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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
Print Date 08/04/14
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
Page 1 of 34
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S79005-00MA-05
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Summary of Contents for Eddystone S79005
- Page 1 Eddystone Broadcast ---- S7900 Series S79005 500W Low Power FM Transmitter ---- Installation 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.
- Page 2 Intentional blank page Print Date 08/04/14 Page 2 of 34 S79005-00MA-05...
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Page 3: Table Of Contents
3.1.2 E2088 Power Supply Unit…..………………..…………….………………………..…….. Page 29 3.1.3 E2322 Power Supply Unit…..………………..…………….………………………..…….. Page 30 3.1.4 E2023 Transmitter Controller Unit……………………………………………….……….. Page 30 3.1.5 E2026 Drive Changeover/Output Monitor Unit…………………..……………………… Page 31 3.1.6 Supply Disconnector…………………..……………………………………………………. Page 31 Print Date 08/04/14 Page 3 of 34 S79005-00MA-05... - Page 4 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 Print Date 08/04/14...
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Page 5: Section One : Introduction
Furthermore, the lightweight, hot-pluggable Amplifier and Power Supply Modules can be easily replaced, in seconds, without having to go ‘off-air’ (again, apart from the Power Supply on the S79005- 01 and -03). Provision for dual Exciter/Drive automatic changeover and for connection to a second active/passive reserve S76XX or S79XX (i.e. -
Page 6: E2088 Or E2322 Power Supply Unit
(E2023-01/02) or rear panel (E2023-03/04) with an additional TCP/IP monitor/control port on the rear (E2023-02/04 only). In the latter cases, selection of RS232 or TCP/IP is done by internal links. Print Date 08/04/14 Page 6 of 34 S79005-00MA-05... -
Page 7: E2026 Drive Changeover/Output Monitor (And Splitter) Unit
This coupler provides output forward and reverse power samples, via coax connections, to the E2026 Drive Changeover/Output Monitor (see 1.1.4). The combiner dumping load heatsink is fitted with a temperature sensor, which is also connected to the E2026 to allow monitoring and over-temperature warnings. Print Date 08/04/14 Page 7 of 34 S79005-00MA-05... -
Page 8: Variants And Options
The main variants and their constituent modules and units are as follows :- (NOTE that the variant type is identified on the serial number plate – the initial display on the E2023 Controller will display S79005-1 or –2 which only indicates the number of power supply units fitted and not the variant) -
Page 9: Technical Specifications
Not greater than 2% with a peak deviation 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. Print Date 08/04/14 Page 9 of 34 S79005-00MA-05... - Page 10 (with 500W RF output and both mains supplies present) (with 500W RF output and only one mains supply present) Typical overall efficiency 55% at above power levels (AC in to RF out) Print Date 08/04/14 Page 10 of 34 S79005-00MA-05...
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Page 11: Section Two : Installation
Transmitter. variants) 10A ‘C’ rated 2 pole miniature circuit Fitted at mains supply distribution point to (-05 breakers (MCBs). protect supply leads and mains input to -08 components in the Transmitter. variants) Print Date 08/04/14 Page 11 of 34 S79005-00MA-05... - Page 12 For protection of internal low current dc supply leads and of mains supply leads and circuitry intended for connection to Exciter/Drives(s). 1A (T) HBC 5x20mm Fuse For protection of +48V DC supply to ancillary (-07 and equipment. –08 variants) Print Date 08/04/14 Page 12 of 34 S79005-00MA-05...
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Page 13: Rack Mounting
! CAUTION ! The S79005 (i.e. the assembly carrying the Amplifiers, Power Supplies, Controller, Drive Changeover/Output Monitor and Combiner) is heavy. Before installation in a rack, the Amplifier Modules and Power Supplies should be removed to reduce the overall weight and ease the process. -
Page 14: External Conections
The free connector should be fitted with a top entry hood. An earthing bolt is provided adjacent to the mains supply input connector to allow the Transmitter chassis to be permanently bonded to nearby safety ground directly or via rack metalwork. Print Date 08/04/14 Page 14 of 34 S79005-00MA-05... -
Page 15: Mains Supply Connector (-05, -06, -07, -08 Dual Mains Supply Variants)
The free connector should be fitted with a top entry hood. An earthing bolt is provided adjacent to the mains supply input connector to allow the Transmitter chassis to be permanently bonded to nearby safety ground directly or via rack metalwork. Print Date 08/04/14 Page 15 of 34 S79005-00MA-05... -
Page 16: Rf Output Antenna Connector
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 08/04/14 Page 16 of 34 S79005-00MA-05... -
Page 17: Parallel (Standard) Or Rs232 Serial Remote Control Dte Connector
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. Print Date 08/04/14 Page 17 of 34 S79005-00MA-05... -
Page 18: Second Transmitter Remote Control Connector
The continuous total load on output each should not exceed approximately three amps. Each output is protected by a 6.3A (T) HBC fuse, FS5 and FS6, to allow for current surges at ‘switch-on’ Print Date 08/04/14 Page 18 of 34 S79005-00MA-05... -
Page 19: Rs232 Serial Control And Monitor (Com) Connector
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 a desired fixed value, using Eddystone supplied software. -
Page 20: Setting Up Procedures
Two only or ! CAUTION ! these are high energy one only (FS5) on –07 and –08 circuits and thus care must be taken variants if replacing the fuse with power on. Print Date 08/04/14 Page 20 of 34 S79005-00MA-05... -
Page 21: Output Power Level And Frequency Adjustment
7) Reconnect both 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. Print Date 08/04/14 Page 21 of 34 S79005-00MA-05... -
Page 22: Reverse Power Trip Level Adjustment
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). Print Date 08/04/14 Page 22 of 34 S79005-00MA-05... -
Page 23: Serial Remote Control Baud Rate Setting
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 08/04/14 Page 23 of 34 S79005-00MA-05... -
Page 24: Serial Remote Control And Monitoring
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. - Page 25 Set drive mode to passive Active Set drive mode to active/unmuted Pwr_Hi Set Tx power to high Pwr_Lo Set Tx power to low Mute Set Tx to mute Unmute Set Tx to start/unmute Print Date 08/04/14 Page 25 of 34 S79005-00MA-05...
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Page 26: Reverted Status Monitor Information
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 08/04/14 Page 26 of 34 S79005-00MA-05... - Page 27 Drive C/O count 0 1 2 3 4 Dri_Data13 Tx external mute status Dri_Data14 Tx external high/low status Dri_Data15 Tx external interlock status Dri_Data16 Drive status 8 bit EOR checksum (of 2-15 inc. only Print Date 08/04/14 Page 27 of 34 S79005-00MA-05...
- Page 28 Amp Current status N H X Amp_Data14 Amp Temperature status N H X Amp_Data15 Amp Reverse Power status N H X Amp_Data16 Amp data 8 bit EOR checksum (of 2-15 inc. only) Print Date 08/04/14 Page 28 of 34 S79005-00MA-05...
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Page 29: Section Three : Operation
Green indicates that the supply output is above approximately 40V dc LED Display Red indicates that the supply output is below approximately 40V dc LED Display Green indicates that the input is above approximately 85V rms ac. Print Date 08/04/14 Page 29 of 34 S79005-00MA-05... -
Page 30: E2322 Power Supply Unit
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 08/04/14 Page 30 of 34 S79005-00MA-05... -
Page 31: E2026 Drive Changeover/Output Monitor Unit
Switch (2 pole To switch incoming mains supply on (‘ON’ or ‘I’) or off (‘OFF’ (alternatively for single supply or ‘O’). ‘O’ and ‘I’ or 4 pole for respectively) dual supply variants) Print Date 08/04/14 Page 31 of 34 S79005-00MA-05... -
Page 32: Manual Control
‘4’. It is important to note that amplifiers 2 and 3 are not present on the S79005 and thus display ’Status not present’. 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. -
Page 33: Automatic 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 08/04/14 Page 33 of 34 S79005-00MA-05... - Page 34 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. --oOo— Print Date 08/04/14 Page 34 of 34 S79005-00MA-05...
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