Elber~usermanuals~stl systems - t sl-r sl-(1u) [en]

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Microwave Link DSL
Installation and Operation Manual
Transmitter T_SL/10
Receiver R_SL/10
TRANSMITTER T_SL / RECEIVER R_SL
TABLE OF CONTENTS
1 – Overview…………………………………………..…………………………………….…………………. 1
2 – Technical Specifications
2.1 Transmitter….…………………………………………………………………………………………… 1
2.2 Receiver………..…………………………………………………………………………………...…… 1
2.3General…………...……………………………………………………………………………………… 2
2.4 Mechanical…………….……………………………………………………………………………...…. 2
3 – Installation Procedure………..…………………………………………………………….…………… 2
4 – Theory of Operation.…………………………………………………………………..………….….… 3
4.1 Transmitter ………………………….....………………..……………………………………………… 3
4.1.1 Block diagram……………………………………..……………………………………………… 3
4.1.2 1st Up converter……………………………..…………………………………………………… 4
4.1.3 2nd Upconverter…………………...…………………………………………………………… 4
4.1.4 Power amplifier…...……………………………………………………………………………… 4
4.1.5 1st Oscillator..………………..…...………………………………………………….………… 4
4.1.6 2nd Oscillator.. ………….……………………….……………………………………………… 4
4.2 Receiver…………………………………………………………….....………………………………… 5
4.2.1 Block diagram..……………………..….………………………………………………………… 5
4.2.2 1st Down converter…………………………………….………………………………………… 6
4.2.3 2nd Down converter / IF amplifier/AGC……………...……..………………………………… 6
4.2.41st Oscillator.……………………....…………………………………………………….……… 6
4.2.5 2nd Oscillator. ……………………………….…………………………………..……………… 6
4.3 Controller.………………………………………………………………………..……………………… 6
4.4 Supply……..……………………………………………………..……………………………………… 7
4.5 Manual user interface (keyboard + display………………..………………………………………… 8
4.5.1 Configuration menu………..……………………………………………………………………. 9
4.5.2 Status menu.………..……………….……………………….………….……………………… 10
5 - External description…………………………………………………….………………………………… 11
5.1 Transmitter….…………………………………………………………………………………………… 11
5.1.1 Front panel ……………………………………………………………………………………….. 11
5.1.1.1 Controls and indicators …………………………...…………………………………… 11
5.1.1.2 Connectors …………..…………………….…………………………………………… 11
5.1.2 Back panel …..…………………………………………………………………………………… 12
5.1.2.1 Connectors ………………..……….…………………………………………………… 12
5.2Receiver……………………………………...………………………………………………………… 13
5.2.1 Front panel….…………………….…………………………………………………………… 13
5.2.1.1 Controls and indicators..……………………………………………………………….. 13
5.2.1.2 Connectors …………..……..…………………………………………………...……… 13
5.2.2 Back pane………..…………………………………………………………………..…………… 14
5.2.2.1 Connectors………………….…………………………………………..………….…… 14
6 Setting-up…………………………………………………………………………………………………… 15TRANSMITTER T_SL / RECEIVER R_SL
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1 – Overview
The radio link DSL is composed by a transmitter and receiver in standard 19" 1 unit racks. The link has been
developed for the transport of digital signals (with modulation schemes up to 256QAM, 28 MHz band),
nevertheless it can be used with excellent results for the transport of analogue modulation signals thanks to
theperfect hardware equalization of the response of the filters inserted in the transmitter and in the receiver.
The DSL radio link is also frequency agile: the band coverage can reach up to 500MHz and among the
possible bands are included the more commonly employed ones in the 2GHz-15GHz range. The adopted
configuration, both in reception and in transmission, the double frequency conversion and thesynthesized
oscillators have a particularly low phase noise.
The function and monitoring of the operating parameters can be performed using the 6-key keypad and the
LCD display on the front panel, and also through an RS232 or an RS485 interface.
2 – Technical Specifications
2.1- Transmitter T_SL/10
CONFIGURATION Double Frequency Conversion
CENTRE FREQUENCY T_SL/10 10 to 12.5 GHz
FREQUENCYSPAN 500 MHz
FREQUENCY RESOLUTION 100 kHz
CHANNEL BANDWIDTH 28 MHZ
SATURATED RF OUTPUT POWER T_SL/10 +30 dBm ±1 dB
T_SL/10 +36 dBm ±1 dB
RF OUTPUT CONNECTOR T_SL/10 IEC UBR 120
RF OUTPUT RETURN LOSS > 26 dB
SPURIOUS OUTPUT CONTENT < -65 dBc
FREQUENCY STABILITY ± 20 ppm...