Toshiba GPS Receiver HHGP1 User Manual

6 F 2 S 0 7 3 8  
INSTRUCTION MANUAL  
GPS RECEIVER UNIT  
HHGP1  
© TOSHIBA Corporation 2001  
All Rights Reserved.  
( Ver. 1.6 )  
 
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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.  
Indicates an imminently hazardous situation which will result in death or  
serious injury if you do not follow the instructions.  
DANGER  
Indicates a potentially hazardous situation which could result in death or  
serious injury if you do not follow the instructions.  
WARNING  
CAUTION  
CAUTION  
Indicates a potentially hazardous situation which if not avoided, may result in  
minor injury or moderate injury.  
Indicates a potentially hazardous situation which if not avoided, may result in  
property damage.  
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DANGER  
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.  
WARNING  
Exposed terminals  
Do not touch the terminals of this equipment while the power is on, as the high voltage generated  
is dangerous.  
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.  
Fibre optic  
When connecting this equipment via an optical fibre, do not look directly at the optical signal.  
CAUTION  
Earth  
The earthing terminal of the equipment must be securely earthed.  
CAUTION  
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.  
Ratings  
Before applying the DC power supply to the equipment, check that they conform to the  
equipment ratings.  
Connection cable  
Carefully handle the connection cable without applying excessive force.  
Modification  
Do not modify this equipment, as this may cause the equipment to malfunction.  
Disposal  
When disposing of this equipment, do so in a safe manner according to local regulations.  
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Contents  
Safety Precautions  
1
5
5
1. Introduction  
2. Characteristics  
3. Configuration  
6
6
7
3.1 Configuration of GPS Receiver Unit  
3.2 Outline of GPS Receiver Unit and Function  
4. Handling  
8
8
9
9
4.1 Setting the GPS Receiver Unit  
4.2 How to Turn on the Power  
4.3 Checking the 1PPS Signal  
5. Operation  
10  
10  
11  
5.1 1PPS Signal Output  
5.2 Time Data Output  
6. Installation  
12  
12  
12  
12  
15  
15  
16  
6.1 Receipt of GPS Receiver Unit  
6.2 Installing GPS Receiver Unit  
6.3 Installing Antenna  
6.4 Installing Surge Arrester  
6.5 Installing Fibre Optics  
6.6 Connecting the Power Supply and the Earthing Terminal  
7. Preparation for Installation  
17  
17  
17  
18  
7.1 Selecting an Antenna and Cables  
7.2 Selecting Coaxial Cables and Conversion Adapters  
7.3 Selecting an Antenna Installation Location  
8. Maintenance  
19  
19  
19  
8.1 Regular Maintenance  
8.2 Troubleshooting  
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Appendix A Outline of GPS Rceiver Unit  
Appendix B Technical Data  
21  
23  
27  
31  
Appendix C Specification of Recommended Antenna and Arrester  
Appendix D Supplement  
The data given in this manual are subject to change without notice. (Ver. 1.6)  
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1. 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  
Highly accurate time signal output  
Realizes a precision with respect to ±2µs for UTC (UTC: Universal Coordinated Time)  
(excluding the propagation delay time on the cable).  
Reduced cabling work  
Adopting the signal superimposition method, the unit can be connected to an external device  
with a single optical fibre only.  
Application 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.  
High reliability  
Aimed at reducing the number of parts through high-integration circuits and high-density  
mounting technology, thus securing high reliability.  
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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.  
Antenna  
Backup  
Receiver  
Capacitor  
Time data  
1 Pulse per second  
(1PPS)  
Mixing Circuit  
E/O  
E/O  
E/O  
E/O  
E/O  
E/O  
E/O  
E/O  
Electrical-to-optical  
Converter  
Fibre-optic Cable  
Power supply  
Noise  
Filter  
DC/DC  
Converter  
+48V  
0V  
+5V  
0V  
Figure 3.1.1  
Configuration of GPS Receiver Unit  
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3.2 Outline of GPS Receiver Unit and Function  
Figure 3.2.1 shows outline and functions of GPS receiver unit.  
FRONT VIEW  
① ② ③  
REAR VIEW  
48V  
No.  
Device  
Yellow LED  
Yellow LED  
Indication  
Functions  
Turns on when the power (5Vdc) is supplied.  
5 V  
1PPS OUT  
ERROR  
DSW  
Blinks when 1PPS signals are output synchronously with UTC.  
Turns on when the internal crystal oscillator stops.  
Red LED  
DIP switches  
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.  
Turns on or off the power of the GPS receiver unit.  
Power supply switch INPUT  
Terminal block  
__  
The 48V dc power is applied and the earth cable is connected.  
P: 48Vdc, N: 0Vdc, E: earth  
Antenna terminal  
ANT.IN  
The antenna cable is connected.  
Figure 3.2.1  
Outline and Functions of GPS Receiver Unit  
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4. Handling  
4.1 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 loosening 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.  
DSW  
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.)  
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Table 4.1 Setting the Switches  
Setting  
Switch  
No.  
Function  
ON  
OFF (default)  
1
2
Location mode  
change  
Location fixing mode  
Location estimation mode  
Reliability/TRAIM  
mode change  
Normal/TRAIM OFF  
High-reliability/TRAIM ON  
3
4
Optical level test  
Continuous light emission  
2020 – 2039 (Year)  
Normal light emission  
2001 – 2019 (Year)  
Clock range  
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.  
-
-
In the case of location mode, the location estimation mode (OFF) should be used.  
In the case of reliability/TRAIM, the High-reliability/Train ON mode (SW-OFF)  
should be used.  
-
-
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.  
In the 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.  
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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 of the  
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 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: If the 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 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  
30 seconds to 1 hours (*1)  
Lost  
Available  
10 seconds to 1 hours (*1)  
(*1) It may take further time depending on constellation of satellites and antenna position.  
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Number of receivable  
satellite signals  
Five receivable  
satellite signals  
Four receivable  
satellite signals  
6
5
4
3
2
1
0
Two receivable  
satellite signals  
One receivable  
satellite signal  
Time  
Stop  
1PPS output  
1PPS output  
Power ON  
(In the case of normal mode)  
Almanac data reception  
(12 to 30 minutes)  
1PPS output  
1PPS stop  
1PPS output  
(In 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 (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.  
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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  
CAUTION  
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  
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 may not be possible to receive the GPS signal correctly.  
Another antenna  
Antenna  
More than 1 meter  
Locate over the top of fence.  
Locate over the top of fence.  
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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  
Parker clamp  
Wind the tape to cover the whole of  
junction and U-shaped gap.  
Auxiliary mounting  
bracket  
Pipe  
Leave the connector slightly loose so  
that no excessive force is applied.  
Support pole (φ25 to 70)  
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  
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Debe clamp  
Antenna  
Connector junction  
Insulation treatment  
(Autofusion 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.  
Coaxial cable  
Support pole (φ38 to 64)  
Figure 6.3.2  
An Example of Installation, Using GPA-014B for Antenna (A)  
Antenna  
Parker clamp  
Leave the connector slightly loose so  
that no excessive force is applied.  
Auxiliary mounting  
bracket  
Connector junction.  
Support pole (φ27 to 90)  
Tape  
Insulation prevention measure  
(Autofusion tape, vinyl tape or water-proof cap)  
Antenna cable  
Figure 6.3.3  
An Example of Installation, Using GPA-014B for Antenna (B)  
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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’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 µm) is used. When laying fibre  
optic lines, ensure a minimum curvature radius of 50 mm.  
CAUTION  
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.  
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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.  
CAUTION  
The earthing terminal must be securely earthed. The failure to ground may cause  
malfunctions, electric shocks or injury.  
Fibre optic cable to relay  
P
48V  
N
E
Adapter  
Earth  
Antenna  
Adapter  
Co-axial cable  
Arrester  
Co-axial cable  
Earth  
(Earth the arrester only.)  
Figure 6.6.1  
External Connection of GPS Receiver Unit  
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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  
16m  
Fujikura 5D-FB  
25m  
Belden 9913  
35m  
Westflex 103  
35m  
Fujikura 8D-FB  
35m  
GPA-017S antenna  
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 Table 7.2.1.  
Table 7.2.1  
List of Conversion Adapters  
Part  
Required conversion adapter  
Remark  
Connector conversion  
from coaxial cable to  
antenna  
NJ-BNCP adapter or NJ-TNCP  
conversion cable (within 1 m)  
The 5D-FB and RG213 cables can  
be fitted with a BNC-P connector,  
in which case, no conversion  
adapter is needed for connection  
to the BNC-fitted antenna and  
GPS receiver unit.  
Connector conversion  
from the coaxial cable to  
the GPS receiver unit  
NJ-BNCP adapter  
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7.3 Selecting an Antenna Installation Location  
CAUTION  
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.  
15°(maximum)  
Antenna  
Support pole  
fix to fence etc.)  
Roof of building  
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 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.  
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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.  
CAUTION  
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.  
start to blink after power ON. Check that the DIP switches are set to proper positions.  
It takes a long time until  
"1PPS OUT" LED starts  
blinking after power ON.  
In cases where the power has been turned off for 16 hours or more, internal back-up data may  
be lost and it may take about 30 minutes before the unit is ready to output the 1PPS signal. This  
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.  
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Appendix A  
Outline of GPS Receiver Unit  
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Outline  
162.5  
140.0  
2.3  
260.0  
12.5  
45.0  
7.0  
70.0  
12.5  
7.0  
4-R3.5  
290.0  
308.0  
Panel cutout  
4-φ7 hole  
45  
15  
45  
72  
15  
266  
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Appendix B  
Technical Data  
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TECHNICAL DATA  
Ratings  
DC power supply:  
48Vdc-10W  
(Operative range: 38.4 to 57.6Vdc)  
AC ripple on dc supply IEC 60255-11:  
DC supply interruption IEC 60255-11:  
maximum 12%  
less than 10ms at 48Vdc  
Permitted duration of dc supply voltage  
interruption to maintain normal operation  
Mechanical design  
Weight:  
2.7kg  
Installation:  
Flush mounting  
Receiving function  
Number of receiving satellites:  
Receive signals:  
Eight satellites received in parallel  
L1 C/A code  
Receive frequency:  
1575.42 MHz  
Time transfer accuracy  
Within±2µs with respect to UTCWhen the receiver is tracking GPS Satellites)  
Data backup  
Data life:  
more than 16 hours  
ST connector  
Communication Interface  
Connection:  
Cable type:  
GI multimode optical fibre (62.5/125µm or  
50/125µm)  
Wavelength:  
820nm  
Cable Length:  
0 to 1km (3dB/km)  
GPS antenna interface  
Preamp power supply for Antenna  
Connection:  
Min 4.5V(at 20mA), Min 4.0V(at 40mA)  
BNC connector  
Cable type:  
50 ohm coaxial cable  
GPS antenna  
NF:  
Max 3dB  
Gain: 10 to 35dB(Antenna + Amp + Cable)  
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Environmental Performance Claims for GPS Receiver  
Test  
Standards  
Details  
Atmospheric Environment  
Temperature  
IEC60068-2-1/2  
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  
Seismic  
IEC60255-21-3  
Class 1  
High Voltage Environment  
Dielectric Withstand  
High Voltage Impulse  
IEC60255-5  
IEC60255-5  
2kVrms for 1 minute between PSU terminals and earth.  
Three positive and three negative impulses of 5kV(peak),  
1.2/50µs, 0.5J between all terminals and between PSU  
terminals and earth.  
Electromagnetic Environment  
High Frequency  
Disturbance /  
IEC60255-22-1 Class 3  
1MHz 2.5kV applied to PSU terminals in common mode.  
1MHz 1.0kV applied to PSU terminals in differential mode.  
Damped Oscillatory  
Wave  
IEC61000-4-12,  
EN61000-4-12 Class 3  
0.1MHz 2.5kV applied to PSU terminals in common mode.  
0.1MHz 1.0kV applied to PSU terminals in differential mode.  
Electrostatic  
Discharge  
IEC60255-22-2 Class 4  
8kV contact discharge.  
15kV air discharge.  
IEC60255-22-3 Class 3  
Radiated RF  
Electromagnetic  
Disturbance  
Field strength 10V/m for frequency sweeps of 80MHz to 1GHz  
and 1.7GHz to 2.2GHz. Additional spot tests at 80, 160, 450,  
900 and 1890MHz.  
Fast Transient  
Disturbance  
IEC60255-22-4 Class 4  
IEC60255-22-6 Class 3  
4kV, 2.5kHz, 5/50ns applied to PSU terminals in common  
mode.  
Conducted RF  
Electromagnetic  
Disturbance  
10Vrms applied over frequency range 150kHz to 100MHz.  
Additional spot tests at 27 and 68MHz.  
Conducted  
IEC61000-4-16,  
EN61000-4-16, Class 3  
Varying voltages applied in common mode as follows:  
15Hz to 150Hz: 10V 1Vrms (20dB/decade)  
150Hz to 1.5kHz: 1Vrms  
Disturbance over  
Freq. Range 15Hz to  
150kHz  
1.5kHz to 15kHz: 1 10Vrms (20dB/decade)  
15kHz to 150kHz: 10Vrms  
Power Frequency  
Disturbance  
IEC60255-22-7  
300V 50Hz for 10s applied to PSU terminals in common mode.  
25   
 
6 F 2 S 0 7 3 8  
Surge Immunity  
IEC61000-4-5,  
EN61000-4-5  
1.2/50µs surge applied to PSU terminals in common/differential  
modes: 2kV/1kV (peak)  
Conducted and  
EN55022 Class A  
Conducted emissions:  
Radiated Emissions  
0.15 to 0.50MHz: <79dB (peak) or <66dB (mean)  
0.50 to 30MHz: <73dB (peak) or <60dB (mean)  
Radiated emissions:  
30 to 230MHz: <30dB  
230 to 1000MHz: <37dB  
Power Frequency  
Magnetic Field  
IEC61000-4-8,  
Field applied at 50Hz with strengths of:  
30A/m continuously,  
EN61000-4-8, Class 4  
300A/m for 1 second.  
Pulsed Magnetic Field IEC61000-4-9,  
EN61000-4-9, Class 5  
IEC61000-4-10,  
EN61000-4-10, Class 5  
6.4/16µs magnetic pulses (positive and negative) applied with  
magnitude 1000A/m.  
Damped Oscillatory  
Magnetic Field  
Oscillation frequencies of 0.1MHz and 1MHz applied with  
magnitude 100A/m.  
European Commission Directives  
89/336/EEC  
Compliance with the European Commission Electromagnetic  
Compatibility 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.  
26   
 
6 F 2 S 0 7 3 8  
Appendix C  
Specification of Recommended  
Antenna and Arrester  
27   
 
6 F 2 S 0 7 3 8  
Recommended Antenna  
Type  
GPA-014B  
GPA-017S  
FURUNO Electric Co.,Ltd.  
TNC-J  
Manufacturer  
FURUNO Electric Co.,Ltd.  
BNC-J  
Operating connector  
Applicable connector  
Gain  
BNC-P  
TNC-P  
29 to 35dB  
22 to 33dB  
Preamplifier noise index  
Supply voltage  
No more than 2.1dB  
4 to 13V  
No more than 1.6dB  
4.0 to 5.5V  
Current consumption  
Operating temperature  
Storage temperature  
Weight  
25 to 30mA  
No more than 25mA  
- 25 to + 65℃  
- 35 to + 75℃  
Approx. 123 ± 30g  
- 30 to + 80℃  
- 40 to + 85℃  
Approx. 300g  
φ42.2  
φ69  
24  
290  
85.5  
200  
52  
3D-2V  
TNC-J  
3D-XV  
BNC-J  
200  
GPA017S  
GPA014B  
Outline of Antenna  
28   
 
6 F 2 S 0 7 3 8  
Recommended Arrester  
Type  
CA-23RS  
Manufacturer  
DAI-ICHI DENPA KOGYO CO., LTD.  
DC – 2500MHz  
Frequency range  
VSWR  
No more than 1.1  
No more than 0.2dB  
200W PEP  
Loss  
Withstand power  
Discharge breakdown voltage  
Impulse wave discharge voltage  
Impulse wave current endurance  
Impulse wave repetitive discharge endurance  
Insulation resistance at 100Vdc  
Connector  
DC 230V ±15%  
1,000V  
6,000A  
(1×40) µs, 500A, at least 500 times  
At least 10,000MΩ  
N-J / N-J  
Dimensions  
78(W)×48(H)×20(D)mm  
113g  
Weight  
N-J CONNECTOR  
48  
30  
EARTH CABLE  
φ2.5 – φ3.2  
19  
19  
20  
78  
CA23RS  
Outline of Arrester  
29   
 
6 F 2 S 0 7 3 8  
30   
 
6 F 2 S 0 7 3 8  
Appendix D  
Supplement  
31   
 
6 F 2 S 0 7 3 8  
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  
Serial data  
4800bps  
Signal for next second  
Signal code format:  
Output data:  
ASCII codes based on NMEA-0183 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.  
Note 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  
32   
 
6 F 2 S 0 7 3 8  
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 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.  
33   
 
6 F 2 S 0 7 3 8  
Version-up Records  
Version  
No.  
Date  
Revised Section  
Contents  
0.0  
1.0  
May. 23, 2001  
Jun. 22, 2001  
--  
First issue.  
3.2  
Modified Figure 3.2.1.  
Modified Figure 5.1.1  
Modified Figure 6.6.1.  
5.1  
6.6  
7.1  
Modified descriptions in Section 7.1.  
Modified Appendices B, C, I and K.  
Appendices  
1.1  
Jul. 19, 2001  
--  
Corrected Type of GPS unit. (HHGP3 HHGP1)  
Modified descriptions in Section 4.1.  
4.1  
Appendix D  
Modified descriptions 0f “2. Date rollover” in Appendix D.  
1.2  
1.3  
Jul. 25, 2001  
Sep. 10, 2001  
6.3  
Corrected Type of GPS antenna.  
(GPA-01TGPA-016, GPA-14BGPA-016B)  
3.1  
Modified Figure 3.1.1.  
3.2  
Modified Figure 3.2.1.  
4
Modified descriptions in Chapter 4 and Section 4.1.  
Modified descriptions in Section 5.1.  
Modified Figure 6.6.1.  
5.1  
6.6  
8.2  
Modified descriptions in Section 8.2.  
Modified Appendices A, B, C and D.  
Appendices  
1.4  
1.5  
Jul. 30, 2002  
Mar. 28, 2003  
Appendix B  
6.3  
Modified the description in Conducted and Radiated Emissions.  
Changed Type of GPS antenna and Figure 6.3.1. (GPA-016GPA-017S)  
Added Figure 6.3.3.  
7.1  
Modified Table 7.1.1.  
Appendix C  
Changed specification and outline of antenna. (GPA-016GPA-017S)  
1.6  
May.30, 2003  
4.1  
6.3  
7.3  
Added the description in Note of Table 4.1.  
Added the description in Caution.  
Added Caution.  
34   
 
 

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