Eddystone S79005 Installation And Operation Manual Download

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Print Date 08/04/14 Page 1 of 34 S79005-00MA-05

Eddystone Broadcast

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S7900 Series

S79005 500W

Low Power

FM Transmitter

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Installation

and

Operation

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Issue 5

S79005-00MA-05

April 2014

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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

Summary of Contents for S79005

Page 1: ...ries S79005 500W Low Power FM Transmitter Installation and Operation Issue 5 S79005 00MA 05 April 2014 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 ...

Page 2: ...Print Date 08 04 14 Page 2 of 34 S79005 00MA 05 Intentional blank page ...

Page 3: ...ectors Page 16 2 2 8 Parallel standard or RS232 Serial Remote Control DTE Connector Page 17 2 2 9 Second Transmitter Remote Control Connector Page 18 2 2 10 Mains Supply Output Connectors Page 18 2 2 11 RS232 Serial Control and Monitor COM Connector Page 19 2 2 12 TCP IP Control and Monitor Connector T option only Page 19 2 2 13 FWD REV Output Analogue Monitor Connectors Page 19 2 2 14 48V DC Outp...

Page 4: ... MANUAL MONITORING Page 32 3 4 AUTOMATIC CONTROL Page 33 3 4 1 Exciter Drive Control and Monitoring Page 33 3 4 2 Muting and Reduced Power Operation Page 33 Bound at Rear Front and Rear Panel Views S79005 00GA Block Diagram S79005 00BK Interconnections Circuit Diagram S79005 00CT ...

Page 5: ...ion to direct all of one Transmitter s power to the antenna The key feature of The S7900 series is its ability to remain on air The use of multiple Amplifier and apart from the S79005 01 and 03 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...

Page 6: ...er Modules the faulty Power Supply module can be removed or replaced within seconds whilst the Transmitter is operating at full power Red green fault displays relatively low weight and small size again feature 48Vdc outputs for each Amplifier and for all the low power single units are provided via fuses at the rear of the Transmitter The Power Supply monitor connectors go to one of two independent...

Page 7: ...smitter and the other for the Amplifier Module on the right hand side 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 cir...

Page 8: ...le E2023 01 03 or E2023 02 04 T Option Single E2026 05 Single E2029 01 S79005 04 Dual PSUs Single Mains Input 2 off E2021 XX 2 off E2322 01 Single E2023 01 03 or E2023 02 04 T Option Single E2026 05 Single E2029 01 S79005 05 Dual PSUs Dual Mains Input 2 off E2021 XX 2 off E2088 01 Single E2023 01 03 or E2023 02 04 T Option Single E2026 05 Single E2029 01 S79005 06 Dual PSUs Dual mains Input 2 off ...

Page 9: ...tput Power Variation Not more than 1dB under all specified operating conditions Output Power Shutdown Output power is automatically reduced or shutdown to ensure that any load with return loss 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 n...

Page 10: ... l Power Supply 01 02 03 and 04 single mains supply variants Single phase input 90 to 260V AC 47 63Hz Apparent power factor 98 Efficiency 88 Power Supply units only Supply current at 230V AC typically 4A with 500W RF output Supply current at 115V AC typically 8A with 500W RF output Typical overall efficiency 55 at above power levels AC in to RF out Power Supply 05 06 07 and 08 dual mains supply va...

Page 11: ...ly into the Transmitter with its locking lever engaged do not try to force these modules home if they appear difficult to insert fully check the connectors at the rear of the module Note that the two types are not interchangeable 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 requireme...

Page 12: ...on to additional control monitor input links Length as req d Multi core screened cable number of cores as required Control monitor leads Length as req d Heavy gauge grounding wire strap For safety earth lead 1 2 IEC 6A free plug to free socket mains leads 1 metre 3 core each 0 75mm 2 EPR insulated HOFR sheathed for high temperatures For fused and switched mains supply connections to Exciter Drive ...

Page 13: ... to release the mechanical securing locks first The Fan Assemblies may also be opened unplugged and then removed from the rear of the Transmitter The 19 inch rack should be of standard 600mm depth and at least 7U height 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 ...

Page 14: ... provided at the supply distribution board 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 OF...

Page 15: ...pply 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 to prevent inad...

Page 16: ...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 swi...

Page 17: ...referred 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 8 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 con...

Page 18: ...in 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 12kΩ and must be fed from a voltage free source of less than 1kΩ 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 E2026 Auto M...

Page 19: ...tailed 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 address...

Page 20: ... fuseholder is accessible on the front printed circuit board right hand side CAUTION Ensure that the front panel Supply Disconnector is switched to OFF 16A T HBC 5x32mm x1 in Fuses One per E2021 For protection of internal dc supply leads to and high current circuitry within E2021 Amplifier modules If fuse blows all front panel displays on just the affected E2021 go out and its power level falls to...

Page 21: ...if replacing the fuse with power on 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 sett...

Page 22: ...w 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 17 If the reading is not within this range it may be adjusted by a preset control inside the E2026 Drive Changeover Outpu...

Page 23: ...s preset control is ever advanced too far clockwise this may cause a decrease in output power with less than 13W reverse power i e with a relatively good antenna system and with the E2026 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 seco...

Page 24: ...B 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 mu...

Page 25: ... 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 I 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 R...

Page 26: ...ect Display Sign 2B 2D Direct Display Decimal point 2E Direct Display Blank 00 NUL Direct Display Less than 3C 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 immedi...

Page 27: ...Tx_Data14 Tx power auto start mute status M S Tx_Data15 Tx power auto high lo setting status H L 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 T Y Dri_Data3 Drive on A B statu...

Page 28: ...p_Data15 Output Tx Type A 500W 1 Psu B 500W 2 Psu C 1kW D 2kW E 3kW F 4kW G 5kW Comp H 5kW I 8kW J 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 ASCII Amp_Data1 Amp number 1 40 third byte echo of ASCII 1 9 A X Amp_Data2 Amp Forward Power Level MSB W Amp_Data3 Amp Fo...

Page 29: ...cates forward power fail module output power 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 greate...

Page 30: ...onditions MAIN Membrane Switch To directly select the main LCD screen showing the Transmitter s output forward power reverse power state and combiner heatsink temperature MODE Membrane Switch To select other Controller functions modes such as Amplifier module monitoring Membrane Switch To step upwards through choices offered in the mode selected Membrane Switch To step downwards through choices of...

Page 31: ...ay and Adjustable Pot 20T Green LED indicates low power output setting selected and adjacent pot can be used to directly set output power level The HIGH POWER LED will be off 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 i e 16dB...

Page 32: ...e horizontal row 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 or keys on the left hand side of the LCD display to select that E2021 s number The E2021s are numbered left to right Thus they start ...

Page 33: ...ashing 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 select...

Page 34: ...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 I 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 E2026 AU...

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