page 22 2 4 3 Reverted Status Monitor Information xrarnrrarnnrnnnervnnennennreenennenereenerennersenen Page 24 SECTION THREE OPERATION 3 1 CONTROES AND DISPLAYS 2 edikt eteren S N at a ze rpm ed Page 27 3 1 1 E2021 Amplifiler Module i nsnrnietsdie astra bade trinnet Page 27 3 1 2 E2088 Power Supply Module rrnnronoronnnrnnnnnrnnernnrrrnenennnnennennnnenennenenennenenn Page 27 3 1 3 E2322 Power Supply Module cccceeeeeeeceeeee eee ee eee eeeee ee eea essa eeeeaeeeeees Page 27 3 1 4 E2023 Transmitter Controller Unit c cccccee cee eee eee cece ee eeeeeeea sense eeeeeaeeeeaas Page 28 3 1 5 E2024 Splitter Drive Changeover
41. ly bonded to nearby safety ground directly or via rack metalwork Print Date 12 05 15 Page 13 of 32 57600 00MA 08 2 2 2 RF Output Antenna Connector CAUTION When operating high RF Voltages are present on this connector Always ensure when making connections here or working on any load connected that the Transmitter s front panel Supply Disconnector is switched to off i e at O and is preferably padlocked in that position This is a 50Q 7 16 coaxial socket on the E2025 Combiner Unit s output directional coupler at the top rear of the Transmitter Care must be taken to use adequately rated at maximum ambient temperature low loss cable for the lead to the antenna or load 2 2 3 RF Input Exciter Drive s Connectors CAUTION When operating high RF Voltages may be present on these connectors Always ensure when making connections here or working on any load connected that the drive source s to the Transmitter are switched off or safely muted These are three 50Q TNC coaxial sockets at the centre rear of the E2024 Splitter Drive Changeover Unit Socket SKO8 Drive A is for connection a single Exciter Drive s RF Output When dual drive changeover is supplied socket SKO6 Drive B is used for connection to the second Exciter Drive s RF Output In this case socket SKO7 Load is used for connection a 50Q Exciter Drive dummy load normally situated in the section of the rack where the Exciter Drives are fitted 2 2 4 S
42. mation also bound at the rear which gives detailed test procedures circuit diagrams assembly diagrams layouts and parts lists 1 1 1 E2021 300W Amplifier Module Two on S76005 500W four on S7601 1kW or eight on S7602 2kW of these are provided each with their own independent control and monitoring circuitry This circuitry includes reverse power supply current and temperature monitoring to shut down and protect individual modules Failures in a single Amplifier Module only tend to give a reduction in power with the Transmitter still operating with several modules having failed in the S7601 and S7602 Each Amplifier Module can be removed or replaced whilst the Transmitter is operating hot pluggable This feature means that if failures do occur modules can be replaced within seconds without having to go off air Red green fault displays on the front of each module help indicate the faulty module to be replaced this normally restoring the Transmitter s full output without any further immediate technical investigation being required The relatively low weight and small size of each module assist their actual transport to site Print Date 12 05 15 Page 5 of 32 57600 00MA 08 Each Amplifier also has its own front panel mute switch which is mechanically interlocked so that it has to be operated before the module can be removed All other signal 50V dc supply and control connectors are at the rear of the unit The
43. mbient temperature 1 3 TNC 500 RF coaxial free plug s For connection to leads from Exciter Drive s and their dummy load Print Date 12 05 15 Page 11 of 32 57600 00MA 08 with suitable free connector rated in excess of Exciter Drive output power at maximum ambient temperature Typical Description Function Quantity Length Low loss 50Q RF coaxial cable rated RF input and dummy load leads as req d in excess of Exciter Drive output power at maximum ambient temperature 1 Coaxial 87 5 108MHz 50Q load Exciter Drives dummy load 1 2 Way 10A 5 08mm pitch screw terminal block c w wire shorting link e g Weidmuller BL5 08 2 External safety interlock connector wire shorting link is removed when connector is wired to external safety circuits 1 2 9 Way D plugs c w covers For connection to leads from control monitor inputs of Exciter Drive s 1 2 9 Way D sockets c w covers For connection to parallel and serial RS232 remote control monitor links 1 15 Way D plug c w cover For connection to additional control monitor input links Length Multi core screened cable number of Control monitor leads as req d cores as required Length Heavy gauge grounding wire strap For safety earth lead as req d 1 2 IEC 6A free plug to free socket mains For fused and switched mains supply leads 1 metre 3 core each connections to Exciter Drive s 0 7
44. n 9 Not Connected Note that the assigned pin numbers and their functions are for a standard 9 pin plug on Data Terminal Equipment DTE such as computers Standard crossover or null modem leads may thus be used for connection to a personal computer or PC The length of the interconnecting lead may be extended by use of compatible RS422 485 or fibre optic line drivers Note that the internal connections to this connector may be re directed to the rear panel DTE connector PL04 by the use of an optional internal link lead see section 2 2 7 Full details of serial remote control procedures via this connector are given in Section 2 4 2 2 11 TCP IP Control and Monitor Connector T option only This is a standard RJ45 connector SK08 mounted in an additional screened box fitted to the rear of the E2023 02 or E2023 04 Control Unit This enables all the control and monitoring detailed in Section 2 4 to be performed using TCP IP Transmission Control Internet Protocol This arrangement requires the unit to be assigned a unique Internet Protocol address When first connected to the network via its RJ 45 connector the E2023 s TCP IP adapter will attempt to acquire an IP address automatically it s quite common to have networks configured to use DHCP which provides these addresses on demand The address to which a device has been assigned can then be determined and if required be overridden with
45. n use NOTE that the levels of any harmonics present are not necessarily equal to those at the antenna 2 2 6 Drive A B Monitor and Control Connectors These are two identical 9 Way D sockets SK03 and SKO6 at the rear of the E2023 Controller unit These are used to enable one or two Exciter Drive s to be monitored and controlled by the E2023 with two Exciter Drives this enables automatic dual Exciter Drive changeover Multi core screened cable not exceeding 3 metres in length should be used for the interconnecting leads Print Date 12 05 15 Page 14 of 32 57600 00MA 08 Each lead terminates in a separate 9 Way free D plug at the E2023 end which is wired as follows Pin 1 RS232 Data from Drive not enabled Pin2 Ground Pin 3 Prefer Drive from Rem Control Momentary low gt approx 1sec Pin 4 Slow Status Monitor from Drive Continuous low gt 2secs registers good Continuous high gt 10secs registers fail Pin 5 Fast Status Monitor from Drive Continuous low gt 2secs registers good Continuous high gt 2secs registers fail Pin 6 RS232 Data to Drive not enabled Pin 7 Ground Pin 8 Ground Pin 9 Mute demute to Drive Continuous low to mute Each input pins 3 4 5 is internally pulled up to 5V through 12kQ and must be fed from a voltage free source of less than 1kQ to ground for a low state open circuit for a high state These inputs are protected
46. odules on the right hand A side of the Transmitter and the other for the Amplifier Modules on the left hand B side Rear panel connectors give analogue dc output levels indicating the forward and reverse powers generated 1 2 VARIANTS AND OPTIONS The main variants and their constituent modules and units are as follows Amplifier Power Transmitter Splitter and Combiner Modules Supplies Auto Cont Drive C O Unit 576005 01 2 off 1 off Single Single Single 500W Max E2021 XX E2088 01 E2023 XX E2024 03 E2025 03 or E2322 01 576005 02 2 off 2 off Single Single Single 500W Max E2021 XX E2088 01 E2023 XX E2024 03 E2025 03 or E2322 01 57601 01 4 off 2 off Single Single Single 1kW Max E2021 XX E2088 01 E2023 XX E2024 01 E2025 01 or E2322 01 57602 01 8 off 4 off Single Single Single 2kW Max E2021 XX E2088 01 E2023 XX E2024 02 E2025 02 or E2322 01 The options defined by a letter suffix are as follows P Fitted with two additional E2088 E2322 Power Supply Modules or one only additional on S76005 01 IT Fitted with TCP IP Remote Control E2023 02 or E2023 04 Controller Examples are as follows 576005 01 Standard 500W with single E2088 E2322 576005 02 P 500W with two additional PSUs four total 57601 01 Standard 1kW 57602 01 P 2kW with two additional PSUs six total Print Date 12 05 15 Page 8 of 32 57600 00MA 08 1 3 TECHNICAL SPECIFICATIONS
47. one or more system conditions are abnormal NORMAL and should be cleared Green indicates all significant system conditions are normal Amber indicates Power on Reset period CONTRAST Adjustable Pot 1T To set the contrast of Controller s liquid crystal display LCD for best contrast in the prevailing viewing and ambient temperature conditions MAIN Membrane Switch To directly select the main LCD screen showing the Transmitters output forward power reverse power state and combiner heatsink temperature MODE Membrane Switch To select other Controller functions modes such as Amplifier module monitoring A Membrane Switch To step upwards through choices offered in the mode selected v Membrane Switch To step downwards through choices offered in the mode selected Unmarked Membrane Switches To select various choices offered in the mode selected Soft keys Unmarked 20 Character by 4 Indicates present mode middle of top line with status Display line LCD back illum input parameters etc and next key operation choices inated by LEDs below Note an internal sounder indicates correct membrane switch key operation by a single beep or an invalid key input by a short series of beeps Print Date 12 05 15 Page 28 of 32 57600 00MA 08 3 1 5 E2024 Output Splitter Drive Changeover Unit Marked Type Function DRIVE AB LED Displays Green LED indi
48. onitor the output forward and reverse power A sample of the forward power is also directed to a front panel BNC connector for easy connection to test equipment The E2025 also contains circuitry to measure the Transmitter s final output forward and reverse powers via the output coupler the temperature of the Combiner s integral dumping load heatsink and the currents in the Transmitter s dual cooling fans Front panel red green displays indicate any fault condition Two multi turn preset potentiometers are accessible via the front panel to enable independent setting of two Transmitter output powers They are selected using various forms of local external or remote control or via a link on the Combiner Fan connector Board see section 3 4 2 The single E2025 control connector goes to the two independent internal Transmitter control buses via the Combiner Fan connector Board where it monitors the dual fans currents As previously detailed each control bus has its own RS485 data bus one of which is used to carry the monitored serial information from the E2025 to the E2023 Control Unit For these two buses the E2025 also provides two equal but independent power level control voltages derived from either the front panel High or Print Date 12 05 15 Page 7 of 32 57600 00MA 08 Low Power potentiometers to set the power level of the E2021 Amplifier Modules and thus the final Transmitter output power One control voltage is used for the Amplifier M
49. r of Transmitter Note this fuse will automatically reset if Resettable Fuse One only If the fuse goes high impedance the E2023 front panel displays will all go out and any automatic control will cease Two the fan which it supplies will not the front panel Disconnector switch is operate and the FANS display on temporarily set to off i e to O or if the the front of the E2025 Combiner Fan Unit is temporarily disconnected Unit will go from green to red from the Fan Connector board 3A Hold For internal protection of E2023 Inside E2023 on rear Interface Board RUE 30V Controller unit Note this fuse will automatically reset if the front panel Disconnector switch is temporarily set to off i e to O or if the E2023 is temporarily disconnected from the Control Bus Boards at both sides of the rear of the Transmitter 2 3 2 Output Power Level and Frequency Adjustment If the Transmitter is not supplied with preset output power levels and frequency its front panel HIGH POWER and LOW POWER controls and the Exciter Drive s power output and frequency will need to be set The manuals for the type of Exciter Drive s supplied or in use must be consulted for information on how the settings required of them are actually made The procedure is as follows 1 Print Date 12 05 15 Ensure the Transmitter has been installed as detailed in sections 2 1 and 2 2 and that the E2024 Spl
50. r advanced too far clockwise this may cause a decrease in output power with less than 13 25 or 50W reverse power i e with a relatively good antenna system and with the E2025 REV led still green 2 3 4 Serial Remote Control Baud Rate Setting The operating Baud rate and be viewed and changed if required by pressing MODE on the E2023 Transmitter Control Unit continuously for about 3 seconds The screen will then change to show the present rate and the four soft keys below can be used to select 2400 4800 9600 or 19200 Baud The screen will time out in about 3 seconds after entry or after the last press of one of the four soft keys Timeout is counted down on the display The Baud rate is held in non volatile RAM and is error checked at power on reset defaulting to 9600 if any Baud rate store error found Print Date 12 05 15 Page 21 of 32 57600 00MA 08 2 4 SERIAL REMOTE CONTROL AND MONITORING 2 4 1 Introduction Serial control via the front panel COM PORT connector section 2 2 10 uses asynchronous data 1 start 8 data 1 stop bit no parity at 2400 4800 9600 or 19200 Baud Control commands and status monitor requests are detailed in section 2 4 2 The content of status monitor information reverted from the E2023 is detailed in section 2 4 3 The T option also enables the same functions using TCP IP via a rear panel RJ45 connector section 2 2 11 Selection of front panel COM port or rear panel RJ45 is made using internal link lead
51. r difficult to insert fully check the connectors at the rear of the module 2 1 PHYSICAL DIMENSIONS AND FITTING 2 1 1 Installation Items Various installation items are required A list of these including spare fuses is given below Actual requirements depend on the configuration of the equipment supplied e g with or without Exciter Drive s separate to or already fitted into a 19 inch rack whether or not leads are supplied ready made etc Note that extra unlisted parts may be required for connections to any Exciter Drive s that are supplied see manuals supplied with them Typical Description Function Quantity 2 6 Way 16A 440V free sockets with For connection to leads from mains supply top entry hoods distribution point e g Contact Connectors H BE part numbers 10 1910 for insert Note only one required on S76005 01 and 10 0110 12 9543 for hood 2 3 core 2 5mm per core type SY Mains supply leads Length flexible steel armoured cable Note only one required on S76005 01 as req d 2 16A C rated 2 pole miniature circuit Fitted at mains supply distribution point to breakers MCBs protect supply leads and mains input components in the Transmitter Note only one required on S76005 01 1 7 16 RF coaxial free plug For connection to lead from Antenna or RF output load Length Low loss 50Q RF coaxial cable rated RF output lead as req d in excess of Transmitter output power at maximum a
52. rmal status has failed the front panel SYSTEM NORMAL led will change from green to red To display individual overall System Normal statuses press MODE then the soft key on the horizontal row beneath System on the LCD display An individual status can then be monitored by pressing the A or v keys on the left hand side of the LCD display To display the output power again press MAIN as previously described Print Date 12 05 15 Page 30 of 32 57600 00MA 08 3 4 AUTOMATIC CONTROL The E2023 Controller Unit also enables various forms of automatic control such as dual Exciter Drive changeover muted reduced power operation etc or any normal combination of them For dual Exciter Drive changeover the E2024 AUTO SELECT A SELECT B switch must be set to AUTO For muted reduced power operation the AUTO MUTE START switch must be set to AUTO 3 4 1 Exciter Drive Control and Monitoring When dual Exciter Drives are connected to the E2023 to enable monitoring and set up press MODE then the soft key on the horizontal row beneath Drives on the LCD display note that a single Exciter Drive can also be monitored or controlled in this way The LCD display will then indicate which Exciter Drive is selected and will indicate whether it is normal or fail If the other Exciter Drive is passive i e in a muted state the display will show By pressing the soft key beneath Act Pas the non
53. s The rear panel DTE port PL04 may also be used as the COM port in place of that on the front panel see section 2 2 7 again by using internal links The individual data bytes are defined in ASCII form to enable basic control and monitoring using a PC running a terminal program However a PC program with a dedicated textual and or graphical user interface is required for proper implementation of a remote control and monitoring system Eddystone Broadcast should be contacted for further information regarding such programs and hardware implementations using the RS232 port directly or via USB or TCP IP adaptors 2 4 2 Control Commands and Status Monitor Requests All command and status monitor requests are initiated by the remote control unit PC the E2023 never outputs any serial data via the COM PORT connector unless requested to by that unit The remote control unit always sends a sequence of three bytes waiting for each byte to be echoed correctly before the next one is sent which must be within 500mS of the previous one A wait of 500mS is also recommended before the sequence is timed out and aborted A new sequence of three bytes then can be attempted Note that an echo will not be returned when an invalid sequence is detected by the E2023 The three bytes are First byte Handshake always ASCII indicates start of sequence Second byte Command indicates form of control or status monitoring Third byte
54. selected Exciter Drive can be toggled between muted passive or demuted active This choice can also be made using remote control When the E2024 AUTO SELECT A SELECT B switch is set to SELECT A or SELECT B i e manual control the top row of the display shows which Exciter Drive A or B would be preferred or forced when AUTO control is later selected A or B can be selected using the soft keys the rear panel inputs or remote control When the E2024 AUTO SELECT A SELECT B switch is set to AUTO the top row of the display shows the number of automatic changeovers 0 to 4 since it was last reset Exciter Drive A or B can again be preferred or forced by using the soft keys the rear panel inputs or remote control Any such control action resets the automatic changeover counter to zero the 0 flashing for approximately 30 seconds to indicate that no actual changeover can take place during this settling period An automatic changeover can then occur if the selected Exciter Drive fails by either a continuous fast status failure for 2 seconds or a continuous slow status failure for 10 seconds If the non selected Exciter Drive is passive the changeover will always take place If the non selected Exciter drive is active the changeover will only occur if it is registered as not failed A changeover will increment the counter the new displayed number again flashing for approximately 30 seconds to indicate
55. should be noted that certain Transmitters do not have every amplifier or power supply module fitted status of such modules is thus returned either as X s amplifiers or as F power supplies The Revert Output Status Request ASCII 0 returns the Transmitter type and can be used by the Remote Control Unit to determine whether a particular module should in fact be missing and its status not known Note that the information returned may have a latentcy of one to two seconds since the E2023 can take that amount of time to collect the status of all the individual amplifier modules The following four tables detail the contents of the various strings of reverted status information The final column in each defines which ASCII values a particular byte can have The table above defines the meanings of these values The first byte in each table is the echo of the third byte sent from the remote control unit Print Date 12 05 15 Page 24 of 32 57600 00MA 08 Reverted System Data Block 15 extra bytes reverted in response to Y sequence Title Status Possible Values ASCIl Tx Data1 Tx data status request byte third byte echo fixed at Y Tx Data2 Tx system normal status NO Tx Data3 Tx forward power status NLFX Tx Data4 Tx reverse power status NHX Tx Datas Tx combiner temp status NHX Tx Data6 Tx fans coo
56. te that any harmonic levels shown will not necessarily indicate those present at the Transmitter output Any test equipment should not however normally be left connected 2 3 3 Reverse Power Trip Level Adjustment If the REV led on the E2025 Combiner Unit is intermittently or permanently red this indicates that the level of reverse power is greater than about 13W on S76005 25W on 87601 or 50W on 87602 This shows that the antenna system connected to the Transmitter is relatively poor If the Transmitter s reverse power trip point is set too low this may cause a reduction in the available output power As long as the E2021 Amplifiers REV leds are not also red the trip point setting can be increased to help maintain full output power although the REV warning may still be displayed The reverse power trip point may be adjusted by a preset control inside the E2025 Combiner Unit To access this control slide the E2025 forwards after removing its front fixing screws and single rear fixing screw taking care not to strain any leads connected to its rear Remove front screen cover section Print Date 12 05 15 Page 20 of 32 57600 00MA 08 The preset control marked REV TRIP is at the rear left hand side of the printed circuit board Care must be taken that none of the other four preset controls on the board are altered Adjust the control anti clockwise until the output power reaches a maximum Note that if this preset control is eve
57. tecape atest e ERE Girard irer Page 11 2 1 2 Rack Mounting aura test evestaeedes ded os este katoden senatet Page 12 2 2 EXTERNAL CONECTIONS arannnnnnnvnannnnnnnennnnnnnrnennnrnenennnnnnnenennnnenenunneennnen Page 13 2 2 1 Mains Supply Connectors arnrnrnnvrvnnenrnnvrnnnerennervnnenennerensenennerennenensenennennn Page 13 2 2 2 RF Output Antenna Connector rarnrnrnnnnannnnervnnenvenernenersenereenernenennenennnnenenn Page 14 2 2 3 RF Input Exciter Drive s CONNECHOIS cceeeee cece cette eee eats eset een tease eeeeaeees Page 14 2 2 4 Safety Interlock CONNECHOM 0 ccceeee cece ee eee eect eee neces nesta eeeeaeeeeeeeeeaeeneees Page 14 2 2 5 RF Output Monitor COnnector cccceeceeeee eee cece eee cece esee eee eee esse eeeeeeaeee eae Page 14 2 2 6 Drive A B Monitor and Control Connectors cccceeeeec eee ee eeeeee sees eaeeeeaeeeeees Page 14 2 2 7 Parallel standard or RS232 Serial Remote Control DTE Connector 0 Page 15 2 2 8 Second Transmitter Remote Control Connector 6ccceeeeee ee eeeeeeeeeeeeeeeeeteee es Page 16 2 2 9 Mains Supply Output Connectors xrarnrnnrnnrannernnnervenernenernnnereenenennenennenennenn Page 16 2 2 10 RS232 Serial Control and Monitor COM Connector 0cceeeeeeeeeeeeeeeeeeees Page 17 2 2 11 TCP IP Control and Monitor Connector T option only cceeeeeeeeeeeeeeeeee ees Page 17 2 2 12 FWD REV Output Ana
58. trol Unit A second front panel lockable toggle switch is provided on the E2024 to manually select which Exciter i e Drive is to be used or to enable the E2023 to automatically select the second Exciter should the first one fail Switching is performed by two coaxial RF relays within the E2024 These direct one of two Exciter s outputs to the internal splitter and the other to a dumping load This dumping load has to be provided externally to the E2024 whenever two Exciters are supplied and the Exciter not in use is required to remain active or be tested Three TNC connectors are provided at the rear of the unit to connect to the Exciter s and the dumping load Front panel indicators show which Drive is selected 1 1 5 E2025 Combiner Unit This single unit interfaces between the multiple E2021 Amplifier Module outputs and the antenna Phase length matched 50Q coax leads connect the E2021 outputs to the TNC connectors at the rear of this unit The combiner section within the unit is either two way S76005 four way S7601 or eight way S7602 and consists of the appropriate number of cascaded four or two way Wilkinson power combiners utilising standard handformable and flexible coaxial cable The combiner section is followed by an integral low pass filter this removing harmonics of the wanted frequency An output directional coupler is then provided with a 7 16 output socket for connection to the antenna This coupler is used to m
59. tus 34 4 Amp5 Stat Revert amplifier 5 status 35 5 Amp6 Stat Revert amplifier 6 status 36 6 Amp7 Stat Revert amplifier 7 status 37 7 Amp8 Stat Revert amplifier 8 status 38 8 Amp9 Stat Revert amplifier 9 status 39 9 Amp10 Stat Revert amplifier 10 status 3A Amp11_Stat Revert amplifier 11 status 3B Amp12 Stat Revert amplifier 12 status 3C lt Amp13_ Stat Revert amplifier 13 status 3D Amp14_Stat Revert amplifier 14 status 3E gt Amp15_ Stat Revert amplifier 15 status 3F Amp16 Stat Revert amplifier 16 status 40 Q Amp17 Stat Revert amplifier 17 status 41 A Amp18_ Stat Revert amplifier 18 status 42 C Amp19 Stat Revert amplifier 19 status 43 B Amp20 Stat Revert amplifier 20 status 44 D Amp21 Stat Revert amplifier 21 status 45 E Amp22 Stat Revert amplifier 22 status 46 F Amp23 Stat Revert amplifier 23 status 47 G Amp24 Stat Revert amplifier 24 status 48 H Amp25 Stat Revert amplifier 25 status 49 Amp26_Stat Revert amplifier 26 status 4A J Amp27_Stat Revert amplifier 27 status 4B K Amp28 Stat Revert amplifier 28 status 4C L Amp29_Stat Revert amplifier 29 status 4D M Amp30_Stat Revert amplifier 30 status 4E N Amp31_Stat Revert amplifier 31 status 4F O Amp32_Stat Revert amplifier 32 status 50 P Amp33_Stat Revert amplifier 33 status 51 Q Amp34_ Stat Revert amplifier 34 status 52 R Amp35_ Stat Revert amplifier 35 status 53 S Amp36 Stat Revert amplifier 36 status 54 T Amp37 Stat Revert amplifier 37 status 55 U Amp38 Stat Revert amplifier 38 status
60. w beneath Amps on the LCD display A short beep from the internal sounder indicates each time a valid key is pressed if a non valid key is pressed then several short beeps are sounded together An individual E2021 status can be displayed by pressing the A or v keys on the left hand side of the LCD display to select that E2021 s number The E2021s are numbered left to right bottom to top Thus they start at number 1 on the left hand of the bottom row and end at number 4 on S76005 and S7601 or 8 on 57602 at the right of the first or second row It is important to note that not all amplifiers are fitted on the 500W 576005 When an individual E2021 is being monitored in this way the output power continues to be monitored but not displayed To display the output power again just press MAIN as previously described If the forward power status via the E2025 Combiner Unit or the status of an individual E2021 Amplifier cannot be read by the E2023 over the internal RS485 buses the LCD display will show Status not present in place of the expected readings This will happen if a module is removed or if a fault exists in the monitoring circuitry and in the case of unused amplifier slots on the 500W S76005 In all modes if the Transmitter is muted by the front panel switch on the E2024 Splitter Drive Changeover Unit the amber FWD led of the E2021 being monitored will flicker If any overall System No

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