CalAmp Wireless Networks GPDB Gemini/PD User Manual Gemini PD Technical Manual

Download:
Mirror Download [FCC.gov]
Document ID	92321
Application ID	YdlvaaxLxijJHHB5i2CNgQ==
Document Description	Installation Guide 1 01
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	15.42kB (192742 bits)
Date Submitted	2000-03-20 00:00:00
Date Available	2000-06-12 00:00:00
Creation Date	2000-03-20 16:34:57
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2000-03-20 16:35:49
Document Title	Gemini/PD Technical Manual
Document Creator	Microsoft Word 8.0
Document Author:	Michel Martin

GeminiPD
Mobile Radiomodem
Installation Guide
Version 1.10
The entire contents of this manual and the Radio Installation Software
described in this manual are copyright 2000 by DATARADIO Inc.
Copyright DATARADIO Inc.
March 2000
Part no.: 120 20110-110
Table of Contents
1.
PRODUCT OVERVIEW................................................................................................................................... 1
1.1 INTENDED AUDIENCE ....................................................................................................................................... 1
1.2 GENERAL DESCRIPTION .................................................................................................................................... 1
1.2.1 Features: ................................................................................................................................................. 1
1.2.2 Configuration .......................................................................................................................................... 1
1.3 FACTORY TECHNICAL SUPPORT ........................................................................................................................ 2
1.4 PRODUCT WARRANTY ...................................................................................................................................... 2
1.5 REPLACEMENT PARTS....................................................................................................................................... 2
1.5.1 Factory Repair ........................................................................................................................................ 2
1.6 UNPACKING ...................................................................................................................................................... 2
2.
INSTALLATION ............................................................................................................................................... 3
2.1 PLANNING THE INSTALLATION .......................................................................................................................... 3
2.1.1 Overview ................................................................................................................................................. 3
2.1.2 Location .................................................................................................................................................. 3
2.1.3 Cable Path............................................................................................................................................... 3
2.2 WARNINGS........................................................................................................................................................ 3
2.2.1 RF Radiation warning............................................................................................................................. 3
2.2.2 Interference with vehicular electronics ................................................................................................... 3
2.2.3 Secure mounting...................................................................................................................................... 4
2.2.4 Explosive environments........................................................................................................................... 4
2.2.5 Installation in vehicles powered by liquefied gas. .................................................................................. 4
2.3 PHYSICAL UNIT................................................................................................................................................. 4
2.3.1 Recommended tools and supplies............................................................................................................ 4
2.3.2 Physical mounting of GeminiPD ............................................................................................................... 4
2.4 ELECTRICAL INSTALLATION .............................................................................................................................. 5
2.4.1 Electrical requirements ........................................................................................................................... 5
2.4.2 Routing of power cable ........................................................................................................................... 5
2.5 ANTENNA ......................................................................................................................................................... 7
2.5.1 Recommended tools and supplies............................................................................................................ 7
2.5.2 Planning .................................................................................................................................................. 7
2.5.3 Antenna Installation ................................................................................................................................ 8
2.6 COMPLETING THE PHYSICAL INSTALLATION...................................................................................................... 8
2.7 CHECKING OUT NORMAL OPERATION................................................................................................................ 8
3.
OPERATING DESCRIPTION ......................................................................................................................... 9
3.1 FRONT & REAR PANELS ................................................................................................................................... 9
3.2 DTE PORT INTERFACE ................................................................................................................................... 10
3.2.1 RS-232 Interface Signal Levels ............................................................................................................. 10
4.
RIS PROGRAM ............................................................................................................................................... 11
4.1 OPERATION ..................................................................................................................................................... 11
4.2 TO CONNECT AND START RIS ......................................................................................................................... 11
4.3 WINDOW ......................................................................................................................................................... 12
4.4 FUNCTIONS ..................................................................................................................................................... 12
4.4.1 Configuration to a file........................................................................................................................... 12
4.4.1.1
4.4.1.2
4.4.2
Configuration from a File ..................................................................................................................... 13
4.4.2.1
4.4.2.2
4.4.3
“Get” button ..................................................................................................................................................13
“Get As” button .............................................................................................................................................13
“Put From” button .........................................................................................................................................13
“Station Reset” button ...................................................................................................................................13
Special Functions.................................................................................................................................. 14
4.4.3.1
4.4.3.2
4.4.3.3
4.4.4
Banner Field and “i” button ..........................................................................................................................14
Comments......................................................................................................................................................14
Password .......................................................................................................................................................14
Test Functions ....................................................................................................................................... 15
4.4.4.1
Channel Selection..........................................................................................................................................15
4.4.4.2
RSSI Indicator...............................................................................................................................................15
4.4.4.3
TXON tests....................................................................................................................................................15
4.4.4.3.1 Unmodulated Carrier ................................................................................................................................15
4.4.4.3.2 Modulated Carrier ....................................................................................................................................15
4.4.4.4
Ping Button ...................................................................................................................................................16
4.4.4.5
Ping addresses ...............................................................................................................................................16
5.
TROUBLE-SHOOTING AND TESTING ..................................................................................................... 17
5.1 EQUIPMENT REQUIRED ................................................................................................................................... 17
5.2 BASIC TESTS ................................................................................................................................................... 17
5.3 GPS TEST ....................................................................................................................................................... 17
6.
SPECIFICATIONS .......................................................................................................................................... 19
FIGURE 1 - MOUNTING PLATE AND SLOT DIMENSIONS .................................................................................................... 5
FIGURE 2 - BRACKET INSTALLATION .............................................................................................................................. 5
FIGURE 3- DC POWER CONNECTOR ............................................................................................................................... 6
FIGURE 4 - FRONT AND REAR PANELS ............................................................................................................................ 9
FIGURE 5 - RIS WINDOW.............................................................................................................................................. 12
TABLE 1 - GEMINIPD LEDS INDICATIONS ..................................................................................................................... 10
TABLE 2 - RS-232 SIGNAL LEVELS .............................................................................................................................. 10
TABLE 3 - CARRIER MODULATION ............................................................................................................................... 15
TABLE 4 - TESTS, FULL & HALF CHANNEL UNITS ....................................................................................................... 18
120 20110-100
ii
GeminiPD Installation Guide
What's New in Version 1.0
History
March 2000
Version 1.10 Addition of 800MHz specifications, revision to paragraph
2.2.1 - RF Radiation Warning and to paragraphs 2.5 through 2.5.3. –
Antenna installation.
January 2000
Version 1.0: First released version
120 20110-100
iii
GeminiPD Installation Guide
Definitions
The following terms are used throughout this document.
Item
DCE
DTE
GCU
GeminiPD
HDX
RS-232
RIS
Simplex
120 20110-100
Definition
Data Communications Equipment. This designation defines the direction (input
or output) of the various RS-232 interface signals. Modems are always wired as
DCE.
Data Terminal Equipment. This designation defines the direction (input or output) of the various RS-232 interface signals. Most user equipment, as well as
PCs, are wired as DTE.
GeminiPD Control Unit board
High specs mobile radiomodem. PD = Parallel decode
Half Duplex. A unit that uses separate transmit and receive frequencies, but
which may not transmit and receive simultaneously.
Industry–standard interface for data transfer.
Radio Installation Software. This software allows basic tests and unit configuration.
A unit which uses the same frequency for transmit and receive.
iv
GeminiPD Installation Guide
1. PRODUCT OVERVIEW
1.2.1 Features:
This document provides the information
required for the installation, operation and
verification of the DATARADIO GeminiPD
mobile radiomodem.
•
One-piece integrated design in a rugged
die-cast aluminum chassis.
•
Parallel Decode (PD) technology featuring dual receivers for added decode
sensitivity in multi-path and fading environments.
This document is designed for use by engineering design, installation, and maintenance personnel.
•
Sophisticated DSP-based modem design
provides added system performance,
fewer retries and more effective
throughput.
1.2
•
Automatic channel changing for improved roaming capabilities.
•
Built–in 16-channel synthesized radio
transceiver.
•
Power output of 10W to 40W (software
controlled).
•
Data speeds of 9600 to 19200 b/s
(9600 b/s maximum in half channels)
•
3 available user ports using standard
RS-232 interface
•
Half-duplex or simplex operation.
•
Built-in GPS receiver.
•
Out-of-band signaling enables transmission of GPS reports with no effect on
system performance.
•
Back-compatible with MobilPac/R
1.1
Intended Audience
General Description
PD
Gemini is a mobile radiomodem aimed at
the public safety and public utility markets to
meet demand for high speed and high
throughput. It integrates all the necessary
hardware for data-only vehicular installations
up to but not including the laptop PC and its
application software.
Example of applications are:
1. Database inquiry systems.
Small number of brief messages, (usually from the mobile station) with fairly
long responses.
2. Computer-aided dispatch (CAD).
Large number of messages, (usually
from the base station) with very brief
responses.
3. Automatic Vehicle Location (AVL).
Using built-in GPS receiver, determines
position, speed and direction of fleet
members.
1.2.2 Configuration
GeminiPD is factory configured based on
each customer network system requirements, usually by Dataradio System Engineering. Configuration is not changeable in
the field without notifying Dataradio.
The GeminiPD is made-up of a main
transceiver and an auxiliary receiver for
Parallel Decode (PD), a 40-Watt power
amplifier (35-Watt for 800 MHz model), a
Gemini Control Unit (GCU) with DSP driven
modem and an integrated OEM GPS
receiver.
120 20110-100
Gemini/PD Installation Guide
1.3
Factory Technical
Support
1.5
This product is not field serviceable, except
by the replacement of a complete unit. Specialized equipment and training is required
to repair the GCU board and radio modules.
The Technical Support departments of
DATARADIO provide customer assistance on
technical problems and serve as an interface
with factory repair facilities. They can be
reached in the following ways:
Contact Technical Support for service information before returning equipment. A
Technical Support representative may suggest a solution eliminating the need to return
equipment.
DATARADIO Inc.
5500 Royalmount Ave, suite 200
Town of Mount Royal
Quebec, Canada H4P 1H7
1.5.1 Factory Repair
Technical support hours: Monday to Friday
9:00 AM to 5:00 PM, Eastern Time
When returning equipment for repair, you
must request an RMA (Returned Material
Authorization) number. The Tech Support
representative will ask you several questions
to clearly identify the problem. Please give
the representative the name of a contact person who is familiar with the problem,
should questions arise during servicing of
the unit.
phone: +1 514 737-0020
fax:
+1 514 737-7883
Email address: support@dataradio.com
or
DATARADIO Corp.
6160 Peachtree Dunwoody RD., suite C-200
Atlanta, Georgia 30328
Customers are responsible for shipping
charges for returned units. Units in warranty
will be repaired free of charge unless there
is evidence of abuse or damage beyond the
terms of the warranty. Units out of warranty
will be subject to service charges. Information about these charges is available from
Technical Support.
Technical support hours: Monday to Friday
8:30 AM to 5:30 PM, Eastern Time
phone: 1 770 392-0002
fax:
1 770 392-9199
Email address: drctech@dataradio.com
1.4
Replacement Parts
Product Warranty
Warranty information may be obtained by
contacting your sales representative.
1.6
Unpacking
When ready for installation, carefully unpack your GeminiPD kit (p/n 023 6000-001)
shipping carton and identify each item as
listed below:
• One GeminiPD
• Installation mounting bracket
• Power cable – 22 feet (6.7 meters)
• Small parts kit
If damage has occurred to the equipment
during shipment, file a claim with the carrier
immediately.
120 20110-100
Gemini/PD Installation Guide
ignition circuits to help prevent interference
between these components and radio
equipment.
Try using existing holes in firewall and
trunk wall and the channels above and below or beneath the doors, channels through
doors and window columns that are convenient to run cables and wires.
Whenever possible, install conduit in which
to run the cables.
2. Installation
2.1
Planning the
Installation
2.1.1 Overview
To ensure trouble-free, efficient installation,
start by inspecting the vehicle to determine
the optimum position for GeminiPD and its
antennas as well as the routing of all associated cabling and wiring.
2.2
Before starting installation, review all of the
following warnings.
2.1.2 Location
Often, installations in cars are done in the
trunk, underneath the back window ledge or
on the trunk floor. In vans and small trucks,
it is usually done in the back of the vehicle.
In large vehicles, it is often done in the front
cabin.
2.2.1 RF Radiation warning
The Federal Communications Commission
(FCC), with its action in the General
Docket, 79-144, March 13, 1985, has
adopted a safety standard for the human exposure to radio frequency electromagnetic
energy emitted by FCC-regulated equipment. Only proper installation of the transceiver antenna of GeminiPD as summarized
in paragraph 2.5 through 2.5.3 will result in
user exposure substantially below the FCC
recommended limits.
Be sure to place the GeminiPD unit in such a
way that:
• The LEDs can be seen (as an aid in
troubleshooting)
• Access to the antenna DE-9 connectors
is possible without removing the unit
• Sufficient air may flow around the unit
to provide adequate cooling
Antennas installation must be done by qualified personnel. See paragraph 2.5 for recommended antenna positioning.
GeminiPD is not fully waterproof, therefore
it should be mounted sufficiently away from
an opened trunk lid or opened tailgate, windows or doors to avoid exposure to rain
and/or snow. It also minimizes the chance
that material can be accidentally thrown on
the unit or of someone bumping against it.
Transmissions when persons or animals outside the vehicle are within two feet of the
antenna may result in radio energy radiation
burns or related injuries.
2.2.2 Interference with vehicular
electronics
2.1.3 Cable Path
Try to route the cables away from locations
where they would be exposed to heat (exhaust pipes, mufflers, tailpipes, etc.), battery
acid, sharp edges, mechanical damage or
where they would be a nuisance to automobile mechanics, the driver or the passengers.
Keep wiring away from automotive computer modules, other electronic modules and
120 20110-100
Warnings
Certain vehicle electronic devices may be
prone to malfunction due to lack of protection from radio frequency energy present
when transmitting.
It includes, and is not limited to:
Electronic fuel injection systems
Electronic anti-skid braking systems
Electronic cruise control systems
Gemini/PD Installation Guide
Space containing radio equipment shall
be isolated by a seal from the space
containing the LP-gas container and its
fittings.
Outside filling connections shall be used
for the LP-gas container.
The LP-gas container space shall be vented
to the outside of the vehicle.
If the installation vehicle contains such
equipment, consult the dealer for the make
of vehicle and enlist his aid in determining
if such electronic circuits will perform normally when the radio is transmitting.
2.2.3 Secure mounting
For vehicle occupant(s) safety, mount
GeminiPD securely so that the unit will not
break loose in case of an accident or violent
maneuvers.
2.3
2.3.1 Recommended tools and
supplies
2.2.4 Explosive environments
•
•
•
•
Operation of vehicular radio transmitters in
explosive environments may be hazardous
and conventional safety precautions must
prevail. These include and are not limited
to:
Transmitting while fuelling the vehicle.
Do not carry fuel containers in the same
compartment as GeminiPD.
Dynamite blasting caps may explode
when transmitting radio operation takes
place within 500 feet. Always obey the
“Turn Off Two-Way Radios” signs
posted at sites where dynamite is being
used.
If transporting blasting caps:
a) Carry the blasting caps in an appropriate
metal container having a soft cushioning
lining.
b) Suppress transmissions whenever the
blasting caps container is being loaded
or unloaded into or from the vehicle.
Check applicable local bylaws.
•
Electric drill for mounting holes
Hammer and center punch
Tie-wraps
Drills and circle cutters as needed according the size of screws (or nuts and
bolts) used.
In-line “Power meter” capable of measuring forward and reflected power at the
operating frequency of the radio.
2.3.2 Physical mounting of
GeminiPD
Start by running all the cables (DC power,
PC RS-232 as well as all antennas cabling)
prior to mounting GeminiPD to assure the
feasibility of the planned cable routing. Be
sure to leave sufficient slack in each cable
so the GeminiPD may be removed from the
mounting bracket for servicing with the
power applied and the antenna attached.
GeminiPD is ready for installation.
Cautions:
• When drilling mounting
holes, be careful to avoid damaging some vital part of the vehicle such as fuel tanks, transmission housing etc. Always
check how far the mounting
screws extend below the
mounting surface prior to installation.
• Use of drill bit stops is
highly recommended.
2.2.5 Installation in vehicles
powered by liquefied gas.
GeminiPD installations in vehicles powered
by liquefied petroleum gas with the LP-gas
container in the trunk or other sealed-off
space within the interior of the vehicle must
conform to the National Fire Protection Association Standard NFPA 58 which requires:
120 20110-100
Physical Unit
Gemini/PD Installation Guide
• After drilling, remove all
metal shavings before installing
screws.
• Do not overtighten selftapping screws.
1. Once you have found a suitable mounting position for GeminiPD, hold the unit
and the unattached mounting bracket in
the proposed mounting position and
check that there is clearance behind the
unit for the heatsink, cables, etc. Check
that the position provides a large enough
flat surface that the bracket will not be
distorted when installed.
6. Securely mount GeminiPD to the installed bracket using the four supplied
8x40 black machine screws.
7. Drill any additional holes as required
for routing all cables and fit holes with
suitable grommets or bushings
whenever required.
2.4
2.4.1 Electrical requirements
GeminiPD is designed to operate from a
13.8Vdc nominal car battery (negative
ground) and requires currents up to 15.0A. It
will tolerate a supply voltage range of 10.9
volts to 16.3 volts.
In vehicles with a 24 VDC electrical system
(mostly in trucks), it is essential to provide a
suitably rated 24/12 VDC converter to isolate the unit from the battery and protect it
against excessive voltage.
0.2"
1.0"
2.5"
6.0"
Figure 1 - Mounting plate and slot dimensions
Warnings:
Application of more than 16.3 VDC
will damage GeminiPD and is not
covered by the warranty.
Always disconnect GeminiPD’s DC
power lead before connecting a
second battery, using power from
another vehicle or power boosting
(e.g. when “jump starting” the vehicle).
2. Using the installation bracket as a template, mark the four locations for drilling (see Figure 1). Again, ensure that
drilling at the selected points is safe and
will not cause damage.
3. Indent the drilling positions with a center punch.
4. Drill holes sized for the self-tapping
screws or for the nuts, bolts and lock
washers used.
Caution: Slightly reduce the size of the
drilled holes when using self-tapping
screws in thin metal.
2.4.2 Routing of power cable
1. Start by disconnecting the vehicle’s
battery unless specifically prohibited
from doing so by the customer, vehicle
manufacturer, agent or supplier.
Note:
In this event, exercise extreme caution throughout
the installation and fit the
fuse only when the installation is complete.
2. The 22 feet (6.7 meters) long power
cable consists of three wires attached to
Figure 2 - Bracket installation
5. Install the bracket without distorting.
120 20110-100
Electrical installation
Gemini/PD Installation Guide
6. Repeat the step above for connecting the
red DC power lead.
7. Attach the negative wire at the battery
ground and the positive lead at the battery positive. Ensure tight and secure
connections.
8. Fasten the fuse holder and leads.
9. Carefully route the A wire to where the
connection will be made for switch
sensing.
• Connect to “Ignition” if you wish to
have GeminiPD turning ON and OFF
dependent on the vehicle’s ignition
key.
• Connect to “Accessory” if you wish
GeminiPD to be available when the
engine is not running, but still dependent on the ignition key.
• Connect to a user-supplied control
switch.
• In installations equipped with a
“ChargeGuard”, connect to the
controlled-side of the ChargeGuard
(remembering that the DC Power
lead must NOT be switched).
10. Make appropriate connections.
Cautions:
Where scraping to bare metal was
required, and at the battery posts
where wire ends and lugs may be
exposed, apply anti-corrosion compound.
a Packard Electric “Weather-Pack” connector (DC power Connector).
The DC Power connector has:
•
•
•
At position “A”, the smaller red
switch-sense wire (commonly to ignition)
At position “B”, the blue ground wire
At position “C”, a larger red B+ DC
power wire (MUST be unswitched)
13.8VDC B+
(Fused Red wire)
GROUND
(Blue wire)
SEAL
(DO NOT REMOVE)
IGNITION
(Small red wire)
Figure 3- DC Power Connector
3. Place this connector at GeminiPD’s radio
power input location. Do not connect at
this time. See paragraph 2.6 “Completing physical installation”.
4. Carefully route both the B and the C
wires to where the in-line fuse holder
will be installed, usually as close to the
vehicle’s battery as practicable. Ensure
that leads do not chafe on any metal
part(s). Secure the wires at several locations along their length.
Caution:
Use proper crimping tool.
Common pliers are NOT
acceptable.
Insert the fuse only when installation is complete and ready to test.
11. At the GeminiPD position, neatly coil
cable slack and attach securely.
Warning:
The DC Power lead must be
unswitched
5. Insert the negative (blue) lead into one
of the appropriate connector lug and
crimp solidly to force the metal contacts
onto the wires.
120 20110-100
Gemini/PD Installation Guide
2.5
Antenna
For ground-plane dependent antennas –
the center of metal surface is preferable for
best omni-directional pattern.
To meet the FCC’s RF Exposure Guidelines, the main transmitter antenna should
be installed to ensure a minimum distance
between the body of the user or nearby persons and the antenna. To determine the
minimum distance, calculate the antenna
gain less cable loss and refer to the graph
below to identify the required minimum
separation distance.
For ground-plane independent antennas –
installation may be close to the edges of the
surface.
Follow spacing for TX antenna. Install the
antennas in one of the following positions:
2.5.1 Recommended tools and
supplies
•
•
•
•
Most preferred for all antennas: centerline of roof. For transmitter antenna, it
is the ONLY acceptable position.
- Less preferred for receiver antenna:
trunk lid, providing distance to transmitting antenna is respected whether lid
is opened or closed.
- Much less preferred, but permissible for
receiver antenna: left or right rear fenders, just in back of rear window
- Least preferred, but permissible for receiver antenna: left or right front fenders, ahead of windshield
Note:
Proximity to other vehicle-mounted
antennas may cause mutual interference especially at higher frequencies.
circle cutter
hole saw or
socket punch for antenna
Mini-UHF Crimp tool
2.5.2 Planning
GeminiPD commonly uses three separate antennas:
• Main transceiver – constraints are MPE
limits and omni-directional factors
• Auxiliary receiver – constraints are diversity spacing and omni-directional requirements
• GPS – constraints are TX spacing and
clear sky view.
Overall gain (dB)
(ant. gain -cable loss)
Max G(dB) vs distance to accomplish MPE limits
10
-2
-4
-6
-8
-10
800 MHz
400 MHz(UHF)
20 30 40 50 60 70 80 90 100
7.9 11.8 15.7 19.7 23.6 27.6 31.5 35.4 39.4
distance to Tx antenna (cm/in)
120 20110-100
Gemini/PD Installation Guide
the auxiliary plug with the transceiver
plug.
The auxiliary receiver antenna must be installed at least 5/8 λ distant from the transceiver antenna.
2.6
The GPS antenna placement requires a
fairly unobstructed view of the sky. It must
also be at least two feet distant from the
transceiver antenna but it may be close to
the auxiliary RX antenna.
Completing the physical
Installation.
To complete the physical installation and
prior to testing GeminiPD:
•
For the optimum antenna spacing at the frequency you are using, consult system engineering.
•
•
Connect DC Power cable’s connector to
GeminiPD’s until you hear a click as the
two parts snap together.
Re-check that all other connections are
secure (antennas, PC, etc.)
Switch vehicle ignition ON.
2.5.3 Antenna Installation
You are now ready to check for normal operation and to run the Radio Installation
Software (RIS) program for testing or trouble-shooting.
1. Route good quality 50-ohm coaxial cables (e.g. RG-223) from each of the selected antenna positions to the position
where the GeminiPD unit is mounted.
2. Terminate the end at each of the antenna
positions with the appropriate connector
for the antenna used and make the connection.
3. At the GeminiPD position, cut the three
cables to length and terminate with the
appropriate plug. For the transceiver
and the auxiliary cables, use a MiniUHF crimp plug using an appropriate
crimping tool. For the GPS, use a SMA
connector.
4. Positively identify the transceiver miniUHF plug and connect to the left rear of
GeminiPD.
5. Positively identify the auxiliary receiver
mini-UHF plug and connect to the front
left of GeminiPD to the RX position.
6. Connect the SMA connector to the GPS
position below the auxiliary connector
position.
7. Do not skip this last step, trust us; it is
an important one. To complete the installation, tie-wrap together the auxiliary and the GPS antenna cables at a
point about two inches in front of the
unit. It will be much easier hereafter to
correctly identify which mini-UHF plug
goes where. You DO NOT want to cross
120 20110-100
2.7
Checking out Normal
operation
Check that the vehicle ignition is ON.
1- Check for proper operation of the
GeminiPD’s LEDs as per Table 1 in section 3.1.
2- Using the RIS program (described in
section 4), and an in-line wattmeter,
check forward & reverse power to confirm main antenna installation.
3- Using the RIS, check the RF link with a
base station that can be heard by using
the RIS “Ping” feature.
See paragraph 4.4.4.4
or
If user application and its base station
are available, test the installation by
going through a normal sequence of
transmitting and receiving messages.
Gemini/PD Installation Guide
3. Operating Description
3.1
Front & Rear Panels
The front panel includes:
•
One mini-UHF type female antenna connector for the auxiliary receiver
•
One SMA type female connector for the GPS receiver
•
Two LED indicators
• Three DE-9F RS232 ports
The rear panel includes:
•
One mini-UHF type female antenna connector for the main transceiver
•
One 3-pin pigtailed DC Power connector with ignition sense
Gemini/PD
RX
PWR
PGM
RX
TX
PC/SETUP
2.000"
®
GPS
DEV-3
DEV-2
DEV-1
6.000"
Figure 4 - Front and rear panels
120 20110-100
Gemini/PD Installation Guide
Table 1 - GeminiPD LEDs indications
GeminiPD LEDs indications
Special
Errors
Normal
Power-on Sequence (LEDs are paired)
PWR
RX / TX
Red
Red
Amber
Off
Indication
Normal boot-up start
(10 to 27 sec.)
Then 8 seconds to
completing boot-up
Normal Operation (LEDs are independent)
PWR
Indication
RX / TX
Green
Normal ready state
Off
Amber
1 Pulse/sec.
Sufficient satellites
acquired by GPS
Green
Receiving packets
“DBA sync” allows
transmit
Receiving packets
“DBA
out-of-sync”
prevents transmit
Green
Off
Normal state
Red
Off
Hardware failure
Amber
Slow
Red/Green
Red
Software failure
(firmware erased)
Red
Fast
Red/Green
Red
Programming in
progress
3.2
No network activity
Transmitting
DTE Port Interface
For all three ports:
DE-9 F
pin #
Indication
We recommend the use of a shielded 9-wire cable with all pins connected. These ports can be
used for unit configuration, maintenance & adjustment as well to connect user applications.
Function
DCD – from GeminiPD, normally
asserted
RXD – data from GeminiPD
TXD – data to GeminiPD
DTR – to GeminiPD, handshaking
Ground
DSR – from GeminiPD, tied to VCC
through current limiting resistor
RTS - to GeminiPD, handshaking
CTS – from GeminiPD, handshaking
AUX auxiliary input to GeminiPD,
“panic line” input (port 3):
It may be activated by dry contact
pull-up to the port’s DSR output. It
may also tolerate user pull-up to
external +12 VDC (car battery), but
an isolated dry contact is preferred
due to the risk of noise-related false
alarms caused by the vehicle’s
electrical system.
120 20110-100
3.2.1 RS-232 Interface Signal Levels
In the descriptions of data signals, the following
conventions are used:
Table 2 - RS-232 Signal Levels
10
Term
Alternates
Signal level
ON
asserted, spacing
+3 to +15 V
OFF
dropped, marking
-3 to -15 V
Gemini/PD Installation Guide
It has the general look and feel of an MSWindows program. Mouse operation is the conventional click, double-click plus click and drag
method. Only left mouse button operation is
supported.
4. RIS program
The Radio Installation Software (RIS) program
is used to:
•
•
•
Check and troubleshoot GeminiPD.
Save an existing configuration.
Upload files for field-configuring units (Requires intervention with technical support).
Any command or selection shown in gray is either unavailable or is awaiting another action
before activating.
Help in the program is available at all points by
pressing the F1 key. If a subject is highlighted,
the help displayed will be context sensitive.
Otherwise, the Index List is displayed.
To run the program, you will need:
A PC or portable computer with a 486 class
CPU or better.
2 free megabytes of RAM.
A hard disk.
An available COM port.
A serial mouse, with its own driver installed
is strongly recommend however most actions can also be done using keyboard
commands.
4.2
1- Connect a suitable 9-conductor straight RS232 cable, between the unit’s front-mounted
PC/Setup port and the RS-232 port of the
PC or portable computer that will be running Gemini.exe program.
GeminiPD’s RIS program is available on diskette,
Dataradio p/n 085 03322-00n. Please refer to the
readme.txt file included on the diskette for
installation instructions.
4.1
2- Check that GeminiPD is ON.
3- To run the Radio Service Software (RIS):
•
In DOS, change to the directory where the
program is installed and type gemini.exe
and press ENTER.
•
In WIN 3.x, click on File, then on Run, type
the path or browse to select, click on OK to
run gemini.exe.
•
In WIN 9x, click on Start, then on Run, type
the path or browse to select, click on OK to
run gemini.exe.
Operation
This support program is DOS-based and can be
run in MS-Windows © MS-DOS mode.
DO NOT have more than one copy of this program loaded at any given time in separate windows. Doing so creates COM port sharing conflicts and failure to run the program alone results in unexpected transmissions.
120 20110-100
To connect and start RIS
11
Gemini/PD Installation Guide
Dataradio Radio Installation Program
Exit
Get
Get As
Put From
Station Reset
Gemini
Banner:
Put Comments
Comments:
Password:
dBm
II
Put Password
Channels
CHAN 1
CHAN 2
CHAN 3
CHAN 4
CHAN 5
CHAN 6
CHAN 7
CHAN 8
CHAN 9
CHAN 10
CHAN 11
CHAN 12
CHAN 13
CHAN 14
CHAN 15
CHAN 16
Show All Channel Frequencies
TXON (Modulated)
Ping Address:
-133
-125
TXON (Unmodulated)
Ping
Figure 5 - RIS window
4.3
Window
4.4
This program uses one main display screen only.
Referring to Figure 5, starting from top and
moving down to the bottom, it has:
•
A Button bar, containing the program’s
five main commands: Exit, Get, Get As,
Put From and Station Reset plus a Product
type field.
•
A Data section, containing the Banner plus
the Comments and Password fields and their
related Put buttons.
•
The RIS program is used to:
• Save an existing configuration from a unit to
a file.
• Take a configuration from a file and upload
it to a unit
• Check GeminiPD
• Test and/or trouble-shoot installations
4.4.1 Configuration to a file
Saving the unit’s configuration to a file allows
the user to:
• Subsequently restore the configuration.
A Channel(s) section, to select and activate
a channel.
•
A Test section, containing the TXON and
Ping buttons and the relevant address fields.
•
An “i” square button, that opens up the
“About” window.
•
A Status bar, for displaying standard usermessages. Other messages appear in dialog
window boxes or in warning windows.
120 20110-100
Functions
•
Safeguard a copy as documentation of the
configuration.
Note: The configuration and status files are
ASCII files and may be e-mailed or faxed to
technical support when requested to do so.
Warning:
Do not make any changes to these files. Any
changes made to the configurations MUST be
done at factory or by Dataradio system
engineering.
12
Gemini/PD Installation Guide
4.4.1.1
“Get” button
Warning:
On the button bar, press the “Get” button to:
Do not make any changes to
these files. Any changes made to
the configurations MUST be
done at factory or by Dataradio
system engineering.
•
Establish linking
•
Download and automatically save the connected unit’s configuration setting to a file
named with the unit' serial number: The RIS
status bar will then report “All parameters
are successfully retrieved and saved in file
[unit' s/n].GM2. Any previous configuration
in the program is overwritten.
4.4.2.1
All test buttons and fields are now activated.
2- In the opened “File, Put From” window,
locate the drive, directory and file name of
the relevant file.
•
1- On the button bar, press the “Put From”
button.
If you do not wish to overwrite an existing configuration or prefer to name the file yourself,
use the “Get As” button.
4.4.1.2
“Put From” button
“Get As” button
On the button bar, press the “Get As” button to:
•
This may be a configuration saved earlier from a unit.
•
It can also be from a Dataradio (factory
or system engineering) diskette.
•
Establish linking
4- Select the appropriate file
•
Open the “File, Save As” window with the
ASCII file *.gm2 (already selected).
5- Press the “OK” button.
•
Save the connected unit’s operating characteristics (configuration setting) to a file, directory or drive of your choice.
The program will ask before overwriting an
existing file.
•
Status bar reports “All parameters are successfully retrieved and saved in [filename].
•
All buttons and fields are now activated.
•
The status bar reports: “[filename] is
downloading into unit” and up to 30
seconds later displays: “All parameters are
saved. Apply Station Reset to take effect!” .
•
All buttons and fields are now activated.
6- Press the “Station Reset” button. See the
next paragraph for details.
4.4.2.2
“Station Reset” button
Press the Station Reset button as a last step after
doing a “Put From”. The Station Reset button
causes downloaded parameters from a file or
diskette to take effect in the connected unit.
4.4.2 Configuration from a File
Loading a configuration from a file to a unit is
useful to:
•
Restore the operating characteristics of a
unit (Requires intervention with technical
support.)
•
Pressing Station Reset is not required after doing any Comments or Password configuration
change as these have their own Put Comments
and Put Password buttons.
Carry out field updates using Dataradio
system engineering supplied diskette(s).
Station Reset does not break the connection.
120 20110-100
13
Gemini/PD Installation Guide
4.4.3 Special Functions
4.4.3.2
The following RIS fields and buttons are used to
gather specific information concerning the connected unit:
1- Type comments directly in the “Comments”
field. These can be text up to 24 characters.
Use this field to enter user-convenient description(s) (customer name, location,
etc…).
•
Banner field
•
“i” button
•
Comments field and Put Comments button
•
Password and Put Password button
4.4.3.1
Comments
2- Press the button “Put Comments” to make
the entry permanent. This field may be left
blank.
On subsequent Get, Get As or Put From, this
field displays entered comments. If no comment
was entered, the field will remain blank.
Banner Field and “i” button
This field displays a string made up of the serial
number of the connected unit followed by the
firmwares used and their version number.
4.4.3.3
Password
The password feature is useful where two (or
more) fleets share the same radio channel. Mobiles without the proper password would still
receive the message but the contents would not
be intelligible.
Format is:
[serial number]:firmware 1 name, its version #,
firmware 2 name, its version #.
The serial number portion uniquely identifies
the unit. It is a variable length, maximum eightcharacter alphabetic string assigned at the time
of manufacture. It is identical to the serial number printed on the label of the unit. This number
cannot be changed and is used as part of the onair protocol.
1- Type your password directly in the “Password” field. It is a string of 32 hexadecimal
characters (exactly).
Gemini/PD's firmwares resides in flash EPROM
and are designed to allow field upgrades.
On subsequent Get, Get As or Put From, this
field will require that the correct password be
entered. If none was entered, the field will remain blank.
2- Press the button “Put Password” to make the
entry permanent. This field may be left
blank.
When contacting your supplier, give the full
banner string and the version of the RIS used.
You will find the version number in the “About”
window. To open it, click the lower left square
button (with a lowercase letter “i” in it).
Password information is NOT retrieved and
saved to a file, along with the configuration.
Clearing a Password is done by entering 32 zeros.
This field is blank prior to doing "Get", "Get As"
or "Put From".
120 20110-100
The Dataradio supplied password algorithm is
designed to thwart the casual observer only. It
provides a limited form of data privacy. Therefore, if your security requirements are high,
Dataradio urges you to use external encryption
technology (such as Data Encryption Standard
(DES)) in the Host and Mobiles computers.
14
Gemini/PD Installation Guide
This indicator functions as a single column
"Power" (Watt) meter when pressing either of
the test buttons: "TXON (Modulated)" or
"TXON (Unmodulated)" with a range of 0 to 60
watts.
Precision is usually better than +/-3 watts.
4.4.4 Test Functions
The following RIS functions and buttons are
used to carry out testing or trouble-shooting on
a connected unit:
•
Channels select
•
Show All Channel Frequencies
•
RSSI Indicator
•
TXON (Modulated)
•
TXON (Unmodulated)
•
Ping Address and Ping button
4.4.4.3
TXON tests
4.4.4.3.1
4.4.4.1
Unmodulated Carrier
Unmodulated carrier gives a clear carrier and is
frequently used for checking:
• Frequency error
• Forward and reverse power
Press the TXON (Unmodulated) button to
transmit an unmodulated test signal on the
channel selected for 30 seconds or until pressed
again.
The time remaining to test transmit is displayed
on the status bar. The functions of all the other
buttons are inoperative during test transmissions.
Channel Selection
Select the radio channel on which you wish to
send a test transmission by clicking the relevant
available option button.
The program automatically detects which of
sixteen channels are present on the connected
unit. For each factory-set channel available, the
relevant round option button and channel number is enabled (black). For each unavailable
channel, the round option button and channel
number appears disabled (grayed-out). Only one
channel at a time may be selected.
Power check:
1- Connect an in-line power meter between the
radio and the antenna.
2- Measure the forward (nominal 40W) and
reflected power levels by powering TX ON.
Never exceed 1W of reflected power.
Pressing the “Show All Channel Frequencies”
button opens a sub-window listing in tabular
form the radio frequencies programmed for each
available channel(s).
4.4.4.3.2
4.4.4.2
Table 3 - Carrier Modulation
Test transmission generates a carrier modulated
with 1kHz sinewave, at deviation level that depends on model and network speed:
RSSI Indicator
The Radio Signal Strength Indicator (RSSI) bar
graph usually displays in twin-columns the relative strength (in dBm) of an incoming RF signal
on the selected channel.
The left column indication, labeled "I", shows
the transceiver RX signal (rear mini-UHF connector).
The right column indication, labeled "II", shows
the auxiliary RX signal (front mini-UHF connector).
Meter precision is usually better than 3 dBm.
120 20110-100
Modulated Carrier
Carrier Modulation
Full Channel
Network Speed
Typical Deviation
19200
± 4.0 kHz
16000
± 4.0 kHz
9600
± 3.0 kHz
Half Channel
15
Network Speed
Typical Deviation
9600
± 2.5 kHz
Gemini/PD Installation Guide
4.4.4.5
This function is frequently used for checking
frequency deviation.
Addresses may be entered by typing directly in
the “Ping Address” field in two ways:
Press the TXON (Modulated) button to begin transmitting a modulated test signal on
the channel selected for 30 seconds or until
pressed again.
The time remaining to test transmit is displayed on the status bar.
1. Numerically, the valid address range is
1-126.
2. As an “Alpha-Mapped-Nibble” (AMN) address, consisting of upper case letters in the
range A-P. The valid address range is A to
GN.
The functions of all the other buttons are
inoperative during test transmissions.
4.4.4.4
Ping addresses
The base address is usually: 1.
Ping Button
The Ping function checks connectivity by testing
the ability of Gemini to communicate with the
base station by sending a short transmission
query and receiving a confirming response.
The program may display one of the following
messages on the status bar:
“Ping address is not in AMN or number format”
or
“Ping address is not in the range A – GN”
1- Specify the channel (paragraph 4.4.4.1) and
ping address (paragraph 4.4.4.5)
2- Press the Ping button to start ping testing.
The time remaining to test transmit is displayed on the status bar. The functions of all
the other buttons are inoperative during
pinging.
In either case, check that the address entered is
within the acceptable range, is of a valid format
and correctly typed.
The program sends a test query and continues
transmitting pings at brief intervals.
As soon as a Ping test signal is returned from
the address selected, the status bar displays:
•
•
“Ping Successful” and pinging stops.
If no ping signal is received after 60 seconds, ping testing stops and the status bar
displays “Ping Failed”.
120 20110-100
16
Gemini/PD Installation Guide
5. Trouble-Shooting and
Testing
5.3
About three minutes after ignition is turned-on,
the PWR LED on the GeminiPD front panel
should flash in amber color at the rate of one
pulse per second. This indicates that the GPS
has acquired the sky position of a sufficient
number of satellites to arrive at a ground position solution.
The checks described below should be done at
annual intervals or whenever deterioration in
performance is noted.
5.1
•
•
•
•
Equipment Required
If the GPS has a good view of the sky and still
has not generated any position solution within
three minutes (it may take up to 10 minutes or
more if the sky view is partially blocked.), the
following trouble-shooting procedures should be
undertaken to isolate the fault:
13.8 VDC (nominal) car battery, or
13.8 VDC/20A regulated power supply (In
the case the unit is not installed in a vehicle)
In-line watt meter (50W range)
Radio service monitor (IFR or equivalent).
Cable with mini-UHF male connector to
connect GeminiPD to the service monitor.
5.2
GPS Test
1) Disconnect the GPS antenna cable connector
from the Gemini radio and check for + 5
VDC on the center pin of the GPS antenna
connector on the radio using a Digital VoltMeter (DVM). If the voltage is present, do
not reconnect the cable and proceed to step 2.
Basic Tests
Recommended checks:
1. Transmit and Reverse power output
2. Carrier frequency error
3. Frequency deviation
4. Receivers RSSI Check
5. Link test between Gemini and the base station.
6. GPS test
2) With the DVM, measure resistance between
the shell and the center conductor of the GPS
cable, resistance should be between 100 and
300 Ohms, if it measures open or short circuit the GPS antenna is either a passive antenna which is the WRONG type, or a defective active antenna, replace with a known
good active antenna.
Refer to Table 4 for checks 1 to 5.
Important note: Before proceeding make sure
that the service monitor has been calibrated
recently and has warmed up for at least the
time specified by its manufacturer.
3) Connect the new antenna to Gemini and wait
about three minutes for the POSITION
ACQUIRED indicator to start flashing on
GeminiPD, if not, the Gemini radio or its GPS
receiver is defective
Some reported frequency and deviation problems have actually been erroneous indications
from service monitors that have not adequately
warmed up. This is particularly likely when field
service is done during winter months
Refer to the RIS section for function details
120 20110-100
17
Gemini/PD Installation Guide
Table 4 - Tests, Full & Half Channel Units
CHECKLIST
STEP
ACTION
EXPECTED RESULTS
at 25°°C
MEASURE
WITH
IF NOT?
Gemini units are set and characterized at the factory to optimize performances. It is not recommended to
try to readjust the units.
Power-up LED
Sequence
Connect and save
config
as per Table
1 - GeminiPD LEDs indications
as per section 4.4.1
Press RIS Get button
Main transceiver
Output Power
UHF: 40 watts
Press TX (Unmod)
Factory-settable down
to 10 watts as per customer request.
Main transceiver
Reverse Power
Service monitor
set to read power
+10%, -10%
or
Refer to factory technical support.
50W in-line
wattmeter
<1 W
50W in-line
wattmeter
±300 Hz
Service monitor
set to read frequency error
check for bad connections, damaged coax cable, etc.
Press TXON (Unmod)
Carrier Frequency
Error
Press TX (Unmod)
TX Deviation
Full channel unit
Press
TXON (Modulated)
19.2 and 16 kb/s:
±4.0 kHz
9.6 kb/s:
±3.0 kHz
Half channel unit
9.6 kb/s:
±2.5 kHz
Tolerance is +5%, -10%
for all bit rates.
Carrier will be modulated with a 1 kHz
tone.
"Ping" a base station
Service monitor
set to read
deviation
(IF filter set to
Mid or 30 kHz
position)
as per sections
4.4.4.4
RF Link test
“Ping Successful”
Refer to factory technical support.
Refer to factory technical support.
Check on the RIS RSSI bar graph
if the base station is within range
(i.e. better than -107dBm) or
Refer to factory technical support.
Set the service monitor to generate at the levels mentioned below. The carrier generated should be modulated with a 1.0 kHz tone at deviation of +/- 4.0kHz (full ch.) or +/-2.5kHz (half ch.).
Main Receiver
RSSI checks
-70dBm
-110dBm
-120dBm
Aux Receiver
Refer to factory technical support.
- 70 dBm +/-3
-110 dBm +/-3
-120 dBm +/- 3
RIS bar graph
The RSSI checks give a good
indication of receivers' health.
same as step 7
RIS bar graph
Refer to factory technical support.
repeat as per step 7
1 (unless you have set a lower value). Note that readings less than 40 watts may be due to losses in cables used for testing.
Check also your wattmeter frequency calibration curve. Do not be too ready to condemn the transmitter.
120 20110-100
18
Gemini/PD Installation Guide
6. Specifications
GENERAL
UHF
800 MHz
806 – 824 MHz (821-824)
851 – 869 MHz (866-869)
Frequency Tx
400 - 512 MHz
Frequency Rx
400 - 512 MHz
Channel spacing
Frequency Control
Frequency Stability
Operating temperature
Modes of Operation
Number of channels
Supply voltage
Circuit Protection
RX Current at 13.6 VDC
TX Current at 13.6 VDC
TX/RX separation
Nominal Dimensions
Weight:
RF input/output Impedance
RF connector
Interface connector
RECEIVER
Sensitivity (12 dB SINAD)
12.5, 20 or 25 kHz
Digital Synthesizer / uController
1.5 ppm
-30°C to +60°C (25°C nominal) @ 95% non-cond. RH
Simplex or Half Duplex
16 internally stored
13.6Vdc nominal (negative ground)
10.9 – 16.3 VDC
15 Amp fuse external
2 & 4 Amp fuse internal
< 550 mA Standby (with auxiliary receiver)
< 15 A
5 MHz typical
7.050” D x 6.000” W x 2.0000” H
< 3.5 lbs.
50 ohms nominal
Main TX/RX: mini-UHF female
Auxiliary RX: mini-UHF female
GPS RX: SMA female
3x DE-9F D-subminiature
< 0.35 µV *
Selectivity (25KHz)
75 dB typical
70 dB minimum
Selectivity (12.5)
65 dB typical
60 dB minimum
Intermodulation
75 dB typical
70 dB minimum
Spurious rejection
75 dB typical
70 dB minimum
FM hum & noise
-45 dB typical *
< -57 dBm
Conducted spurious
* psophometrically weighted filter
WARNING:
120 20110-100
The frequency band 406 to 406.1 MHz is reserved for use by distress beacons
and should not be programmed into the unit.
19
Gemini/PD Installation Guide
TRANSMITTER
Power output
UHF = 10-40 watts
Duty cycle
20% @ full power, 30 seconds maximum transmit time
Conducted Spurious
Frequency stability
800 MHz = 5-35 watts
-75 dBc (-38 dBm @10 W) typical
1.5 ppm
FM hum and noise
Attack time
-45 dB max (25 kHz)
< 10 ms
MODEM OPERATION
Operation
Data rates
Modulation type
Packet Error Rate
(for < 1% error)
Protocol
19200 b/s
DRCMSK
better than –109 dBm at 19200 b/s full channel, single antenna
better than –112 dBm at 19200 b/s full channel, with P/D
Dataradio Proprietary
DISPLAY and CONTROLS
2 status LEDs
RX/TX, PWR
Simplex/half duplex
9600 b/s
FCC / IC
CERTIFICATIONS
UHF
FCC
EOTGPDA
IC (DOC)
773195525A
800 MHz
PENDING
773195643A
120 20110-100
20
Gemini/PD Installation Guide

---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
Linearized                      : No
Producer                        : Acrobat Distiller 4.0 for Windows
Creator                         : Microsoft Word 8.0
Modify Date                     : 2000:03:20 16:35:49-05:00
Author                          : Michel Martin
Subject                         : Gemini/PD hardware and operation
Title                           : Gemini/PD Technical Manual
Create Date                     : 2000:03:20 16:34:57
Page Count                      : 25
Page Mode                       : UseNone

EXIF Metadata provided by EXIF.tools