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Installation Guide Version 1.42 Preliminary – For Internal Use Only The entire contents of this manual and the Radio Installation Software described in this manual are copyright 2000 by Inc. DATARADIO Copyright Inc. DATARADIO April, 2001 Part no.: 120 20110-142...
Table of Contents PRODUCT OVERVIEW............................. 1 1.1 I ............................1 NTENDED UDIENCE 1.2 G ............................1 ENERAL ESCRIPTION 1.2.1 Features..............................1 1.2.2 Configuration ............................1 1.3 F .......................... 2 ACTORY ECHNICAL UPPORT 1.4 P ............................2 RODUCT ARRANTY 1.5 R ............................
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4.4.4.2 Comments............................15 4.4.4.3 Password ............................15 4.4.5 Test Functions ............................15 4.4.5.1 DSR signal is High indicator ....................... 15 4.4.5.2 CTS signal is High indicator ....................... 16 4.4.5.3 Channel Selection..........................16 RSSI & Power Out Indicators..........................16 4.4.5.5 TXON tests............................16 4.4.5.5.1 Unmodulated Carrier........................
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What's New in this version 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 Tests, Full & Half Channel Units - Section 6 Specifications Version 1.41, March 2001 •...
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• 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 •...
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Definitions The following terms are used throughout this document. Item 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.
(35-Watt for 800 MHz model), a each customer network system requirements, Gemini Control Unit (GCU) with DSP usually by Dataradio System Engineering. driven modem and an optional integrated Configuration is not changeable in the field OEM GPS receiver. * without notifying Dataradio.
They can be Contact Technical Support for service in- reached in the following ways: formation before returning equipment. A DATARADIO Inc. Technical Support representative may sug- 5500 Royalmount Ave, suite 200 gest a solution eliminating the need to return Town of Mount Royal equipment.
between these components and radio equip- 2. Installation ment. Try using existing holes in firewall and trunk Planning the Installation wall and the channels above and below or beneath the doors, channels through doors 2.1.1 Overview and window columns that are convenient to run cables and wires.
If the installation vehicle contains such containing the LP-gas container and its equipment, consult the dealer for the make fittings. of vehicle and enlist his aid in determining if Outside filling connections shall be used such electronic circuits will perform nor- for the LP-gas container.
• Do not overtighten self- 7. Drill any additional holes as required for tapping screws. routing all cables and fit holes with suitable grommets or bushings whenever 1. Once you have found a suitable mount- required. ing position for Gemini , hold the unit and the unattached mounting bracket in the proposed mounting position and...
6. Repeat the step above for connecting the The DC Power connector has: red DC power lead. 7. Attach the positive lead at the battery • positive terminal. Attach the negative At position “A”, the smaller red wire at the vehicle end of the battery switch-sense wire (commonly to ignition) •...
Antenna To meet the FCC’s RF Exposure Guidelines, ≥ ≥ ≥ ≥ 5/8λ λ λ λ (UHF: 18"/46cm the main transmitter antenna must be vehicle- 800MHz: 9"/23cm) mounted to provide a separation distance of 50cm 19.7in. 50 cm or more from all persons and the an- tenna gain must not exceed 5dB to satisfy RF exposure requirements.
• Connect DC Power cable’s connector to 2.5.3 Antenna Installation Gemini ’s until you hear a click as the two parts snap together. 1. Route good quality 50-ohm coaxial ca- • Re-check that all other connections are bles (e.g. RG-223) from each of the se- secure (antennas, PC, etc.) lected antenna positions to the position •...
3. Operating Description 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 Lite model) • Two LED indicators •...
Table 1 - Gemini LEDs indications Gemini LEDs indications Power-on Sequence (LEDs are paired) Normal Operation (LEDs are independent) RX / TX Indication Indication RX / TX Indication Normal boot-up start Green* Normal ready state No network activity (10 to 27 sec.) Then 8 seconds to 1 Pulse/sec.
Gemini ’s WinRIS program is available on To run the program, you will need: diskette, Dataradio p/n 980 03392-00 n . A PC or portable computer running a 32-bit MS- Refer to the WinRIS Readme.txt Windows application:...
Figure 6 - WinRIS window Test menu lists the: Window Modulated command This program uses one main display screen only. UnModulated command Placing the cursor over a Toolbar or Button gen- View menu lists the: erates a ScreenTip . Referring to Figure 6, start- Toolbar checked command ing from top and moving down to the bottom, the Status bar checked command...
Do not make any changes to these files. Any • Test and/or trouble-shoot installations changes made to the configurations MUST be done at factory or by Dataradio system 4.4.1 “Station Reset” button engineering. The Station Reset button is the only button 4.4.2.1...
If you do not wish to overwrite an existing con- lier from a unit. figuration or prefer to name the file yourself, use • the “Get As” button. It can also be from a Dataradio (factory or system engineering) diskette. 4.4.2.2 “Get As” button 4- Select the appropriate file On the menu bar, select “File”, then the “Get...
Gemini 's firmwares resides in flash EPROM The Dataradio supplied password algorithm is and are designed to allow field upgrades. designed to thwart the casual observer only. It provides a limited form of data privacy. There- When contacting your supplier, give the full ban- fore, if your security requirements are high, Da- ner string and the version of the WinRIS used.
4.4.5.4 RSSI & Power Out Indicators 4.4.5.2 CTS signal is High indicator The Radio Signal Strength Indicator (RSSI) bar The “Clear-to-Send” (CTS) indicator light, lo- graph usually displays in twin-columns the rela- cated on the button bar (second indicator from tive strength (in dBm) of an incoming RF signal the left), is an RS-232 protocol port indication.
2- Press the Ping button to start ping testing. <5% of forward power or as specified by System Eng.). The functions of all the other buttons are inop- erative during pinging. 4.4.5.5.2 Modulated Carrier The program sends a test query and continues transmitting pings at brief intervals.
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viewing the description of the toolbar button command you wish not to execute the command, then release the mouse button while the pointer is off the toolbar button. Warning and Caution messages appear in pop-up sub-windows. To close these message boxes, press the ESC key.
5. Trouble-Shooting and GPS Test Testing About three minutes after ignition is turned-on, the PWR LED on the Gemini front panel The checks described below should be done at should flash in amber color at the rate of one annual intervals or whenever deterioration in per- pulse per second.
Table 5 - Tests, Full & Half Channel Units CHECKLIST EXPECTED RESULTS at 25° ° ° ° C STEP ACTION 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 as per Table 1 - GeminiPD LEDs indications Sequence...
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Aux Receiver Refer to factory technical same as step 7 WinRIS bar graph support. repeat as per step 7 1 (unless you have set a lower value). Note that readings less than 40 watts (UHF model) or 35 watts (800MHz model) may be due to losses in cables used for testing.
6. Specifications GENERAL 800 MHz Frequency Tx 806 – 824 MHz (821-824) 403 - 512 MHz Frequency Rx 851 – 869 MHz (866-869) 403 - 512 MHz Channel spacing 12.5 or 25 kHz Frequency Control Digital Synthesizer / uController Frequency Stability 1.5 ppm Operating temperature -30°C to +60°C (25°C nominal) @ 95% non-cond.
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(for < 1% error) better than –109 dBm at 25600 b/s full channel, with P/D (SRRC4FSK – 800MHz)* Protocol Dataradio Proprietary DBA * Networks must use common modulation, bit and baud rates. Different types are not on-air compatible DISPLAY and CONTROLS...
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”...
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