JRC GPS 124 - User manual

- 1 -
INTRODUCTION
NOTES TO USERS
In order to ensure safe and correct use of the equipment, symbols in this manual and on
the equipment itself alert the user to important operational precautions that could prevent personal
injury or damage. The followings show such symbols and their meanings. Please read this manual
carefully and take note of these symbols.
Other Symbols and Their Meanings:
This symbol indicates that the action is prohibited.
This symbol indicates that the action must be taken.
WARNING This symbol indicates warning items that, if ignored,
may result in serious personal injury or even death.
Thank you for choosing the JRC GPS sensor GPS124.
This manual describes Model GPS124, JRC GPS Sensor (Receiver) with Built-In Antenna
and SBAS capability.
•To ensure correct operation of the GPS124, please read this Instruction Manual carefully before starting
to use.
•This manual should be kept on hand to provide as quick reference whenever you need it.
•It will also help you if you come across any problems in its operation.
ＧＰＳ ＳＥＮＳＯＲ
ＪＬＲ－４３４０
This symbol indicates cautionary items that, if ignored,
may result in personal injury or physical damage.
CAUTION
Prohibited
Do This
CODE: 7ZPNA4008 Sep. 2015 ed.6
JRC

- 2 -
SECTION 1 GENERAL INFORMATION
1.1 Function
By receiving GPS signals from up to twelve satellites, GPS124 sensor provides highly accurate
position fixing.
Furthermore, the GPS124 provides data output conforming to IEC61162-1 or the NMEA0183 format,
and it can be connected to various marine equipment such as radars, fish finders, and plotters.
1.2 Features
•SBAS function
The GPS124 can implement DGPS measurement by receiving the correction data from SBAS
satellite (WAAS/EGNOS/MSAS), and can achieve the measurement of high accuracy than the
GPS measurement.
•RAIM function
The accuracy of position fixes is self-tested by the equipment. (RAIM function)
This function assures higher reliability to the position fix than conventional method.
•Twelve-channel, twelve-satellite tracking, and all in view
Highly accurate position fixing is ensured by simultaneous tracking of up to twelve satellites by
twelve channels.
•Built-In DGPS function
Simultaneous using the external beacon receiver provides DGPS position fixing, and high
accuracy can be measured by the GPS measurement.
•Switching between IEC61162-1 (NMEA 0183 version 2.3)，NMEA0183 versions 1.5 and 2.1
The data output conforms to IEC61162-1 or NMEA 0183, and version switching is possible.
This feature allows the unit to be connected with various types of marine equipment including
radars, fish finders, and plotters.
1.3 Items Supplied
Table 1-1 indicates a listing of items that are included with your GPS124.
Table 1-1 Components of the GPS124
No. Name Model Name Quantity Notes
1 GPS Receiver JLR-4340 1 Including 10m (33ft) cable with
connector
2 Instruction Manual 1 Code: 7ZPNA4008
3
Warranty Card
Europe
North America
Asia/Oceania
1
1
1
Code: 7ZPBS2901C
Code: 7ZPBS2902E
Code: 7ZPBS2903C

- 3 -
SECTION 2 PARTS AND FUNCTIONS
１
２
３
４
６
５
MASS：less than 0.7kg
CABLE LENGTH: 10m
(
33ft
)
MOUNTING SCREW
１INCH 14 UNS-2B
DGPS Input (Brown)
0VDC (Black)
Data Common (White, Blue)
Data Output
(Green)
Set Data Input
(Yellow)
12VDC / 24VDC (Red)
① RECEIVER: Receives GPS signals from up to twelve satellites and provides highly accurate position
fixing.
② CABLE: Supplies DC power for the antenna and inputs/outputs data to a navigation equipment.
8-wire cable
③ BASE: Mount unit which conforms to 1"×14 NPT standards. With this, the Receiver can
be installed onto a 1-inch antenna mount or extension mast.
④ CONNECTOR: Hooks up the receiver to a navigation equipment. 6-pin
Fig. 2-2 connecter
① RECEIVER
② CABLE
④ CONNECTOR
③ BASE
Fig. 2-1 Parts of GPS124

- 4 -
SECTION 3 INSTALLATION
3.1 Unpacking and Checking
Take out the GPS124 from the packing case carefully.
Check each item listed in Table 1-1 is contained in the case.
Save the case and the packing material until the equipment will be installed successfully.
In case the equipment is to be returned, kindly use the kept packing material.
3.2 Locating the Position for Installation
Do not install the cable with tight bending, hard twist, kink, tension or strain.
These deeds give the cable exterior and / or interior damage.
Do not install this equipment in the place where an excessive vibration and a
shock otherwise it will cause defective reception of GPS signals.
Do not paint the outer cover of GPS124, receiver.
Painting may cause poor receiving.
Install the GPS124 where there is no obstacle, in order to ensure that GPS
signals can be directly received from satellites without interference or
reflection of signals from surrounding structures.
Determine the best location that meets as many criteria as possible
mentioned hereof.
If it is difficult to find an ideal site, select a place temporarily and install the equipment.
Conduct a test to make sure that the proper performance can be obtained and then fix the
equipment in position. A poor location could result in intermittent reception, which reduces the
time of the position fix and therefore, its accuracy.
1. An open space, which allows uniform reception of satellite signals
2. Far away from any high power transmission antennas
3. Outside radar beams
4. Away from the INMARSAT antenna by not less than 5 meters and outside the
INMARSAT beam
5. Away from the antenna of a VHF transmitter and a direction finder by not
less than 3 meters
6. Away from a Magnetic Compass by not less than 1 meter
CAUTION

- 5 -
3.3 Installation Procedure
The base of the GPS124 is designed so that it can be installed on the navigation antenna mount unit
or on an extension mast that conforms to 1” x 14 NPT standards. The bottom of the receiver is
provided with a slot to allow the receiver cable to be pulled out to the side. This eliminates the need
of pulling the cable through the center of an extension mast. If the cable is fed through the center
of a mast, the cable connector will have to be removed.
Caution:
When turning the receiver, be careful not to damage the cable and the plastic top cover of the
receiver. (See Figure. 3-1.)
When the cable is fed internally through the extension mast, it is recommended that RTV silicon
sealant be used to seal off the cable slot on the bottom of the receiver as a protection from the
environment. If the cable is laid sideway through the slot, secure it in position to reduce the
damage by vibration. Then seal the slot on the receiver bottom with the RTV silicon sealant.
(See figure.3-2)
3.4 Cable connection
3.4.1 Connection to Navigation Equipment that can be connected directly
CAUTION
When you connect the GPS124 to the navigation equipment that is possible
to connect directly, confirm the type of connector and pin arrangement
beforehand. If the possibility of direct connection with GPS124 is not
described in the manual of the navigation equipment, confirm the all pin
assignment. Incorrect pin connection may cause a damage of the equipment.
Cable tie or
Tape Cable
Seal with
RTV
Do not turn and grip the
cover
Grip the base to turn
Fig.3-1 Installation Fig. 3-2 Appearance

- 6 -
When the GPS124 is connected to directly connectable GPS navigation equipment, 12 VDC is supplied
from the equipment to the GPS124. In this case, connect the 6-pin connector to the plug where the
GPS label is attached on the rear panel of the equipment.
3.4.2 Connection to Navigation equipment that cannot be connected directly
CAUTION
Connect it taking care about the polarity of the power supply.
The faulty wiring might damage the GPS124.
GPS 124 is designed for the power supply of 12/24VDC.
If the power supply of over 40V is fed to the equipment,
It might be damaged.
Normally, the 12/24VDC power is supplied out of the DC power switchboard or main battery.
As the normal current of the equipment is approximately 0.1A, it is recommended using a fuse not
exceeding 2A in the power line.
When the initialization is not provided, leave pin 5 open.
When the DGPS correction data is not applied, pin 6 open.
Fig. 3.3 shows the connection for NMEA 0183 data output with the equipment that cannot be
connected directly.
3.4.3 Extend to cable
Fig. 3-3 Indirectly connectable Navigation Equipment
1 12VDC/24VDC (Red)
３ Data Common (White)
４ Data Output (Green)
５ Set Data Input (Yellow)
６ DGPS Input (Brown)
７ DGPS Common (Blue)
８ NC (Orange)
２ 0VDC (Black/Shield)
2 3 4 5 6 7 81
CB
Circuit Breaker
12VDC/24VDC
Battery
－＋
Waterproof treatment is required.
Refer to "Attention : Protection of connector against water"
on the next page please waterproof treatment.
Extension cable/CFQ-9000 (up to 15m)

- 7 -
Attention : Protection of connector against water
Display side
<Start of Self-bonding tape wrapping>
Connector (Plug) or Tube
<End of Self-bonding tape wrapping>
Sensor side
Self-bonding tape
Take a proper length of tape off the role.
While pulling in accordance with tape
manual, wrap it around the connector
with one half of it overlapped so that the
wrapped tape may form three layers.
However, portions between the
connector and cable have different
diameters. This portion apply tape more
than the other portions.
When the tape has been wrapped, press
to hold by hand.
Protective PVC tape (vinyl tape)
Taking care not to give tension to the
tape,
wrap the tape around the connector with
one
half of it overlapped so that the wrapped
tape
may form three layers.
<End of vinyl tape wrapping>
10mm or more
<Start of vinyl tape wrapping>
25mm or more
25mm or more
10mm or more
Connector (Socket) or Tube
Connector (Plug)
Connector (Socket)
3.5 NMEA Version Switching
The GPS124 has the function to switch the NMEA output versions 1.5, 2.1, and 2.3.
When the equipment is shipped from the factory, the NMEA output version is set to the version 1.5.
If you want to change the version to 2.1 or 2.3, please carry out the following procedure:
1. Connect pin 4 and pin 5 of the connector.
2. Turn on the GPS124 and wait for more than 30 seconds.
3. Turn off the GPS124 and open the connection between pin 4 and pin 5.
(NMEA 0183 data version is switched to 1.5, 2.1, and 2.3 sequentially.)

- 8 -
SECTION 4 AFTER-SALES SERVICE
If the GPS124 appears to be defective, check the connection again. If the equipment still
appears faulty after that, stop using the equipment and contact our representative or our sales
office directly.
During the warranty period, JRC representative or our company replaces your GPS124 sensor
free of charge. This warranty does not cover damage, which has occurred in transit, or results
from alteration, accident, misuse or abuse.
JRC needs to have the following information:
•Product name, model name, serial number, and purchase date
•Detailed failure conditions
•Name of the company/organization, address, and telephone number
•Contact name
For further information on after-sales service, please contact JRC representative,
JRC branch office or sales office. For details, see "Place of Contact" (page 8).
SECTION 5 DISPOSAL
Disposal of the GPS124
The GPS124 contains a lithium battery for memory backup.
Observe all the laws and regulations concerned when you dispose of the GPS receiver.
WARNING
Do not remove the cover of the GPS124 otherwise it may cause fire, electric
shock, and malfunction. It may also cause poor waterproofing.
WARNING
Do not throw lithium battery into the fire and overheat it. It may cause an
explosion and ignition.

- 9 -
SECTION 6 SPECIFICATIONS
Receiver type: Multichannel (12CH, SBAS 1CH) all in view
Accuracy: 13m 2DRMS (C/A code, HDOP≦4, SA off)
7m 2DRMS (SBAS corrected)
0.1knots RMS (steady state)
Geodetic datum: 46 (selectable, default*: WGS-84)
Data input: Initial input,
GPS correction data (RTCM SC-104 ver.2.0, Type 1,2,7,9)
Data output: IEC61162-1 or NMEA0183 compliance
(selectable, default*: NMEA0183 ver.1.5)
IEC61162-1 (NMEA0183 ver.2.3)
GGA, RMC, VTG, ZDA, DTM, GBS, GNS
NMEA0183 ver.2.1 GGA, RMC, GLL, VTG, DTM
NMEA0183 ver.1.5 GGA, RMC, GLL, VTG
Operating temperature: -25℃ to +70℃
Storage temperature: -40℃ to +85℃
Vibration: IEC60945 compliance
Waterproof: IEC60945/USCG CFR-46 compliance
EMC: IEC60945 compliance
Input voltage: 12/24VDC +30%, -10%
Power consumption: Less than 1.5W
Dimensions, Mass: 108H×108φ(mm), less than 0.7kg
* When the Lithium battery runs out, the settings are restored to the default values. In addition, it will take about a
minute for position fix. The battery life expires in about 10 years under the normal use condition, but it may differ
depending on the environment or use conditions.

- 10 -
电子信息产品有害物资申明
日本无线株式会社
Declaration on toxic & hazardous substances or elements
of Electronic Information Products
Japan Radio Company Limited
RE: 中华人民共和国电子信息产品污染控制管理办法
Management Methods on Control of Pollution from Electronics Information Products of the People's Republic of China
形式名(Type): JLR-4340 名称
(
Name
)
: GPS Senso
r
铅 汞 镉 六价铬 多溴联苯 多溴二苯醚
(Pb) (Hg) (Cd) (Cr6+)(PBB) (PBDE)
GPS接收器
(Antenna) ×○××××
船内装置(Inboard Unit)
・显示装置(Display Unit)
・信号处理装置
(Processing Unit)
－－－－－－
外部设备(Peripherals)
・选择(Options)
・电线类(Cables)
・手册(Documennts )
×○××××
○：表示该有毒有害物质在该部件所有均质材料中的含量均在SJ/T11363-2006 标准规定的限量要求以下。
(Indicates that this toxic, or hazardous substance contained in all of the homogeneous materials for this part is below the requirement in
SJ/T11363-2006.)
×：表示该有毒有害物质至少在该部件的某一均质材料中的含量超出SJ/T11363-2006 标准规定的限量要求。
(Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used for this part is above
the limit requirement in SJ/T 11363-2006.)
有毒有害物质或元素的名称及含量
(Names & Content of toxic and hazardous substances or elements）
部件名称
(P art name)
有毒有害物质或元素
(Toxic and Hazardous Substances and Elements)