CalAmp Wireless Networks GPDB GeminiPD User Manual Gemini PD Technical Manual

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Document Description	preliminary updated user manual
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Document Type	User Manual
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Date Submitted	2002-12-19 00:00:00
Date Available	2003-01-14 00:00:00
Creation Date	2002-12-06 11:16:06
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Document Lastmod	2002-12-06 11:16:19
Document Title	Gemini/PD Technical Manual
Document Creator	Microsoft Word 8.0
Document Author:	Michel Martin

GeminiPD+
Mobile Radiomodem
Installation Guide
Version 1.06
PRELIMINARY
The entire contents of this manual and the Radio Installation Software
described in this manual are copyright 2002 by DATARADIO Inc.
Copyright DATARADIO Inc.
December, 2002
Part no.: 120 20120-106 Preliminary
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 .......................................................................................................................................... 2
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...................................................................................................................................... 3
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.
TROUBLE-SHOOTING AND TESTING ..................................................................................................... 11
4.1 EQUIPMENT REQUIRED ................................................................................................................................... 11
4.2 BASIC TESTS ................................................................................................................................................... 11
4.3 ADDITIONAL TEST DETAILS ............................................................................................................................. 15
4.3.1 GPS Test................................................................................................................................................ 15
4.3.2 RF Data Link Test ................................................................................................................................. 15
5.
SPECIFICATIONS .......................................................................................................................................... 16
FIGURE 1 - MOUNTING PLATE AND SLOT DIMENSIONS .................................................................................................... 5
FIGURE 2 - BRACKET INSTALLATION .............................................................................................................................. 5
FIGURE 3 - DC POWER CONNECTOR .............................................................................................................................. 6
FIGURE 4 - ANTENNA SPACING....................................................................................................................................... 7
FIGURE 5 - FRONT AND REAR PANELS ............................................................................................................................ 9
PD+
LEDS INDICATIONS ................................................................................................................... 10
TABLE 1 - GEMINI
TABLE 2 - RS-232 SIGNAL LEVELS .............................................................................................................................. 10
TABLE 3 - TESTS, FULL CHANNEL UNITS..................................................................................................................... 12
TABLE 4 - TESTS, SPECIAL & HALF CHANNEL UNITS .................................................................................................. 13
APPENDIX 1 - "OFFICER REQUIRES ASSISTANCE" ALARM FUNCTION ........................................................................... 18
120 20120-106 Preliminary
ii
GeminiPD+ Installation Guide
What's New in this version
History
Version 1.06, December 2002
•
Introduction of xRC8FSK modulations.
Version 1.05, November 2002
•
MM-reserved – R&D in progress.
Version 1.04, November 2002
•
Introduction of GeminiPD+ in 900 MHz frequency band.
Version 1.03, October 2002
•
Append 1.6 dB cable losses in Section 2.5 (FCC-MPE)
Version 1.02, October 2002
•
Update Section 2.5 (FCC-MPE)
Version 1.01, October 2002
•
Addition of 19.2kb/s bit rate for NPSPAC channels
•
Updated the RF exposure- related paragraphs 2.2.1, 2.5, 2.5.2
Version 1.00, May 2002
•
PD+
Introduction of Gemini
120 20120-106 Preliminary
running data rate up to 32kb/s
iii
GeminiPD+ Installation Guide
Definitions
The following terms are used throughout this document.
Item
DCE
DTE
GCU
PD
Gemini
GeminiPD+
PD
Gemini Lite
HDX
RS-232
WinRIS
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. Limited to 25.6 kb/s.
PD = Parallel decode
On-air compatible with GeminiPD. Runs up to 32 kb/s
PD
Gemini without GPS feature
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.
Windows © Radio Installation Software. This software allows basic tests and
unit configuration.
120 20120-106 Preliminary
iv
GeminiPD+ Installation Guide
1.2.1 Features
1. PRODUCT OVERVIEW
This document provides the information required for the installation, operation and verification of the DATARADIO GeminiPD+.
1.1
Intended Audience
This document is designed for use by engineering design, installation, and maintenance
personnel.
1.2
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 dataonly 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.
PD+
is made-up of:
Gemini
• A main transceiver
• An auxiliary receiver for Parallel Decode
(PD)
• A power amplifier (40-Watt for UHF,
35-Watt for 800 MHz,
25-Watt for 900MHz models)
• A Gemini Control Unit (GCU) with DSP
driven modem
• An optional integrated OEM GPS
receiver.1
The Gemini
PD+
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.
•
Sophisticated DSP-based modem design
provides added system performance, fewer
retries and more effective throughput.
•
Automatic channel changing for improved
roaming capabilities.
•
Built–in, up to 16-channel flash –
EEPROM programmable synthesized radio
transceiver with automatic channel selection.
•
Models with on-air data speeds and
modulation types as follows:
Channel
spacing
NPSPAC
Modulation
type
DGMSK
12.5 kHz
900 MHz
25 kHz
9.6 kb/s
9.6 kb/s
9.6 kb/s
8.0 kb/s
8.0 kb/s
19.2 kb/s
19.2 kb/s
xRC4FSK
XRC8FSK
16 kb/s
16 kb/s
32 kb/s
14.4 kb/s
14.4 kb/s
25.6 kb/s
24.0 kb/s
28.8 kb/s
48.0 kb/s
21.6 kb/s
24.0 kb/s
43.2 kb/s
21.6 kb/s
Lite model has no GPS.
120 20120-105 Preliminary
•
•
3 available user ports using standard RS232 interface via built-in multiplexer.
•
Half-duplex operation.
•
Out-of-band signaling enables transmission of GPS1 reports with no effect on
system performance.
•
On-air compatible with Gemini at all
speeds (except 32 kb/s and xRC8FSK
modulations) and with MobilPac/R at
9600 b/s and 19200 b/s (DGFSK)2
•
3 times faster CPU and 4 times more DSP
memory for future speed upgrade
PD
2 Networks must use common modulation, bit and
baud rates.
Gemini
PD+
Installation Guide
1.2.2 Configuration
1.5
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.
1.3
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.
Factory Technical
Support
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:
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 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.
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
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.
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
1.6
phone: 1 770 392-0002
fax:
1 770 392-9199
Email address: drctech@dataradio.com
Product Warranty
Warranty information may be obtained by
contacting your sales representative.
120 20120-105 Preliminary
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.
Technical support hours: Monday to Friday
8:30 AM to 5:30 PM, Eastern Time
1.4
Replacement Parts
Gemini
PD+
Installation Guide
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
2.2
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.
Before starting installation, review all of the
following warnings.
2.2.1 RF Radiation warning
2.1.2 Location
Recommended safety guidelines for the human
exposure to radio frequency electromagnetic
energy are contained in the Canadian Safety
Code 6 and the Federal Communications
Commission (FCC) Bulletin 65. Proper installation of the transceiver antenna of GeminiPD+
as summarized in section 2.5 will result in user
exposure substantially below the recommended limits for the general public.
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.
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
Qualified personnel must do all antenna installations. See paragraph 2.5.2 for recommended antenna positioning.
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.
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.
2.2.2 Interference
electronics
with
vehicular
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
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 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
120 20120-105 Preliminary
Warnings
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
Gemini
PD+
Installation Guide
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.
loose in case of an accident or violent maneuvers.
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.
2.3
2.3.1 Recommended tools and
supplies
•
•
•
•
•
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.
• After drilling, remove all
metal shavings before installing
screws.
• Do not overtighten selftapping screws.
2.2.5 Installation in vehicles powered by liquefied gas.
PD+
Gemini 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:
Space containing radio equipment shall be
isolated by a seal from the space containing the LP-gas container and its fittings.
120 20120-105 Preliminary
Physical Unit
Gemini
PD+
Installation Guide
7. Drill any additional holes as required for
routing all cables and fit holes with
suitable grommets or bushings whenever
required.
1. Once you have found a suitable mounting
PD+
position for Gemini , 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.
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
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.
Warnings:
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).
2.4.2 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 a Packard Electric “Weather-Pack” connector
(DC power Connector).
Figure 2 - Bracket installation
5. Install the bracket without distorting.
6. Securely mount GeminiPD+ to the installed
bracket using the four supplied 8x40 black
machine screws.
120 20120-105 Preliminary
Electrical installation
Gemini
PD+
Installation Guide
6. Repeat the step above for connecting the
red DC power lead.
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)
7. Attach the positive lead at the battery
positive terminal. Attach the negative wire
at the vehicle end of the battery ground
cable.
If the negative cable is connected
directly to the battery negative terminal, it should be fused in case of
failure of the vehicle’s ground cable.
SEAL
Ensure tight and secure connections.
(DO NOT REMOVE)
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).
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
the 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.
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.
Insert the fuse only when installation
is complete and ready to test.
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 20120-105 Preliminary
11. At the GeminiPD+ position, neatly coil cable slack and attach securely.
Gemini
PD+
Installation Guide
2.5
Antenna
MPE
The main transmitter antenna must be vehiclemounted to provide a separation distance of 50
cm or more from all persons and the antenna
gain must not exceed 5dBi with a 1.6dB cable
loss.
50cm
19.7in.
2.5.1 Recommended tools and
supplies
•
•
≥5/8λ
λ
(UHF: 18"/46cm
800MHz: 9"/23cm
900MHz: 8”/21cm)
≥24in.
circle cutter, hole saw or socket punch for
antenna
Mini-UHF Crimp tool
2.5.2 Planning
PD+
Referring to Figure 4, Gemini
commonly
uses three separate antennas:
• “T” - Main transceiver Constraints are the limit of 50 cm (see
section 2.5 above) and omni-directional
factors
•
Figure 4 - Antenna spacing
Install the antennas in one of the following
positions:
- 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.
“R” - Auxiliary receiver –
Constraints are the receiver spacing of at
least 5/8 λ (wavelength) from transceiver
antenna and omni-directional requirements
•
“G” - Global Positioning System (GPS)*
Constraints are TX spacing of at least 24in/60.96 cm from all transmitting antennas
and a clear view of the sky.
For the optimum antenna spacing at the frequency you are using, consult System Engineering.
For installation of ground-plane dependent
antennas, the center of the metal surface used
for mounting is preferable for best omnidirectional pattern.
For ground-plane independent antennas, installation may be close to the edges of the surface.
The Gemini
PD+
Lite model has no GPS.
120 20120-105 Preliminary
Gemini
PD+
Installation Guide
2.5.3 Antenna Installation
2.6. Completing the physical
Installation.
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.
To complete the physical installation and prior
to testing GeminiPD+:
2. Terminate the end at each of the antenna
positions with the appropriate connector
for the antenna used and make the connection.
PD+
position, cut the three
3. At the Gemini
cables to length and terminate with the appropriate plug. For the transceiver and the
auxiliary cables, use a Mini-UHF crimp
plug using an appropriate crimping tool.
For the GPS, use a SMA connector.
•
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.
You are now ready to check for normal operation and to run the Radio Installation Software
(WinRIS) program for testing or troubleshooting.
4. Positively identify the transceiver miniUHF plug and connect to the left rear of
GeminiPD+.
2.7. Checking out Normal operation
5. Positively identify the auxiliary receiver
mini-UHF plug and connect to the front
left of GeminiPD+ to the RX position.
Check that the vehicle ignition is ON.
6. Connect the SMA connector to the GPS*
position below the auxiliary connector position.
2. Using the WinRIS program and an in-line
wattmeter, check forward & reverse power
to confirm main antenna installation (as
per section 4).
1. Check for proper operation of the GemPD+
ini ’s LEDs as per Table 1 in section 3.1
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 the auxiliary plug
with the transceiver plug.
3. Using WinRIS, check the RF Data Link
with a base station that can be heard (as
per section 4.3.2.
If user application and its base station are
available, test the installation by going
through a normal sequence of transmitting
and receiving messages.
* The GeminiPD+ Lite model has no GPS.
120 20120-105 Preliminary
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 (not installed on Gemini
•
Two LED indicators
PD+
Lite model)
• 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 5 - Front and rear panels
120 20120-106 Preliminary
Gemini
PD+
Installation Guide
PD+
Table 1 - Gemini
LEDs indications
GeminiPD+ LEDs indications
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
Indication
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
No network activity
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
Transmitting
Special
* For 800 & 900 MHz models (using duty cycle limit) :
3.2
PWR lit Green / Flashing Amber = normal indication (GPS 1pulse per sec.)
PWR lit Amber / Flashing Green = exceeded duty cycle (GPS 1pps)
DTE Port Interface
For all three ports:
DE-9 F
pin #
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
PD+
DCD – from Gemini , normally asserted
PD+
RXD – data from Gemini
PD+
TXD – data to Gemini
PD+
DTR – to Gemini , handshaking
Ground
PD+
DSR – from Gemini , tied to VCC
through current limiting resistor
PD+
RTS - to Gemini , handshaking
PD+
CTS – from Gemini , handshaking
PD+
AUX - auxiliary input to Gemini , (at port
2: “Officer requires assistance” Alarm input)
It may be activated by (normally open) 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.
A +3 to +12 V signal at this pin will send a
DMP “x” (On) message to the base.
An open or ground signal will send a DMP
“y” (Off) message.
Messages are only sent when a signal
transition occurs.
See Appendix “A” on page 18 for further
details.
120 20120-106 Preliminary
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
Term
OFF
10
Alternates
asserted, spacing
dropped, marking
Gemini
PD+
Signal level
+3 to +15 V
-3 to -15 V
Installation Guide
4. Trouble-Shooting and Testing
The checks described below should be done at annual intervals or whenever deterioration in performance
is noted.
4.1
•
•
•
•
•
Equipment Required
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.
WinRIS version 3.11 or later*
4.2
Basic Tests
Recommended checks:
1. Transmit and Reverse power output
2. Carrier frequency error
3. Frequency deviation
4. Receivers RSSI Check
5. RF Data Link test between a Gemini and a base station.
6. GPS test (not required on GeminiPD+ Lite model).
Refer to Table 3 and Table 4 for checks 1 to 5.
Refer to paragraph 4.3.1 for check 6.
Important note: Before proceeding make sure that the service monitor has been recently calibrated
and has warmed up for at least the time specified by its manufacturer.
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
* To find out how to launch the Windows-based software alignment and system-testing tool WinRIS,
please refer to the readme.txt file on the application’s installation diskette. For functional details of the
numerous buttons and menu-selectable items available, please refer to the program’s context sensitive
help. It is also possible to access the help information via the F1 key.
120 20120-106 Preliminary
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Gemini
PD+
Installation Guide
Table 3 - Tests, Full Channel Units
STEP
ACTION
CHECKLIST A
EXPECTED RESULTS at
25°°C
MEASURE WITH
IF NOT?
GeminiPD+ 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
as per WinRIS Help content
Press WinRIS Get button
Main transceiver Output
Power
Press TX (Unmod)
Main transceiver Reflected
Power
Press TXON (Unmod)
UHF: 40 watts
800MHz: 35 watts
both +10%, -10%
Factory-settable down to 10
watts (5 watts for 800MHz
model) as per customer request
Service monitor
set to read power
< 5% of forward power or as
specified by System Eng.
10W in-line wattmeter
Check for bad connections,
damaged coax cable, etc.
± 300 Hz
Service monitor
set to read frequency error
Refer to factory technical
support.
Carrier Frequency Error
Press TX (Unmod)
1 - GeminiPD+ LEDs indications
TX Deviation (in kHz)
Press
TXON (Modulated)
Speed
or
50W in-line wattmeter
Refer to factory technical
support.
UHF 800 US 800 CA
48.0kb/s ±5.0
±3.5
±3.5
43.2kb/s ±5.1
Carrier will be modulated with
32.0 kb/s ±4.3
a 1 kHz tone.
25.6 kb/s ±4.0
±4.1
±3.6
±4.1
±3.6
Service monitor set
to read deviation
±3.7
±3.7
(IF filter set to Mid
or 30 kHz position)
19.2 kb/s ±4.0 ±4.0
9.6 kb/s ±3.0 ±3.0
±4.0
±3.0
Refer to factory technical
support.
Tolerance is +5%, -10% for all bit rates.
RF Data Link test
Use the addressing function’s
“Send” button to dynamically
test transmissions
Look for
“Delivery confirmed” on the
WinRIS Status bar.
Refer to section
4.3.2 and to WinRIS Help content.
Check on the WinRIS 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 unit antenna jack the RF levels mentioned below. The carrier generated
should be modulated with a 1.0 kHz tone at deviation as per step 4 above.
Main Rec. RSSI checks
-70dBm
-110dBm
-120dBm
Aux Receiver
repeat as per step 7
- 70 dBm +/-3
-110 dBm +/-3
-120 dBm +/- 3
same as step 7
WinRIS bar graph
The RSSI checks give a general indication of receivers'
health
WinRIS bar graph
Refer to factory technical
support only if RX data performance degradation is noticed combined to out of tolerance RSSI readings.
1 (unless you have set a lower value). Note that readings less than 40 watts (UHF model),35 watts (800MHz model) or 25W
(900MHz model) 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 20120-106 Preliminary
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Gemini
PD+
Installation Guide
Table 4 - Tests, Special & Half Channel Units
STEP
ACTION
CHECKLIST B
EXPECTED RESULTS at
25°°C
MEASURE WITH
IF NOT?
GeminiPD+ 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
Press WinRIS Get button
Main transceiver Output
Power
Press TX (Unmod)
as per Table
1 - GeminiPD+ LEDs indications
as per WinRIS Help content
UHF: 40 watts
800MHz: 35 watts
900MHz: 25 watts
all +10%, -10%;
Factory-settable down to 10
watts as per customer request
Service monitor set to
read power
or
50W in-line wattmeter
Refer to factory technical
support.
Main transceiver Reflected
Power
Press TXON (Unmod)
< 5% of forward power or as
specified by System Eng.
10W in-line wattmeter
Check for bad connections,
damaged coax cable, etc.
Carrier Frequency Error
Press TX (Unmod)
± 300 Hz
Service monitor set to
read frequency error
Refer to factory technical
support.
TX Deviation (in kHz)
Press
TXON (Modulated)
Special channel unit
800 US
(NPSPAC)
900 US
±3.2
±2.8
±3.4
±3.4
21.6kbps
±3.7
xRC4FSK
800 US
900 US
19.2 kb/s
±2.1
±2.1
16.0 kb/s
±2.4
±2.4
DGFSK
800 US
900 US
xRC8FSK
Carrier will be modulated with 28.8kb/s
a 1 kHz tone.
24.0kb/s
9.6 kb/s
±2.5
±2.5
8.0 kb/s
±2.5
±2.5
(IF filter set to Mid or
30 kHz position)
Half channel unit
xRC8FSK UHF
800 US
800 CA
24.0kb/s
±2.5
±2.5
±2.5
21.6kb/s
±2.9
±2.9
±2.9
800 US
800 CA
xRC4FSK UHF
Service monitor set to
read deviation
16.0 kb/s
±1.9
±1.9
±1.9
14.4 kb/s
±2.3
±2.3
±2.3
DGFSK
UHF
800 US
800 CA
9.6 kb/s
±2.5
±2.5
±2.5
8.0 kb/s
±1.5
±1.5
±1.5
Refer to factory technical
support.
Tolerance is +5%, -10% for all bit rates.
120 20120-106 Preliminary
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PD+
Installation Guide
5
RF Data Link test
Use the base station address
function and “Send” button to
dynamically test the link
Look for
“Delivery confirmed” on the
WinRIS Status bar.
Refer to section
4.3.2 and to
WinRIS Help
content.
Check on the WinRIS 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 unit antenna jack the RF levels mentioned below. The carrier generated
should be modulated with a 1.0 kHz tone at deviation as per step 4 above.
Main Receiver RSSI checks
-70dBm, -110dBm, -120dBm
Aux. Receiver RSSI checks
repeat as per step 7
- 70 dBm +/-3 dB
-110 dBm +/-3 dB
-120 dBm +/- 3 dB
WinRIS bar
graph
same as in step 7 above
WinRIS bar
graph
The RSSI checks give a general indication of receivers' health
Refer to factory technical support
only if RX data performance degradation is noticed combined to out of
tolerance RSSI readings.
(unless you have set a lower value). Note that readings less than 40 watts (UHF model) , 35 watts (800MHz model) or 25W (900MHz
model) 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 20120-106 Preliminary
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Gemini
PD+
Installation Guide
4.3
Additional test details
4.3.1 GPS Test
4.3.2 RF Data Link Test
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.1 This indicates that the GPS
has acquired the sky position of a sufficient
number of satellites to arrive at a ground position solution.
A link test between a mobile and a known base
station can be done using the WinRIS "Address"
and "Send" functions. The “Address” and “Device” fields, the “Send” button and the “Chat”
message screen are used to send messages to
specific mobile or base or to carry out RF test.
Start by entering the address of the mobile (or
base station) you wish to send a test message to
or test:
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:
1- Specify the address:
Addresses may be entered by typing directly
in the “Address” field in two ways:
- Numerically, the valid address range is
1-126.
- 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 base address is usually: 1.
- The program may display one of the following messages on the status bar:
- For Paragon products:
“address is not in AMN or number format”
- For mobile products:
“address is not in the range A – GN”
In either case, check that the address entered is
within the acceptable range, is of a valid format
and correctly typed.
2- Enter Device number of mobile/base station
3- Press the Send button.
The Chat window reports “Sent to xx mobile”
(where xx is mobile name).
If test is successful:
Status line reports “Delivery confirmed.
If test unsuccessful:
Chat window reports “Waiting”,
Then the Status line reports “Delivery Failed”.
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.
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.
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
Lit green and flashing amber for the 800MHz & 900MHz
models under duty cycle limit.
120 20120-106 Preliminary
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Gemini
PD+
Installation Guide
5. Specifications
GENERAL
UHF
Frequency
403 - 460MHz ,
450 - 512 MHz
Channel spacing
Frequency Control
Frequency Stability
Operating temperature
Modes of Operation
Number of channels
Supply voltage
800 MHz
900 MHz
TX 806 - 824 MHz,
RX 851 - 869 MHz
TX 896 - 902 MHz ,
RX 935 - 941 MHz
12.5 or 25 kHz
Digital Synthesizer / uController
1.5 ppm
-30°C to +60°C (25°C nominal) @ 95% non-cond. RH
Half Duplex
16 internally stored, flash-EEPROM programmable
13.6Vdc nominal (negative ground)
10.9 – 16.3 VDC
15 Amp fuse external,
Internal crowbar diode for reverse polarity protection
< 650 mA Standby (with GPS receiver)
Circuit Protection
RX Current at 13.6 VDC
TX Current at 13.6 VDC
< 15 A
TX/RX separation
Nominal Dimensions
Weight:
RF input/output Impedance
RF connector
any, 5 MHz typical
45 MHz typical
7.1” D x 6.0” W x 2.0” H
< 4.5 lbs.
50 ohms nominal
Main TX/RX: mini-UHF female
Auxiliary RX: mini-UHF female
GPS RX: SMA female (Not installed for Gemini
Interface connector
PD+
39 MHz typical
Lite version)
3x DE-9F D-subminiature
RECEIVER
Sensitivity (12 dB SINAD)
-116 dBm (< 0.35 µV) *
Adjacent channel rejection
(Selectivity)
Intermodulation rejection
75 dB @25 kHz, 65 @ 12.5 kHz
75 dB
FM hum & noise ratio
40 dB @12.5 kHz, 45 dB @ 25 kHz *
80 dB
Spurious Response
Rejection
Conducted spurious
* psophometrically weighted filter
-57 dBm
TRANSMITTER
Power output
UHF = 10-40 watts
Duty cycle limit
800 MHz = 10-35 watts
25% (800MHz) 33%(900MHz) @ full power, 30 secs. max. TX time (subject to FCC MPE limit)
Conducted Spurious
Frequency stability
-80 dBc
1.5 ppm
FM hum and noise ratio
Attack time
40dB @ 1.5 kHz deviation, 45 dB @ 3.0 kHz deviation
< 10 ms
Operation
900 MHz = 10-25 watts
Half duplex
WARNING:
The frequency band 406 to 406.1 MHz is reserved for use by distress beacons and should not
be programmed into the unit.
WARNING:
901-902 MHz is reserved for use outside US/Canada.
120 20120-106 Preliminary
16
Gemini
PD+
Installation Guide
Data rates and
Modulation type
DGFSK (8000 b/s, 9600 b/s, 19200 b/s)
SRRC4FSK (14400 b/s, 16000 b/s,19200b/s, 25600 b/s)
RC4FSK (32000 b/s: GeminiPD+ only)
xRC8FSK (48000 b/s, 43200 b/s,28800b/s, 24000 b/s,21600b/s: GeminiPD+ only )
UHF
800 MHz
900 MHz
–112 dBm at 19200 b/s full
–112 dBm at 19200 b/s
channel
full channel
–110 dBm at 25600 b/s full
–109 dBm at 25600 b/s
channel
full channel
–107 dBm at 32000 b/s full
–107 dBm at 32000 b/s
channel
full channel
–TBD dBm at 24000 b/s half
–112 dBm at 16000 b/s
channel
NPSPAC channel
–TBD dBm at 43200 b/s full
–TBD dBm at 28800 b/s
channel
NPSPAC channel
–TBD dBm at 48000 b/s full
–TBD dBm at 48000 b/s
channel
full channel
Dataradio Proprietary DBA with OOB AAVL support
Packet Error Rate
(for < 1% error, with
Parallel Decode, at Fc)
TBD8FSK
Protocol
DISPLAY and CONTROLS
2 status LEDs
–TBD at 16000 b/s half
channel
–TBD at 14400 b/s half
channel
–TBD at 9600 b/s half
channel
–TBD at 8000 b/s half
channel
TBD dBm at 21600 b/s
half channel
–TBD dBm at 24000 b/s
half channel
RX/TX, PWR
Environmental MIL. spec.
Environment
Categories
Low Pressure
High Temperature
Low Temperature
Temperature Shock
Solar Radiation
Rain1
Humidity1
Dust1
Vibration
Shock
Operations
Operations, Storage
Operations, Storage
Transfer of equipment
Heat effects
Drip rain
Induced, Aggravated
Blowing dust
Ground Mobile
Functional, Bench handling
FCC / IC CERTIFICATIONS
FCC
IC (DOC)
UHF
EOTGPDA
773195525A
800 MHz
EOTGPDB
773195643A
900 MHz
EOTGPD9
PENDING
MIL Spec. 810E
Method
Procedure
500.3
II
501.3
I(A1), II
502.3
I(C3), II (C1)
503.3
I(AI,C2)
505.3
506.3
II
507.3
II,III
510.3
514.4
I(8)
516.4
I,VI
EMISSION DESIGNATORS
kb/s
Bauds
Modulation
19.2
19200
DGMSK
16.0
16000
DGMSK
9.6
9600
DGMSK
8.0
8000
DGMSK
32.0
16000
RC4FSK
25.6
12800
SRRC4FSK
19.2
9600
SRRC4FSK
16.0
8000
SRRC4FSK
14.4
7200
SRRC4FSK
48.0
16000
xRC8FSK
43.2
14400
xRC8FSK
28.8
9600
xRC8FSK
24.0
8000
xRC8FSK
21.6
7200
xRC8FSK
Other
IEC IP54 only II
IEC IP54
EIA RS-204C Forestry
EIA RS-204C
UHF
15K0F1D
15K3FID
8K60FID
16K5F1D
15K6F1D
8K17F1D
8K67F1D
17K0F1D
16K4F1D
8K17F1D
9K67F1D
800MHz
15K0F1D
15K3F1D
8K60F1D
15K6F1D
15K6 / 11K5F1D
16K0 / 10K2F1D
10K0F1D
11K0F1D
14K7F1D
14K7F1D
11K2F1D
11K0F1D
900MHz
10K2F1D
8K75F1D
9K92F1D
10K7F1D
11K8F1D
10K2F1D
11K4F1D
11K8F1D
MIL Specification not guaranteed with GeminiPD Lite version.
120 20120-106 Preliminary
17
Gemini
PD+
Installation Guide
Appendix 1 - "Officer Requires Assistance" alarm function
The contents of this appendix are also available as Technical Instruction Sheet 009 (TIS009),
document part number 122 20110-009 dated December 20, 2000.
Overview
The DTE Port Interface pin 9 (AUX) on DEV-2 is used for the “Officer Requires Assistance”
alarm function.
Intended Audience
This document is designed for use by System Integrators.
Physical Connection
This auxiliary input may be activated by (normally open) dry contact pull-up to the port’s DSR
output. It can 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.
A +3 to +12 V signal at this pin will send a DMP “x” (On) message to the base.
An open or ground signal will send a DMP “y” (Off) message.
Messages are only sent when a signal transition occurs (debounced for approximately 100 ms).
Operation
When using GeminiPD+ or GeminiPD+ Lite products, activating the “Officer Requires Assistance”
alarm input starts emergency communications:
•
The modem creates DMP “x” or “y” messages.
•
Any other pending message(s) will be failed to avoid delaying the alarm message on account
of lower priority traffic and to remove non-emergency messages from duty-cycle management (if applicable). In the case of a “q” message, a D-NAK* will be immediately returned.
•
Base and Channel hunt will take place for the usual number of retries per base (according to
configuration) but will cycle forever until D-ACKed1 or Reset1.
•
Lack of base DBA synch will not prevent transmission to maximize the chance that a base
gets the alarm signal. DBA “Freewheel” mode will be forced until the alarm is acknowledged.
For details on DMP terms, refer to DMP 1.5 manual, version 4.0
120 20120-106 Preliminary
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PD+
Installation Guide

---

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Modify Date                     : 2002:12:06 11:16:19-05:00
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