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Summary of Contents for Plessey 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 3 ECO E2136 16 July 1999 ECO E2209 27 October 1999 © Copyright Plessey Asia Pacific Pty Limited. This publication is copyright and all rights pertaining to it are reserved. No part may be reproduced by any process without written permission.
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Page 5: Table Of Contents
DATA LED is Red ........................ 17 RF SIGNAL LED is Red ....................... 17 Error Table........................... 18 Bench Testing........................19 INTERFACING THE EASYREACH Control and Configuration Using EasyReach Element Manager ........22 Interface Cable Configurations ..................24 ALARM PORT FUNCTIONS CO-LOCATION OF EASYREACH LINKS ACCESSORIES... - Page 6 EasyReach Equipment Setup (E1 Version)..............4 Figure 2 EasyReach Equipment Setup (T1 Version)..............5 Figure 3 Front Mounting of EasyReach Unit ................8 Figure 4 Rear Mounting of EasyReach Unit ................8 Figure 5 Wall Mounting of EasyReach Unit................. 9 Figure 6 Bench Testing Arrangement (E1 Version)..............
- Page 7 EasyReach User Manual WARNINGS AND CAUTIONS RF RADIATION WARNING RF ENERGY AT MICROWAVE FREQUENCIES IS PRESENT WITH THIS EQUIPMENT. PERSONNEL SHOULD NOT BE EXPOSED TO HIGH RF ENERGIES, AND SHOULD NOT BE IN FRONT OF THE ANTENNA WHEN THE EQUIPMENT IS SWITCHED ON.
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Page 9: Function
FUNCTION FUNCTION General Description The Plessey EasyReach is a radio link platform that provides two-way full duplex transport of 2Mbit/s (European) or 1.544Mbit/s (USA) of data between two points. The design provides a reliable and cost effective solution for connecting disparate communications facilities. - Page 10 INSTALLATION EasyReach User Manual The DC supply 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 and 240 volts AC and frequency between 50 and 60 Hertz.
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Page 11: System Configuration
SYSTEM CONFIGURATION SYSTEM CONFIGURATION Equipment The following equipment is supplied as a Plessey EasyReach radio system: • Two EasyReach units each supplied with a mains power cable (for units to be powered from AC) or a DC supply mating connector (for units to be powered from DC). -
Page 12: Configuration
The equipment is set up on installation as shown in Figure 1. The use of a PC is not required unless configuration change or monitoring facilities are required. Figure 1 EasyReach Equipment Setup (E1 Version) VOLTMETER ANTENNA E1 DATA POWER... -
Page 13: Figure 2 Easyreach Equipment Setup (T1 Version)
EasyReach User Manual SYSTEM CONFIGURATION Figure 2 EasyReach Equipment Setup (T1 Version) VOLTMETER ANTENNA T1 DATA POWER WIRE ANTENNA PAIR CABLE DATA 110/240 TERMINAL MANAGEMENT ALARM ANTENNA 20 to 60 TERMINAL PC (OPTIONAL) SERIAL CABLE 1H90941... -
Page 14: Connections
SYSTEM CONFIGURATION EasyReach User Manual Connections LOCATION TYPE FUNCTION Front panel Configuration port for PC (is connected in TERMINAL port parallel with the TERMINAL port on the rear panel – either one can be used as the configuration port). Rear panel... -
Page 15: Front Panel Indicators
EasyReach User Manual SYSTEM CONFIGURATION Front Panel Indicators The names and functions of the front panel status indicators are as follows: LEGEND If GREEN If RED Power is on POWER The unit has passed self- Power or system fail FAIL... -
Page 16: Installation And Commissioning
Mounting the EasyReach Unit The EasyReach unit can operate in an environment in which the temperature range does not exceed the limits specified in the environmental specifications. The unit comes with mounting feet attached, ready for desktop mounting. -
Page 17: Figure 5 Wall Mounting Of Easyreach Unit
Figure 5 , and leave the feet attached to buffer the unit from the wall surface. Figure 5 Wall Mounting of EasyReach Unit Mounting brackets located at diagonally opposite sides of the unit... -
Page 18: Antenna Mounting
INSTALLATION AND COMMISSIONING EasyReach User Manual Antenna Mounting The antenna is best suited to be mounted on a pole of diameter between 50 and 100 mm. The pole must be rigidly mounted to prevent any swaying or vibration of the antenna. -
Page 19: Supply Connection
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 frequencies for each variant. The frequencies of the variants are listed in Table 1. -
Page 20: Initial Switch-On
Ensure that the equipment is set up according to Figure 1 (see page 4). It is not necessary 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 –... -
Page 21: Antenna Alignment
EasyReach User Manual INSTALLATION AND COMMISSIONING Antenna Alignment RF RADIATION WARNING RF ENERGY AT MICROWAVE FREQUENCIES IS PRESENT WITH THIS EQUIPMENT. PERSONNEL SHOULD NOT BE EXPOSED TO HIGH RF ENERGIES, AND SHOULD NOT TO BE IN FRONT OF THE ANTENNA WHEN THE EQUIPMENT IS SWITCHED ON. -
Page 22: System Configuration
0 to 110 Feet If the application requires any variation to any of these parameters, refer to “Control and Configuration Using EasyReach Element Manager” on page 22 for detail on how to do this, or to examine what the current parameter settings are. -
Page 23: Operation
It is not necessary 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 –... -
Page 24: Troubleshooting
These procedures are detailed in “Control and Configuration Using EasyReach Element Manager” on page 22. In the event of a faulty EasyReach, refer to qualified service personnel or return the EasyReach for service. 1H90941... -
Page 25: Status Indicators
RF SIGNAL LED is Red The RF SIGNAL is red when the EasyReach unit is not receiving an RF signal of sufficient strength from the other end of the link to acquire reliable data. Firstly, check that the unit at the other end of the link is switched on. -
Page 26: Error Table
If the RF SIGNAL indicator at the other end of the link is green, then the problem may be that one of the EasyReach units has been configured incorrectly. Check that configurations are the same at both ends of the link, and restart both units:... -
Page 27: Bench Testing
Bench Testing To aid system commissioning or to check the integrity of the equipment, the Plessey EasyReach link may be bench tested by bypassing the antennas, as shown in Figure 6. Units may only be connected with an attenuator exceeding 50 dB in the path between antenna ports. -
Page 28: Figure 8 Location Of Internal Loopbacks
20 to 60 20 to 60 Internal Data Path Internal Data Path TERMINAL TERMINAL Follow the testing flow shown in Table 1 using the EasyReach Element Manager software to place the radio into loopback at the locations shown in Figure 8. 1H90941... -
Page 29: Table 4 Testing Procedure Using Internal Loopbacks
EasyReach User Manual TROUBLESHOOTING Table 4 Testing procedure using internal loopbacks. Loopback Description If good If bad Local E1 / T1 Go to 2 Check near end Connection. Local Modem Go to 3 Check spreading codes. Far End E1 / T1 Check E1 / T1 far end Check RF connection. -
Page 30: Interfacing The Easyreach
The Element Manager contains a help menu that provides information on all of its functions. To set up the PC to run the Element Manager, insert the EasyReach diskette into the a: drive, select Run from the Windows 95 / 98 start menu and type: Setup.exe... -
Page 31: Figure 9 Easyreach Element Manager Startup Window
EasyReach User Manual INTERFACING Figure 9 EasyReach Element Manager Startup Window 1H90941... -
Page 32: Interface Cable Configurations
Not connected Not connected 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 cable pinout is required to be as below. Table 6... -
Page 33: Alarm Port Functions
EasyReach User Manual ALARM PORT FUNCTIONS ALARM PORT FUNCTIONS The EasyReach provides information on received signal strength and system status from the ALARM port connector at the rear of the unit. The ALARM port provides two functions: • Received signal strength: The voltage between pins 5 and 6 give a qualitative indication of the received signal strength. -
Page 34: Figure 11 Dc Power Connector Pin Configuration (Rear View)
ALARM PORT FUNCTIONS EasyReach User Manual Table 8 DC Power Connector Pinout Connection Positive (+) Negative (-) Ground Ground Figure 11 DC Power Connector Pin Configuration (Rear View) Table 9 T1 Data Connector RJ48C Pinout Connection Receive (ring) Receive (tip) -
Page 35: Co-Location Of Easyreach Links
CO-LOCATION OF LINKS CO-LOCATION OF EASYREACH LINKS It is possible to operate up to three EasyReach links with antennas mounted on the same mast. The antennas must be mounted so they do not interfere with each other. The following measures minimise interference: •... -
Page 36: Accessories
ACCESSORIES EasyReach User Manual ACCESSORIES The accessories available for the Plessey EasyReach are: Part Number Description 1B90949-x Feed cable (Standard loss, High flexibility) Where x is a 3 digit number indicating length in of a metre. For example the order code for a 10 metre length would be 1B90949-100. -
Page 37: Technical Specifications
EasyReach User Manual TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS The technical operational specifications for the EasyReach system are detailed following. System (E1 Version) RF range 2400 … 2483.5 MHz Link distance, with 22dBi antenna and 20 dB fade margin > 30 km... -
Page 38: Transmitter
TECHNICAL SPECIFICATIONS EasyReach User Manual Transmitter Nominal Power at antenna port +24 dBm, 10 dB adjustable Frequency stability 15 PPM maximum Modulation QPSK, direct sequence Receiver Reference level -63 dBm/50 ohms Overload point -25 dBm Sensitivity (typical) at -88 dBm at BER = 10E-6... -
Page 39: Technical Assistance Notes
EasyReach User Manual TECHNICAL ASSISTANCE NOTES TECHNICAL ASSISTANCE NOTES Surge Protection for Radio Equipment General Devices exist to assist in the protection of radio equipment from surges caused by lightning strikes and nuclear blasts. The level of protection based on the fact that damage thresholds for microwave diodes are in the order of 1.E-8 joules. - Page 40 TECHNICAL ASSISTANCE NOTES EasyReach User Manual Grounded Antennas Often the antennas are grounded. A most simple example is the folded dipole. Only at the intended frequencies are the paths separated by the characteristic impedance. Away from the radiating elements, the path of least resistance to good earth, will be the one taken lightning surge current.
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Page 41: Standard Earthing Practices
EasyReach User Manual TECHNICAL ASSISTANCE NOTES Standard Earthing Practices Optimum system performance can ONLY be achieved if correct earthing practices have been adopted. Although it may seem obvious, this is an area that is often neglected or compromised. It is essential that the incoming supply, the 19-inch rack, the antenna feeder, the mast, and all interconnecting bulkheads be ALL solidly grounded.
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