2.4.2Routing of power cable ............................................................................................................................5
4.4.2Configuration to a file............................................................................................................................13
4.4.4.1Banner Field ..................................................................................................................................... 14
RSSI & Power Out Indicators.............................................................................................................................. 16
4.4.5.6P ing Button ...................................................................................................................................... 17
4.4.5.7P ing addresses.................................................................................................................................. 17
4.4.6Status Bar ...............................................................................................................................................17
5.TROUBLE-SHOOTING AND TESTING .......................................................................................................19
History
Version 1.42 (Preliminary), April 2001
Following sections are amended to show SRRC4FSK 12.5kHz channel spacing
bit rates.
- Section 1.2.1 Features
- Table 3 Carrier Modulation
- Table 5 Tes ts , Full & Half Channel Units
Section 6 Specifications
-
Version 1.41, March 2001
•
Section 2.5 “Antenna” and Figure 4 “Antenna spacing” amended to show
FCC’s RF Exposure Guidelines for increased Duty Cycle.
Version 1.40, December 2000
• Supporting footnotes for Gemini/PD Lite model (No GPS option) added.
• Section 3.2, function of DE-9F pin 9 (Aux input) corrected and clari-
fied.
• Section 4.0, re-written to support the WinRIS program.
• Section 5.0, Table 5, step 4, values revised.
• Section 6.0, MIL Specifications limitations note added.
• Appendix 1, clarification of “Officer Requires Assistance” alarm
function added.
Version 1.32, October 2000
• Updated UHF units specifications:
- Table 3 "Carrier Modulation"
- Table 4 “Tests, Full & Half Channel Units”
- Section 6 “Specifications”.
Version 1.31, August 2000
120 20110-142
iii
GeminiPD Installation Guid e
• Introduction of 25.6 Kbps model. Relevant changes made to:
- Section 1.2.1 “Features”
- Table 3 “Carrier Modulation"
- Table 4 “Tests, Full & Half Channel Units”
- Section 6 “Specifications”.
- Emission designators table added to Section 6 “Specifications”.
Version 1.30, August 2000
• Power output specifications for 800MHz model added to section 1.2.1
“Features”.
• Main transceiver Output Power for 800MHz model added to:
Table 4 “Tests, Full and Half Channel Units” and minimum value edited
in the footnote.
• Title of section 4.4.4.2 edited to specify that RSSI Indicator also
serves as power meter. Note added to establish that the internal
wattmeter is not to be interpreted as a precision instrument.
• Section 4.4.4.3.1 “Unmodulated Carrier” edited to show 800MHz model
power check nominal forward wattage.
• Section 2.4.2 “Routing of Power Cable”, step no. 7, clarification of
negative wire connection.
Version 1.20, June 2000:
• LED indication explanation for the 800MHz (2% duty cycle limit) model
added as a footnote to table 1 and to section 5.3 GPS Test.
• Section 2.5 “Antenna” rewritten and now including more details con-
cerning “Planning” and has a new antenna spacing drawing.
• More details added to section 4.2 concerning starting of the WinRIS
program from MS-Windows.
• Environmental MIL spec added
• FCC Certification number added to Specifications section.
Version 1.10, March 2000:
Addition of 800MHz specifications, revision to paragraph 2.2.1 - RF Ra-
diation Warning and to paragraphs 2.5 through 2.5.3. – Antenna installation.
Version 1.0, January 2000:
First released version
120 20110-142
iv
GeminiPD Installation Guid e
120 20110-142
v
GeminiPD Installation Guid e
Definitions
The following terms are used throughout this document.
ItemDefinition
DCE
Data C ommunications Equipment. This designation defines the direction (input or
output) of the various RS-232 interface signals. Modems are always wired as
DCE.
DTE
Data Terminal Equipment. T his designation defines the direction (input or output)
of the various RS-232 interface signals. Most user equipment, as well as PCs, are
wir ed as DTE.
GCU
Gemini
GeminiPD Lite
HDX
PD
GeminiPD Control Unit board
High specs mobile radiomodem. PD = Parallel decode
GeminiPD without GPS feature
Half Duplex. A unit that uses separate transmit and receive frequencies, but
which may not transmit and receive simultaneously.
This document provides the information required for the installation, operation and
verification of the
DATARADIO
Gemini
mobile radiomodem.
1.1 Intended Audience
This document is designed for use by engineering design, installation, and maintenance
personnel.
1.2 General Description
GeminiPD is a mobile radiomodem aimed at
the public safety a nd public utility markets
to me et dema nd for hi gh spee d and hi gh
throughput. It integrates all the necess a ry
hardware for d a ta -o nly vehicula r
installations up to but not including the
laptop PC a nd its applic a tion software.
Example of applications are:
1. Database inquiry systems.
Small number of brief messages, (usu-
ally from the mobile station) with fairly
long responses.
2. Computer-aided dispatch (CAD).
Large number of messages, (usually
from the base s ta tion) with very brief responses.
3. Automatic Vehicle Location (AVL).
Using built-in GPS receiver, determines
position, speed a nd direction of fleet
members.
The Gemini
transceiver and an auxiliary receiver for
Parallel Decode (PD), a 40-Watt power
amplifier (35-Watt for 800 MHz model), a
Gemini
driven modem and an optional integrated
OEM GPS receiver. *
PD
is made-up of a main
PD
Control Unit (GCU) with DSP
PD
• Parallel Dec ode (PD) technology (pate nt
pending) featuring dual receivers for
added decode sensitivity in multi-path
and fading environments.
• Sophistica ted DSP-based modem design
provides added system performance,
fewer retries and more effective
throughput.
• Automatic channel changing for im-
proved roaming capabilitie s .
• Built–in, up to 16-channel flash –
EEPROM programmable synthesized
radio transceiver with automatic channel
selection.
• Models with on-air data s pe ed s a nd
modulation types as follows:
- DGFSK* modulation, rates of 9600
to 19200 b/s in 12.5 or 25 kHz
channel spacing (9600 b/s maximum
in half channels).
or
- SRRC4FSK* modulation, rates of
25600 and 19200 b/s
in 25 kHz or
16000 and 14400 b/s in 12.5 kHz
channel spacing.
• 3 available user ports us ing standard
RS-232 interface via built-in multiplexer.
• Half-duplex or simplex operation.
• Out-of-band signaling enables transmis-
sion of GPS* reports with no effect on
system performance.
• Back-compatible with MobilPac/R
(DGFSK)* at 9600 and 19200 b/s.
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.
1.2.1 Features
• One-piece integrated design in a rugged
die-cast aluminum chassis.
120 20110-142GeminiPD Installation Guid e
*
Networks must use common modulation, bit
and baud rates.
The GeminiPD Lite model has no GPS.
*
1
1.3 Factory Technical
Support
The Technical Support departments of
DATARADIO
technical problems and serve as an interface
with factory repa ir facilitie s . They can be
reached in the following ways:
DATARADIO Inc.
5500 Royalmount Ave, suite 200
Town of Mount Royal
Quebec, Canada H4P 1H7
Technical support hours: Monday to Friday
9:00 AM to 5:00 PM, Eastern Time
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
provide customer assistance on
1.5 Replacement Parts
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.
Contact Technical Support for service information before returning equipment. A
Technical Support representative may suggest a solution eliminating the need to return
equipment.
1.5.1 Factory Repair
When returning equipment for repair, you
must request an RMA (Returned Material
Authorization) number. The Tech Support
representative will ask you seve ral questions
to clearly identify the problem. Please give
the representative the name of a contact person who is familiar with the problem, should
questions aris e during servicing of the unit.
Customers are responsible for shipping
charges for retu rned u nits . 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.
1.4 Product Warranty
Warranty information may be obtained by
contacting your sales representative.
120 20110-142GeminiPD Installation Guid e
1.6 Unpacking
When ready for installation, carefully unpack
your Gemini
ping carton and identify each item as listed
below:
• One Gemini
• Installation mounting bracket
• Power ca bl e – 2 2 feet (6 . 7 mete rs )
• Small parts kit
If damage has occurred to the equipment
during shipment, file a claim with the carrier
immediately.
2
PD
kit (p/n 023 6000-001) ship-
PD
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 Gemini
antennas as well as the routing of all ass ociated cabling and wiring.
PD
and its
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 cab les .
2.2 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 usua lly done in the bac k of the vehicle.
In large vehicles, it is often done in the front
cabin.
Be sure to place the Gemini
PD
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
Gemini
PD
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.
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 pass e ngers.
Keep wiring away from automotive computer modules, other electronic modules and
ignition circuits to help prevent interference
Before starting installation, review all of the
fo ll owi ng war nings .
2.2. 1 RF Radiation warnin g
The Federal Communications Commission
(FCC), with its ac tion in the G e neral Doc ke t,
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 Gemini
PD
as summarized in section 2.5
will result in user exposure substantially
below the FCC recommended limits.
Qualified personnel must do all antenna installations. See paragraph 2.5.2 for recommended a ntenna pos itioning.
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
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
120 20110-142GeminiPD Installation Guid e
3
Loading...
+ 21 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.