Receiver Multicoupler
Contents
1. receiver Multicoupler I E E tad i ae Pra aa A F 7 kh a 2 he ri rs ihe 5 p 35 Fae S ae git bt l 7 Feito te a 34 1 i T fry 7 T 7 i a 1 rf T i Introducing RFH s New Expandable Receiver Multicoupler RxMUX These Receiver Multicouplers may be used to improve the signal to noise performance of a two way radio system They are compatible with both analogue and digital technologies and also provide the ability to distribute received signals from a single antenna system to multiple base station receivers The Challenge The two way radio marketplace is a changing landscape The introduction of digital technologies shared networks and ever increasing expectations for reliability have raised the bar in receiver combiner requirements The Solution RFI is pleased to announce the introduction of a new range of high performance Receiver Multicoupler products targeted at satisfying these emerging requirements HESE NEW PRODUCTS FEATURE Receiver Multicouplers 12 VDC Operation Manual or programmable PERFORMANCE amp FUNCTIONALITY Full band operation gain setting 1382 174 MHz 380 520 MHz Integral status monitoring and 698 960MHz a Local or remote alarm outputs a In built amplifier redundancy a L2. 5 Expansion Output N f connector to connect to the optional 8 way Expansion Unit 6 RF Output One of eight N f connections to the receivers 7 RF Input N f connection to the receiver antenna via a receiver preselector 8 Power Connector 2 way Phoenix connector to connect to the DC power supply 9 Alarm Connector 3 way Phoenix connector to connect to external alarm devices 10 USB Control LED Yellow LED which lights when the gain is controlled by the switches on the rear panel 11 Gain Control LED Yellow LED which lights when the gain is controlled by the USB programmed value 12 Earth Screw Termination for connection to an equipment earth PROGRAMMING A USB serial Communications port is provided on the Receiver Multicoupler This Ji port can be used for programming status aT and alarm interrogation and firmware 2 oV AN AMP 2 The communications protocol uses a simple text only terminal emulation format compatible with most common types of computers USB drivers are provided on a CD with each Receiver Multicoupler unit Programmable parameters include Site Name Gain Setting Manual or Programmable Gain Control When connected to a landline or wireless modem this USB connection can be used to facilitate remote programming and or monitoring of the Receiver Multicoupler The new Receiver Multicoupler models feature integral power supply and amplifier stage status monitoring and alarm reporting Paramete
3. A fully floating 36 VDC 60 VDC power supply option is also available This option is also fitted internally within the Receiver Multicoupler and must be ordered with the Receiver Multicoupler unit It is not designed to be field retro fitted SHIPPING These Receiver Multicouplers are supplied complete with a Quick Start Guide a 50 Ohm termination for the Expansion Port and a CD containing USB drivers and a soft copy of the Quick Start Guide and User Manual SYDNEY Head Office MELBOURNE ADELAIDE INTERNATIONAL My PO Box 4762 Ph 61 39751 7500 Ph F618 82451900 PO Box 340 n North Rocks NSW 2151 Fax F61 39761 6288 Fax 61 8 8346 2244 Banyo QLD 4014 Ww Ph 61 28838 0900 Australia Fax 61 29630 0844 BRISBANE PERTH Ph 61 7 3621 9400 Ph 61 9311 0600 Fax Ol 0202 9000 000 6 Fax 61 8 9311 0688 export rfi com au 5505 3202 0 R rfi com au 2010 R F Industries Pty Ltd Data subject to change without notice AN 40421 1
4. application This capability allows the deployment of an optional TTA with a Receiver Multicoupler to provide the benefits of improved system uplink performance into a network FEEDER TTA This capability provides a future TTA deployment capability to a receiver combiner SS system utilising this Receiver Multicoupler product range RECEIVER MULTICOUPLER LOW NOISE AMPLIFIER A quadrature Low Noise Amplifier LNA design is utilised in the Receiver Multicoupler to provide optimised performance The use of high 3OIP devices and design practices within the LNA ensures that high linearity and low intermodulation susceptibility is provided across a broad dynamic range of input signal levels This capability is particularly important for in building and in tunnel systems that may experience high input levels when radio handsets can venture into close proximity of antennas or radiating cables For digital technologies this broad dynamic range capability can assist in ensuring maximum performance is provided across the entire range of RF input levels from the weakest signal from a distant portable to a strong signal from a nearby mobile This capability can allow the full potential of low bit error rate BER performance in the network s uplink or talk in sensitivity to be realised An additional benefit of the quadrature LNA design is the inherent redundancy of the parallel amplifier stages An Auto Gain feature automatically restores the se
5. acity is increased above that of the 9 16 channel configuration the gain of the Receiver Multicoupler should be adjusted to com pensate for the additional losses introduced in this configuration restoring the receiver combiner system s net gain to the required value Unused RF Outputs can be left unterminated if desired with only a minimal performance degradation For RF output capacities above sixty four 64 channels the Expansion Port can be used to double the possible capacity of the Receiver Multicoupler system Up to 128 RF Outputs can be provided using this configuration Capacity 1 to 64 Channels 2 2 Beas O 5 O RF INPUT o _ lL lL ll 1 I I 50 OHM TERMINATION Capacity 1 to 128 Channels RxMUX EXP PORT RF OUTPUTS RF INPUT 6 O O O O O O YQ Q EG RF INPUT Expansion Multicoupler s 5 Introducing RFs New Expandable Receiver Multicoupler RXxMUX The Receiver Multicoupler rear panel contains the RF Input eight RF Outputs and Expansion Port connectors It also contains four LED indicators Manual Gain Switches DC Power Alarm Output and USB connectors The Receiver Multicoupler is designed to operate from a typical 12 VDC source Other supply voltage options are available to suit 24 VDC 48 VDC and other DC supply requirements Many installations of these Receiver Multicouplers may conveniently use either the Base Station s existi
6. mpering of the system if desired The ease of changing the Receiver Multicoupler gain can also be used to compensate for any additional losses introduced into the receiver combiner system through the future addition of Expansion Multicouplers maintaining consistent system performance throughout future expansion phases Receiver Multicouplers EXPANDABABILITY amp FLEXIBILITY Ae 0 in tne Tiela Catering tor output A multi stage output divider is provided in the Receiver Multicoupler Eight 8 RF Outputs and One 1 Expansion Port are provided in the Receiver Multicoupler all utilising N female connectors The Expansion Port can be used to expand the initial eight 8 RF outputs up to Capacity 1 to 8 channels RxMUX EXP PORT RF OUTPUTS o lL lL lll ll eee 50 OHM TERMINATION sixteen 16 RF outputs all of equal net gain through the use of an Expansion Multicoupler If the Expansion Port is not used it should be fitted with a 50 ohm termination Capacity 1 to 16 channels RF INPUT EXP PORT RF OUTPUTS OQ O O O O O RF INPUT For RF output capacities above six teen 16 channels the Expansion Port should be terminated and multiple Expansion Multicouplers connected to the Receiver Multicoupler RF Outputs Up to sixty four 64 RF Outputs can be provided through this process As the output cap
7. ng power supply or the site s main UPS with an optional wide ranging AC Power supply mains operation also available if required amp Receiver Multicouplers oe RECEIVER MULTICOUPLER ian ANICI DADI TY LUU TIM U MA DI LI The Receiver Multicoupler front panel displays four 4 LED indicators These front panel indicators are as follows 1 Switch Control LED Yellow LED which lights when the gain is controlled by the switches on the rear panel 2 USB Control LED Yellow LED which lights when the gain is controlled by the USB programmed value 3 Fault LED Red LED lights when a fault is detected 4 Power LED Green LED which lights when power is connected RFA R PANEL The Receiver Multicoupler rear panel also displays four 4 LED indicators It also contains the RF Input Expansion Port and 8 RF Output Ports N connectors DC Power Alarm Relay and USB connectors are conveniently located and the gain setting BCD rotary switches are also presented on the rear panel 3 p EXP PORT RF OUTPUTS RF INPUT 6 j em EARTH EXP PORT 8 9 10 11 12 These rear panel indicators and connectors are as follows 1 Power LED Green LED which lights when power is connected 2 Fault LED Red LED which lights when a fault is detected 3 USB Connector Type B connector to connect to a PC 4 Gain Switches Rotary switches to manually set the gain
8. ocal or remote programming Low noise amplifiers LNA Auto gain adjustment on Ease of expandability partial quadrature amplifier failure RFl s new Receiver Multicouplers have been designed to incorporate high performance RF specifications and reliability of operation This high performance level is coupled with a user friendly configuration capability and comprehensive integral monitoring and alarm status capability LEDS GAIN CONTROLLER Is ALARM E RF OUTPUTS RFI INPUT TTA Interface eee ATTENUATION EXPANSION PORT Dc P POWER SUPPLY Product Description Receiver Multicouplers should always be P linked to an appropriate Receiver Preselector that passes the desired RE INPUT receive frequencies and rejects transmitter or other out of band signals The RF Input of the Receiver Multicoupler utilises an N female connector Internal protection is fitted to this input to assist with the provision of surge protection for the amplifier stages This internal surge protection supplements the correct implementation of external surge EXP PORT RF OUTPUTS RF INPUT protection and grounding practices that Se 6095 5 RF INPUT should be fitted to all receiver antenna and feeder installations 50 OHM TERMINATION TTA INTERFACE A Tower Top Amplifier TTA Interface can be incorporated into a Receiver Multicoupler
9. r status can be interrogated via the unit s USB port Alarm conditions are presented by LED indicators and also by dry voltage relay contacts with both normally open N O and normally closed N C connec tions available for use The alarm conditions that are monitored and reported are Internal 12 VDC supply within tolerance a Internal 9 VDC supply within tolerance Amplifier 1 status a Amplifier 2 status EXPANSION MULTICOUPLER The Expansion Multicoupler is supplied separately and can be purchased to provide easy field expansion of channel capacity as required in the future The Expansion Multicoupler is a broadband module and is compati ble with Receiver Multicouplers operating on any frequency from 66 MHz to 960 MHz It is supplied on a standard 1RU 19 rack mount panel POWER SUPPLY OPTIONS Mains Power Supply If the Receiver Multicoupler is not to be operated from the network DC voltage or site UPS power supply a 100 240 VAC universal mains power supply unit is available to power the Receiver Multicoupler This unit is Supplied pre terminated for direct connection to the Receiver Preselector s 12 VDC Input connector 18 VDC 36 VDC Power Supply A fully floating 18 VDC 36 VDC power supply option is available This option is fitted internally within the Receiver Multicoupler and must be ordered with the Receiver Multicoupler unit It is not designed to be field retro fitted 36 VDC 60 VDC Power Supply
10. t gain of the Receiver Multicoupler in the event of failure impacting one am olifier stage within the quadrature amplifier allowing continued operation and ensuring the network remains in operation until the fault is rectified Integral amplifier stage status monitoring will provide an Alarm LED indication and relay con tact output to report the alarm state This level of redundancy provides an inherent level of fault tolerance and network resiliency that can be of particular benefit in operations critical applications Introducing RFs New Expandable Receiver Multicoupler RxMUX These Receiver Multicouplers may be used to improve the signal to noise performance of a two way radio system They are compatible with both analogue and digital technologies and also provide the ability to distribute received signals from a single antenna system to multiple base station receivers A digital step attenuator is incorporated within the Receiver Multicoupler design to provide the capability to easily configure the gain of the network s receiver combiner system This attenuator setting can be configured by manually setting the BCD rotary switches located on the rear of the unit or via the USB programming interface The programming interface can be used to configure whether the BCD or USB gain value is used in the attenuator and the ability to set this preference can allow the unit to be configured without a PC or alternatively to prevent on site ta
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