Toshiba HHGP1 GPS Receiver User Manual
Contents
1. FRONT VIEW a 1PPS OUT DEM GPS UNIT 000 BY gt Se ERROR O REAR VIEW dl J Nr re ie ae e sa a oN S cz 00000000 e amp G orr E INPUT 69 aN ANTI No Device Indication Functions O Yellow LED 5V Turns on when the power 5Vdc is supplied 2 Yellow LED 1PPS OUT Blinks when 1PPS signals are output synchronously with UTC RedLED ERROR Turns on when the internal crystal oscillator stops DIP switches DSW Set the GPS receiver unit settings During operation these DIP switches are covered to prevent erroneous operations Signal output ports OPT OUT Outputs time signals The optical fibre is connected here Power supply switch INPUT Turns on or off the power of the GPS receiver unit D Terminal block The 48V dc power is applied and the earth cable is connected P 48Vdc N OVdc E earth Antenna terminal ANT IN The antenna cable is connected Figure 3 2 1 Outline and Functions of GPS Receiver Unit TOSHIBA 6F2S0738 4 Handling 41 Setting the GPS Receiver Unit The GPS receiver unit is set in accordance with the requirements of the system by using the DIP switches located on the front panel of the unit To prevent erroneous operations the DIP switches are protected with a cover As shown in Figure 4 1 1 when the cover is rotated after looseni2. Earth the arrester only Figure 6 6 1 External Connection of GPS Receiver Unit TOSHIBA 6F2S0738 7 Preparation for Installation The following issues should be considered prior to commencing installation of the system 7 1 Selecting an Antenna and Cables The choice of antenna and cable types should be made based on the distance from the antenna installation site to the GPS receiver unit installation site and also on the cabling conditions Coaxial cables of characteristic impedance 50 ohms are required The signal frequency is 1 57GHZ The antennas may be selected according to the distance between the sites In the case of areas where snow is prevalent the use of pole shaped antennas is advisable The maximum extension lengths of cables based on the combinations of antennas and cables are shown in Table 7 1 1 It shows the lengths from the antenna to the GPS receiver unit Table 7 1 1 Maximum Extension Lengths of Cables Based on Combinations of Antennas and Cables Coaxial Cable Type RG213 Fujikura 5D FB Belden 9913 Westflex 103 Fujikura 8D FB GPA 017S antenna 25m 35m 35m 35m GPA 014B antenna 33m 50m 75m 75m 75m 7 2 Selecting Coaxial Cables and Conversion Adapters N type NP connectors are installed on both ends of the coaxial cables Conversion adapters are required since different types of connector are fitted on the antenna surge arrestor and GPS receiver Required conversion adapters are as shown in T
3. In high reliability mode the unit outputs the 1PPS signal only when no failed satellites are detected In the case of two or more failed satellites correct operation of the unit cannot be assured Inthe case of clock range change the switch should be OFF before 2019 and ON after 2020 For the details see the Appendix D 4 2 How to Turn on the Power Turn on the power switch Power ON is confirmed by the illumination of the 5V LED on the front panel of the unit 4 3 Checking the 1PPS Signal After the power is turned on check that 1PPS signals are output If 1PPS signals are not output it is impossible to use the time signals that are output from the GPS receiver unit Output of 1PPS signals is confirmed by the blinking of the 1PPS OUT LED on the front panel of the unit TOSHIBA 6F2S0738 5 Operation 5 1 1PPS Signal Output The GPS receiver unit outputs 1PPS signals with each pulse defining the instant of time described by the preceding frame of serial data For the time signal transmission format refer to Appendix D Following power up the GPS receiver begins outputting 1PPS signals after the acquisition ofthe almanac data and the estimation of the receiver location or the antenna location to be more exact are completed Almanac data received from the satellites include satellites outline orbit information and UTC time correction parameters It takes about 12 to 30 minutes to acquire the data The almanac
4. s own earthing point Make the connection distance between the arrester and the earthing point as short as possible and protect the earth cable with an insulation pipe The surge arrestor must have its own direct connection to earth and must not share an earth connection with other equipment Failure to comply with this requirement will result in risk of electric shock at time of lightening strike 6 5 Installing Fibre Optics For the fibre optic connection multi mode GI fibre 62 5 125 um is used When laying fibre optic lines ensure a minimum curvature radius of 50 mm MACAUTION Do not bend the fibre optic cable sharply as this may damage it and may cause malfunctions Ensure that fibre optic connectors are fixed securely 15 TOSHIBA 6F2S0738 6 6 Connecting the Power Supply and the Earthing Terminal Connect the 48Vdc power cable and the earth cable to the terminal block with M4 crimped terminals For safety purposes make sure that the earth connection is reliable ACAUTION The earthing terminal must be securely earthed The failure to ground may cause malfunctions electric shocks or injury Fibre optic cable to relay Re 1 vA ESS ee A AJ P CO0O0000C0O Sn OFF E INPUT Es er T Adapter L gt Earth Antenna Co axial cable Adapter Arrester Earth Co axial cable
5. O 23 9 amp _ i Y iS 260 0 7 N V a y 12 5 7 0 aoe 45 0 70 0 IR IE A A EEE Re nn ls AI i Y i 12 5 4 R3 5 70 gt i i 5 2900 308 0 7 Panel cutout 4 47 hole 45 266 TOSHIBA 6F2S0738 Appendix B Technical Data rd TOSHIBA TECHNICAL DATA Ratings DC power supply AC ripple on de supply IEC 60255 11 DC supply interruption IEC 60255 11 Permitted duration of de supply voltage 6F2S0738 48Vdc 10W Operative range 38 4 to 57 6Vdc maximum 12 less than 10ms at 48V dc interruption to maintain normal operation Mechanical design Weight Installation Receiving function Number of receiving satellites Receive signals Receive frequency Time transfer accuracy 2 7kg Flush mounting Eight satellites received in parallel L1 C A code 1575 42 MHz Within 2us with respect to UTC When the receiver is tracking GPS Satellites Data backup Data life Communication Interface Connection Cable type Wavelength Cable Length GPS antenna interface Preamp power supply for Antenna Connection Cable type GPS antenna NE Gain 10 to 35dB Antenna Amp Cable more than 16 hours ST connector GI multimode optical fibre 62 5 125um or 50 125um 820nm 0 to 1km 3dB km Min 4 5V at 20mA Min 4 0V at 40mA BNC connector 50 ohm coaxial cable Max 3dB nr TOSHIBA 6F2S0738 Environmental
6. start to blink after power ON Check that the DIP switches are set to proper positions It takes a long time until In cases where the power has been turned off for 16 hours or more internal back up data may 1PPS OUT LED starts be lost and it may take about 30 minutes before the unit is ready to output the 1PPS signal This blinking after power ON case is not an error However if 1PPS is not output after about 30 minutes check that the antenna is installed in a satisfactory location During operation the 1PPS Check to make sure that the antenna is installed in a satisfactory location output is interrupted Data cannot be detected on Check that the optical fibre is connected securely and that it is not damaged or severely bent the receiving device minimum bend radius is 50mm The 1PPS signal or the time Possible failure of the internal receiver data is irregular 1PPS OUT LED does not Check that the DIP switches are set to proper positions turn on If a failure continues stop using the GPS receiver unit and contact the vendor 19 TOSHIBA 6F2S0738 20 TOSHIBA 6F2S0738 Appendix Outline of GPS Receiver Unit te TOSHIBA 6F2S0738 Outline A RCE fe ah i 9 O i O 162 5 amp a 140 0
7. are too weak to be received In terms of the impact of weather satellite signals can be received correctly while it is raining or lightly snowing or while a small amount of snow is piled on the antenna however during lightening or heavy snow the receive status may deteriorate temporarily TOSHIBA 6F2S0738 Version up Records Version Date Revised Section Contents No 0 0 May 23 2001 First issue 1 0 Jun 22 2001 3 2 Modified Figure 3 2 1 5 1 Modified Figure 5 1 1 6 6 Modified Figure 6 6 1 7 1 Modified descriptions in Section 7 1 Appendices Modified Appendices B C I and K 1 1 Jul 19 2001 Corrected Type of GPS unit HHGP3 HHGP1 4 1 Modified descriptions in Section 4 1 Appendix D Modified descriptions Of 2 Date rollover in Appendix D 1 2 Jul 25 2001 6 3 Corrected Type of GPS antenna GPA 01T gt GPA 016 GPA 14B gt GPA 016B 1 3 Sep 10 2001 3 1 Modified Figure 3 1 1 3 2 Modified Figure 3 2 1 4 Modified descriptions in Chapter 4 and Section 4 1 5 1 Modified descriptions in Section 5 1 6 6 Modified Figure 6 6 1 8 2 Modified descriptions in Section 8 2 Appendices Modified Appendices A B C and D 1 4 Jul 30 2002 Appendix B Modified the description in Conducted and Radiated Emissions 1 5 Mar 28 2003 6 3 Changed Type of GPS antenna and Figure 6 3 1 GPA 016 GPA 017S Added Figure 6 3 3 7 1 Modified Table 7 1 1 Appendix C Changed specification and outline of an
8. i e GPS time is output until acquisition of the almanac data is completed The GPS time deviates from UTC time by an accumulated number of leap seconds When reception of the almanac data is completed then UTC time is output Any device receiving this output data can distinguish between the RTC GPS and UTC time data since this is indicated in the data itself TOSHIBA 6F2S0738 6 Installation 6 1 Receipt of GPS Receiver Unit When GPS receiver units are received carry out the acceptance inspection immediately In particular check for damage during transportation and if any is found contact the vendor Always store the GPS receiver units in a clean dry environment 6 2 Installing GPS Receiver Unit ACAUTION Do not remove flanges from the main unit as this may cause a failure The flanges attached to both sides of the unit are used to fix the main unit to a rack or plain table installed in a stable location 6 3 Installing Antenna A DANGER A surge arrester must be installed between the antenna and the GPS receiver unit It must be grounded according to the methods specified in section 6 4 so as to prevent injury or malfunction Install the antenna in the specified location in the method shown in the diagrams below CAUTION An improper antenna installation location may cause malfunctions Locate the antenna as far as possible from other antennas If the antenna is located within one meter from other antennas it
9. 1PPS signal is output in normal mode if signals from one or more satellites are received and two or more in high reliability mode The initialization time for the 1PPS signal at power up varies as shown in Table 5 1 1 depending on the state of the almanac data back up Table 5 1 1 1PPS Output Start Time Back up of almanac data Initial time needed for 1PPS signal output from power on Lost 30 seconds to 1 hours 1 Available 10 seconds to 1 hours 1 1 It may take further time depending on constellation of satellites and antenna position 10 TOSHIBA 6F2S0738 Number of receivable satellite signals Five receivable satellite signals Four receivable satellite signals au TWO e nn satellite signals One receivable Satellite Signal O N FN OD 1PPS output 1PPS output I 1 l I i i I I 1 l 1 1 I In the case of normal mode I L i I 1 I f l 1 I 1 I l Almanac data reception 12 to 30 minutes ee es ea 1PPS output 1PPS stop 1PPS output gt Kin the case of high reliability mode Figure 5 1 1 Receiving Satellite Signals and 1PPS Output Status 5 2 Time Data Output On power up time data serial data consisting of year month date and hour minute second is output from the receiver s internal RTC real time clock If satellite signals are received then time data transmitted by the satellite
10. Data Output 11 6 Installation 12 6 1 Receipt of GPS Receiver Unit 12 6 2 Installing GPS Receiver Unit 12 6 3 Installing Antenna 12 6 4 Installing Surge Arrester 15 6 5 Installing Fibre Optics 15 6 6 Connecting the Power Supply and the Earthing Terminal 16 7 Preparation for Installation 17 7 1 Selecting an Antenna and Cables 17 7 2 Selecting Coaxial Cables and Conversion Adapters 17 7 3 Selecting an Antenna Installation Location 18 8 Maintenance 19 8 1 Regular Maintenance 19 8 2 Troubleshooting 19 TOSHIBA 6F2S0738 Appendix A Outline of GPS Rceiver Unit 21 Appendix B Technical Data 23 Appendix C Specification of Recommended Antenna and Arrester 27 Appendix D Supplement 31 E The data given in this manual are subject to change without notice Ver 1 6 TOSHIBA 6F2S0738 4 Introduction The GPS Global Positioning System receiver unit is a device that receives the information from satellites and outputs time signals synchronous to UTC Universal Coordinated Time to external devices The GPS receiver unit provides multiple outputs with optical signals for noise immunity 2 Characteristics E Highly accurate time signal output Realizes a precision with respect to 2us for UTC UTC Universal Coordinated Time excluding the propagation delay time on the cable E Reduced cabling work Adopting the signal superimposition method the unit can be connected to an external device with a single optical fibre only E Appli
11. Performance Claims for GPS Receiver Atmospheric Environment Temperature 1EC60068 2 1 2 Operating range 10 C to 55 C Storage Transit 25 C to 70 C Humidity IEC60068 2 3 56 days at 40 C and 93 relative humidity Mechanical Environment Vibration IEC60255 21 1 Response Class 1 Endurance Class 1 Shock and Bump IEC60255 21 2 Shock Response Class 1 Shock Withstand Class 1 Bump Class 1 High Voltage Environment Dielectric Withstand 1EC60255 5 2kVrms for 1 minute between PSU terminals and earth High Voltage Impulse IEC60255 5 Three positive and three negative impulses of 5kV peak 1 2 50 1s 0 5J between all terminals and between PSU terminals and earth Electromagnetic Environment High Frequency IEC60255 22 1 Class 3 1MHz 2 5kV applied to PSU terminals in common mode Disturbance 1MHz 1 0kV applied to PSU terminals in differential mode Damped Oscillatory 1EC61000 4 12 0 1MHz 2 5kV applied to PSU terminals in common mode Wave EN61000 4 12 Class 3 0 1MHz 1 0kV applied to PSU terminals in differential mode Electrostatic 1EC60255 22 2 Class 4 8kV contact discharge Discharge 15kV air discharge Radiated RF IEC60255 22 3 Class 3 Field strength 10V m for frequency sweeps of 80MHZ to 1GHz Electromagnetic and 1 7GHz to 2 2GHz Additional spot tests at 80 160 450 Disturbance 900 and 1890MHz Fast Transient IEC60255 22 4 Class 4 4kV 2 5kHz 5 50ns applied to PSU terminals in common Disturbance mode Con
12. TOSHIBA 6F2S0738 INSTRUCTION MANUAL GPS RECEIVER UNIT HHGP1 TOSHIBA CORPORATION TOSHIBA Corporation 2001 All Rights Reserved Ver 1 6 TOSHIBA 6F2S0738 Safety Precautions Before using this product please read this chapter carefully This chapter describes the safety precautions recommended when using the GPS receiver unit type HHGP1 Before installing and using the equipment this chapter must be thoroughly read and understood Explanation of symbols used Signal words such as DANGER WARNING and two kinds of CAUTION will be followed by important safety information that must be carefully reviewed A DANGER Indicates an imminently hazardous situation which will result in death or serious injury 1f you do not follow the instructions AWARNING Indicates a potentially hazardous situation which could result in death or serious injury if you do not follow the instructions ACAUTION Indicates a potentially hazardous situation which if not avoided may result in minor injury or moderate injury CAUTION Indicates a potentially hazardous situation which if not avoided may result in property damage TOSHIBA 6F2S0738 DANGER e Installing arrester Install a surge arrester between the antenna and the GPS receiver and ground it in accordance with the guidelines in this manual Otherwise it may cause electric shocks injury or malfunction AWARNING e Exposed terminals Do not to
13. W x 48 H x 20 D mm Weight 113g N J CONNECTOR 48 EARTH CABLE 62 5 3 2 78 CA 23RS 20 Outline of Arrester EDO TOSHIBA 6F2S0738 TOSHIBA 6F2S0738 Appendix D Supplement ro TOSHIBA 6F2S0738 1 Time Signal Transmission Format The time signal format is shown below consisting of 4 800bps serial data indicating the time and 1PPS timing signal indicating the instant of time corresponding to the serial data 1PPS timing signal Y Serial data 4800bps Signal for next second Signal code format ASCII codes based on NMEA 0183 data Output data GPtps data time and 1PPS flag GPtst data self test result 2 Date Rollover The GPS week number sent from the satellite returns to 0 i e rollover every 19 6 years therefore the GPS receiver unit cannot output the date data correctly This is the rollover problem To solve this problem the GPS receiver unit provides a DIP switch When the DIP switch 4 is set to OFF and the power is ON the GPS receiver unit starts outputting the date and time from any date between April in 2001 and September in 2020 When the DIP switch 4 is set to ON and the power is ON the GPS receiver unit starts outputting the date and time from any date between October in 2019 and March in 2039 The default setting of the DIP switch 4 is OFF After 2020 the DIP switch 4 should be set ON so that the GPS unit outputs the date data correctly No
14. able 7 2 1 Table 7 2 1 List of Conversion Adapters Part Required conversion adapter Remark Connector conversion NJ BNCP adapter or NJ TNCP The 5D FB and RG213 cables can from coaxial cable to conversion cable within 1 m be fitted with a BNC P connector antenna in which case no conversion adapter is needed for connection to the BNC fitted antenna and GPS receiver unit Connector conversion NJ BNCP adapter from the coaxial cable to the GPS receiver unit TOSHIBA 6F2S0738 7 3 Selecting an Antenna Installation Location ACAUTION If antenna is not located in the method described below it may not be possible to receive the GPS signal correctly Obstructing object is not allowed in this area Antenna Support fix to fence etc Neighbouring building The antenna is installed outdoors to receive satellite transmissions It should be installed in a location that offers an unobstructed view of the sky with an elevation angle of 15 degrees to horizontal This is imperative for operation in high reliability mode with operation of the TRAIM function since it is necessary to received signals from satellites which are widely spaced These restrictions can be relaxed for normal mode operation Since the alignment of satellites varies during the course of a day it is necessary to test that the installation is adequate to allow immediate location estimation and
15. cation to a large system Equipped with eight ports for output the time distribution can be made to multiple devices separated from each other by a maximum of 1 km E High reliability Aimed at reducing the number of parts through high integration circuits and high density mounting technology thus securing high reliability TOSHIBA 6F2S0738 3 Configuration 3 1 Configuration of GPS Receiver Unit Figure 3 1 1 shows the configuration of the GPS receiver unit The GPS receiver unit receives electromagnetic signals from satellites through an antenna and outputs time data to external devices Through an internal receiver the unit generates serial time data and 1 second pulses 1PPS signals based on the received electromagnetic signal Each 1PPS signal occurs at the instant in time given by its accompanying frame of serial data To reduce the number of cables to external devices time data and 1PPS signals are superimposed through a mixing circuit before being output to the optical fibre NY Antenna Receiver Time data Backup Capacitor 1 Pulse per second 1PPS Mixing Circuit Electrical to optical Converter Fibre optic Cable Power supply Noise DC DC 48V 5V Converter OV OV Figure 3 1 1 Configuration of GPS Receiver Unit TOSHIBA 6F2S0738 3 2 Outline of GPS Receiver Unit and Function Figure 3 2 1 shows outline and functions of GPS receiver unit
16. continuous 1PPS output for an entire one day period On sites where installation conditions are not ideal then it may be necessary to conduct a survey to establish whether reception quality is adequate This may include situations where the antenna must be mounted on a wall or if the visual field is narrow or if the site is close to structures which reflect electromagnetic waves 18 TOSHIBA 6F2S0738 8 Maintenance 8 1 Regular Maintenance Surge arrestors are degraded by lightening induced voltages resulting in changes to their discharge breakdown voltage They require periodic checks and should be replaced if necessary They can be checked by removing the internal components from the arrestor cabinet The glass pipe part should be inspected and if it has turned black then replacement is required ACAUTION The surge arrestor must be periodically maintained to prevent malfunction 8 2 Troubleshooting In the event of failure or unexpected behaviour of the unit the following items should be checked Symptom Possible cause and or remedy 5V LED is off Check that power connections to the unit are made correctly and that the power supply switch on the front panel is ON If so then a failure of the internal power supply unit is a possible cause ERROR LED is on The GPS receiver unit is failed The internal circuit clock has stopped oscillating 1PPS OUT LED does not Check the antenna location and connection
17. data is backed up temporarily following power down If power is removed for 16 hours or more then the data back up may be lost and will have to be re acquired on power up If the almanac data back up is valid on power up acquisition of almanac data is unnecessary To estimate the location signals from four or more satellites are required in the case of normal mode and five or more are required in the case of high reliability mode Note Ifthe antenna is positioned in the shade of buildings or in other locations where it is difficult to receive satellite signals then location estimation may take a longer time or may even be impossible If satellites are closely aligned in relation to the receiver then it may not be possible to achieve a location estimate even when the necessary numbers of signals are received The reason for this is that as the angle between received signals becomes small the error in location estimation becomes large Accordingly installing an antenna in a location of narrow visual field such as between tall buildings may make the location estimation impossible When using the high reliability mode and or TRAIM function the alignment of satellites has even stricter limits The location estimation may take more than an hour depending on constellation of satellites in case of the high reliability mode The location estimation is required each time the power is turned on After the location estimation is completed the
18. ducted RF IEC60255 22 6 Class 3 10Vrms applied over frequency range 150kHz to 100MHz Electromagnetic Additional spot tests at 27 and 68MHz Disturbance Conducted 1EC61000 4 16 Varying voltages applied in common mode as follows ee oe EN61000 4 16 Class 3 15Hz to 150Hz 10V gt 1Vrms 20dB decade req Range 15Hz to f 150kHz 150Hz to 1 5kHz 1Vrms 1 5kHz to 15kHz 1 gt 10Vrms 20dB decade 15kHz to 150kHz 10Vrms Power Frequency IEC60255 22 7 300V 50Hz for 10s applied to PSU terminals in common mode Disturbance TOSHIBA 6F2S0738 Surge Immunity 1EC61000 4 5 1 2 50us surge applied to PSU terminals in common differential EN61000 4 5 modes 2kV 1kV peak Conducted and EN55022 Class A Conducted emissions Radiated Emissions 0 15 to 0 50MHz lt 79dB peak or lt 66dB mean 0 50 to 30MHz lt 73dB peak or lt 60dB mean Radiated emissions 30 to 230MHz lt 30dB 230 to 1000MHz lt 37dB Power Frequency 1EC61000 4 8 Field applied at 50Hz with strengths of Magnetic Field EN61000 4 8 Class 4 30A m continuously 300A m for 1 second Pulsed Magnetic Field IEC61000 4 9 6 4 16us magnetic pulses positive and negative applied with EN61000 4 9 Class 5 magnitude 1000A m Damped Oscillatory 1EC61000 4 10 Oscillation frequencies of 0 1MHz and 1MHz applied with Magnetic Field EN61000 4 10 Class 5 magnitude 100A m European Commission Directives 89 336 EEC Compliance with the European Commission Electromagnetic Compatibil
19. ity Directive is demonstrated according to generic EMC standards EN50081 2 and EN50082 2 73 23 EEC Compliance with the European Commission Low Voltage Directive is demonstrated according to generic safety standards EN61010 1 and EN60950 TOSHIBA 6F2S0738 Appendix C Specification of Recommended Antenna and Arrester TOSHIBA 6F2S0738 Recommended Antenna Type GPA 014B GPA 017S Manufacturer FURUNO Electric Co Ltd FURUNO Electric Co Ltd Operating connector BNC J TNC J Applicable connector BNC P TNC P Gain 29 to 35dB 22 to 33dB Preamplifier noise index No more than 2 1dB No more than 1 6dB Supply voltage 4 to 13V 4 0 to 5 5V Current consumption 25 to 30mA No more than 25mA Operating temperature 30 to 80 C 25 to 65 C Storage temperature 40 to 85 C 35 to 75 C Weight Approx 300g Approx 123 30g 42 2 69 290 85 5 BNC J 3D XV 200 3D 2V 200 L I 7 Bo TNC J GPA 014B GPA 017S Outline of Antenna SS OB A TOSHIBA 6F250738 Recommended Arrester Type CA 23RS Manufacturer DAI ICHI DENPA KOGYO CO LTD Frequency range DC 2500MHz VSWR No more than 1 1 Loss No more than 0 2dB Withstand power 200W PEP Discharge breakdown voltage DC 230V 15 Impulse wave discharge voltage 1 000V Impulse wave current endurance 6 000A Impulse wave repetitive discharge endurance 1X40 us 500A at least 500 times Insulation resistance at 100Vdc At least 10 000M Q Connector N J N J Dimensions 78
20. may not be possible to receive the GPS signal correctly Antenna Another antenna More than 1 meter Locate over the top of fence Locate over the top of fence NL TOSHIBA 6F2S0738 Don t locate in shade of obstructing objects Box antenna etc Don t locate in shade of obstructing objects Box antenna etc Next connect the antenna to the arrestor with a coaxial cable The following antennas are recommended GPA 014B or GPA 017S manufactured by Furuno Electric Co Ltd The specifications for and dimensions of these antennas are described in Appendix C The antenna should be fixed to a support pole with Debe clamps and U bolts An example installation of the Furuno Electric antenna using the accompanying clamps is shown in Figures 6 3 1 6 3 2 and 6 3 3 Antenna Wind the tape to cover the whole of Parker clamp junction and U shaped gap Auxiliary mounting bracket Pipe Leave the connector slightly loose so Support pole 4 25 to 70 that no excessive force is applied Connector junction Convex Antenna cable Insulation prevention measure Autofusion tape vinyl tape or water proof cap Figure 6 3 1 An Example of Installation Using GPA 017S for Antenna 13 TOSHIBA 6F2S0738 Debe clamp Antenna Connector junction Insulation treatment Autof
21. ng the cover screw with a screwdriver the switches are exposed thus making it possible to handle them Switches are handled with a sharp pointed object such as a screwdriver and set to ON or OFF by pushing them up or down respectively After accessing the switches tighten the cover screw to its original state Q LL LI mm 1234 Figure 4 1 1 Switch Operation Method Four switches are numbered 1 to 4 from left to right The numbers are indicated on their respective switches Table 4 1 shows the function and setting of each switch All the switches are set to OFF for default setting TOSHIBA 6F2S0738 Table 4 1 Setting the Switches Switch a Setting N Function 9 ON OFF default 1 Location mode Location fixing mode Location estimation mode change 2 Reliability TRAIM Normal TRAIM OFF High reliability TRAIM ON mode change 3 Optical level test Continuous light emission Normal light emission 4 Clock range 2020 2039 Year 2001 2019 Year change Note Settings can be changed when the power is ON but changes are not valid until the power has been switched OFF and ON again except in the case of switch 3 for optical level testing which is valid immediately Inthe case of location mode the location estimation mode OFF should be used Inthe case of reliability TRAIM the High reliability Train ON mode SW OFF should be used
22. te 1 The date and time data from the GPS receiver unit are used for the recording data of GRL100 relay and do not influence the function of GRL100 relay The 1 PPS signal is output independently of the switch 4 setting Note 2 For one year from October 2019 to September 2020 any setting of the DIP switch 4 is allowed So in this term the changing of the DIP switch 4 is recommended 3 High reliability Mode and TRAIM Function TRAIM Time Receiver Autonomous Integrity Monitoring is a function which allows the unit to detect an error in the signal from a satellite For operation of this function it is necessary to receive one additional signal to the minimum number normally required for output of the 1PPS RE TOSHIBA 6F2S0738 pulse If the necessary number of satellites are available then the unit carries out error detection and removal of erroneous signals In the event of two or more satellites in error the operation is not assured In high reliability mode the receiver will only output the 1PPS signal when no TRAIM alarm occurs If any satellite is in error then it must be excluded and so two or more satellites are required for the purpose of outputting 1PPS Satellite alignment is subject to strict limits for operation of the TRAIM function The antenna must be located with a wide field of view 4 Conditions for Receiving Electric Waves from Satellites Signals from satellites at an elevation angle of less than 5 degrees
23. tenna GPA 016 gt GPA 017S 1 6 May 30 2003 4 1 Added the description in Note of Table 4 1 6 3 Added the description in Caution 7 3 Added Caution 34 TOSHIBA CORPORATION
24. uch the terminals of this equipment while the power is on as the high voltage generated is dangerous e Residual voltage Hazardous voltage can be present in the DC circuit just after switching off the DC power supply It takes approximately 30 seconds for the voltage to discharge e Fibre optic When connecting this equipment via an optical fibre do not look directly at the optical signal ACAUTION e Earth The earthing terminal of the equipment must be securely earthed CAUTION e Operating environment The equipment must only used within the range of ambient temperature humidity and dust detailed in the specification and in an environment free of abnormal vibration e Ratings Before applying the DC power supply to the equipment check that they conform to the equipment ratings e Connection cable Carefully handle the connection cable without applying excessive force e Modification Do not modify this equipment as this may cause the equipment to malfunction e Disposal When disposing of this equipment do so in a safe manner according to local regulations TOSHIBA 6F2S0738 Contents Safety Precautions 1 1 Introduction 5 2 Characteristics 5 3 Configuration 6 3 1 Configuration of GPS Receiver Unit 6 3 2 Outline of GPS Receiver Unit and Function 7 4 Handling 8 4 1 Setting the GPS Receiver Unit 8 4 2 How to Turn on the Power 9 4 3 Checking the 1PPS Signal 9 5 Operation 10 5 1 1PPS Signal Output 10 5 2 Time
25. usion tape vinyl tape or water proof cap Fix the cable to the support cable by making a circle while making sure the cable is long enough oaxial cable Support pole p38 to 64 Figure 6 3 2 An Example of Installation Using GPA 014B for Antenna A Antenna 00000 Parker clamp Auxiliary mounting Leave the connector slightly loose so bracket that no excessive force is applied Connector junction upport pole 427 to 90 Insulation prevention measure ape Autofusion tape vinyl tape or water proof cap Antenna cable Figure 6 3 3 An Example of Installation Using GPA 014B for Antenna B 14 TOSHIBA 6F2S0738 6 4 Installing Surge Arrester The GPS antenna must be installed outdoors so a surge arrestor is required as a measure against induced surges due to lightening This is not effective against a direct lightening strike The arrestor should be installed at the point where the coaxial cable from the antenna enters the building A recommended arrestor is CA 23RS made by Daiichi Denpa Kogyo The specifications for and the appearance diagram of the arrestor are described in Appendix C The surge arrestor is not water proof and should be installed in a box Connect the coaxial cable to the arrestor by an N type connector Stitch or solder a copper earth wire 2 5 to 3 2 mm in diameter to the earthing terminal on the arrestor Connect the other end of the wire to the arrestor
Download Pdf Manuals
Related Search