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EasyReach

User Manual

INTERFACING

1H90941

23

Figure 9

EasyReach Element Manager Startup Window

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Summary of Contents for EasyReach

Page 1: ...EasyReach SPREAD SPECTRUM RADIO USER MANUAL Handbook 1H90941 ISSUE 3 October 27 1999 Plessey Asia Pacific Pty Limited ACN 076 409 311 5 Talavera Road NORTH RYDE NSW 2113 AUSTRALIA...

Page 2: ......

Page 3: ...ECO E1983 30 Nov 98 RSR 02 ECO E2136 16 July 1999 MI 03 ECO E2209 27 October 1999 MI Copyright Plessey Asia Pacific Pty Limited This publication is copyright and all rights pertaining to it are reser...

Page 4: ......

Page 5: ...Version 11 DC Power Version 11 RF Frequency Variants 11 Initial Switch On 12 Antenna Alignment 13 System Configuration 14 OPERATION 15 Normal Startup Procedure 15 System Control and Monitoring 15 TRO...

Page 6: ...6 Bench Testing Arrangement E1 Version 19 Figure 7 Bench Testing Arrangement T1 Version 19 Figure 8 Location of internal loopbacks 20 Figure 9 EasyReach Element Manager Startup Window 23 Figure 10 AL...

Page 7: ...RED ON WITH ANY OF ITS COVERS REMOVED CAUTION Do not connect the antenna ports of two units directly together Damage of both units WILL result OPERATING WITHIN FCC GUIDLINES The U S Federal Communicat...

Page 8: ......

Page 9: ...roduct range The EasyReach product range encompasses the following orderable variants E1 2 048 Mbit s full duplex transport T1 1 544 Mbit s full duplex transport DC Power supply AC Power supply Featur...

Page 10: ...pply version of EasyReach can operate from supply voltages of 20 to 60 volts or 20 to 60 volts AC supply version The AC supply version of EasyReach can operate from nominal mains voltages between 110...

Page 11: ...nager software package on 3 5 inch floppy disc PC serial interface cable Two antennas 19 dBi or 22 dBi supplied optionally Two antenna feeder cables with N type terminations supplied optionally Option...

Page 12: ...ure 1 The use of a PC is not required unless configuration change or monitoring facilities are required Figure 1 EasyReach Equipment Setup E1 Version 110 240 VAC or 20 to 60 VDC DATA IN DATA OUT TERMI...

Page 13: ...ONFIGURATION 1H90941 5 Figure 2 EasyReach Equipment Setup T1 Version 110 240 VAC or 20 to 60 VDC DATA TERMINAL MANAGEMENT ALARM ANTENNA TERMINAL POWER T1 DATA ANTENNA 5 6 VOLTMETER WIRE PAIR ANTENNA C...

Page 14: ...volts DC isolated 2 ampere slow blow fuse DATA IN connector E1 data in from user equipment DATA OUT connector E1 data out to user equipment DATA connector T1 data in from user equipment and out to us...

Page 15: ...ont panel status indicators are as follows LEGEND If GREEN If RED POWER Power is on FAIL The unit has passed self test Power or system fail DATA Data acquired Loss of data or line code violations dete...

Page 16: ...fications The unit comes with mounting feet attached ready for desktop mounting The unit may be either front or rear mounted in a 19 inch rack The universal mounting brackets can be screwed onto eithe...

Page 17: ...rackets on diagonally opposite sides of the unit as shown in Figure 5 and leave the feet attached to buffer the unit from the wall surface Figure 5 Wall Mounting of EasyReach Unit DATA TERMINAL RF SIG...

Page 18: ...urately as possible to be pointing to within 6 degrees of each other in the vertical and horizontal planes within the antenna s 3 dB beamwidth Failure to do this will reduce the received signal streng...

Page 19: ...and the 0V rail will be connected to and also to the chassis ground terminal RF Frequency Variants EasyReach units come in two different frequency variants and with complementary transmit receive freq...

Page 20: ...cessary to interface a PC to the EasyReach unit unless the user requires either to monitor the system operation or to re configure the control and monitoring parameters see System Control and Monitori...

Page 21: ...inting to within 6 degrees of the other site in both the vertical and horizontal planes within the 3 dB antenna beamwidth Run a pair of wires from the unit to the antenna Connect the wires to pins 5 a...

Page 22: ...ional Parameters PARAMETER DEFAULT SETTING COM port selection COM 1 Loopback mode for system checking Disabled Transmitter power at antenna port 24 dBm Setting of the digital signal processor DSP spre...

Page 23: ...nitoring parameters see System Control and Monitoring below and Control and Configuration Using EasyReach Element Manager on page 22 Normal Startup Procedure Switch on the power to the equipment at bo...

Page 24: ...page 18 gives a summary of how various error conditions can affect the status indicators If the performance is such that the antenna systems are suspect the two EasyReach terminal units of a link can...

Page 25: ...ult with the unit Return for repair DATA LED is Red The DATA LED is red when The EasyReach unit cannot detect data on the DATA port The EasyReach unit detects bipolar code violations on the DATA port...

Page 26: ...configured incorrectly Check that configurations are the same at both ends of the link and restart both units Error Table A summary of the various error conditions that may affect the condition of the...

Page 27: ...her Damage of both units will result Figure 6 Bench Testing Arrangement E1 Version 110 240 VAC or 20 to 60 VDC DATA IN DATA OUT TERMINAL MANAGEMENT ALARM ANTENNA TERMINAL POWER 110 240 VAC or 20 to 60...

Page 28: ...e E1 T1 port of the other unit Switch on the power to the equipment at both ends of the link The four front panel LEDs should be green The E1 T1 data communications analyser should indicate no errors...

Page 29: ...1 Table 4 Testing procedure using internal loopbacks Loopback Description If good If bad 1 Local E1 T1 Go to 2 Check near end Connection 2 Local Modem Go to 3 Check spreading codes 3 Far End E1 T1 Che...

Page 30: ...oftware running under Windows 95 minimum on a PC The Element Manager allows access to the following parameters and status information COM port selection Current alarm summary Loopback mode for system...

Page 31: ...EasyReach User Manual INTERFACING 1H90941 23 Figure 9 EasyReach Element Manager Startup Window...

Page 32: ...smit 3 Receive 4 Not connected 5 GND 6 Not connected 7 CTS 8 RTS 9 Not connected If the RJ45 TERMINAL port on the rear of the EasyReach unit is to be connected to a PC 9 way D type port the interface...

Page 33: ...mally open the other with contacts normally closed When the unit is powered and operating correctly the relays are held in the ON state When an alarm occurs or if power to the unit fails the relays sw...

Page 34: ...sitive 2 Negative 3 Ground 4 Ground Figure 11 DC Power Connector Pin Configuration Rear View 4 3 2 1 Table 9 T1 Data Connector RJ48C Pinout Pin Connection 1 Receive ring 2 Receive tip 3 Not Used 4 Tra...

Page 35: ...e link should be selected to use a different band from the other link s Space Diversity Interference may be minimised by locating antennas from different links as far as possible from each other In th...

Page 36: ...B90949 100 2B90949 x Feed cable Low loss Standard flexibility Where x is a 3 digit number indicating length in 10th of a metre For example the order code for a 10 metre length would be 1B90949 100 3B9...

Page 37: ...ts s Data interface ITU T G 703 75 ohms BNC Jitter specification ITU T G 823 Residual BER Better than 1E 10 Alarm indicators Power system and data fail External alarm Relay contact normally open Syste...

Page 38: ...evel 63 dBm 50 ohms Overload point 25 dBm Sensitivity typical at antenna port 88 dBm at BER 10E 6 Power Supply DC source 20 to 60 volts Optional AC input 110 to 240 volts 50 to 60 Hertz Auto ranging M...

Page 39: ...around the top of the mast Potential difference will develop between different conducting paths as the surge is transmitted towards ground equipment due to different transient propagation characterist...

Page 40: ...a low cost solution and together with grounded antenna design as described above is normally sufficient to protect the antenna system from lightning Lightning rods providing protection cones can also...

Page 41: ...eglected the user may experience sub standard performance or interference problems The recommended earthing points are depicted in Figure 13 Figure 13 Standard Earthing Practices at a Communication Si...

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