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GeminiG3 Mobile Data Radiomodem User Manual - Version 3.01 The entire contents of this manual are copyright 2006, 2007,2008 by Inc. DATARADIO Copyright Inc. DATARADIO February 2008 Part no.: 120 20131-301...
1.2.1 and Table 1 - On-Air Data Speeds & Modulation • Restructures Section 4:Operation & Configuration • Updates screen captures in Sections:4.7.1.1, 4.7.1.2, 4.7.3.3, and 4.7.7.4 Version 2.02, January 2007 • Supports EDBA v2.1 • Rectifies typo on “About Dataradio” paragraph 120 20131-301 Gemini G3 – User Manual...
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• Revises RX sensitivity in Section 6 “Specifications” Version 2.00, September 2006 • Initial release of common version of Dataradio GeminiG3 UHF / 700 / 800 MHz mobile data radiomodem User Manual. Version 1.01a, April 2006 • Change of descriptive terminology from a specific “type of connection”...
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• Revision of “Feature” list to reflect terminology used in “Speci- fications” section. Version 1.00, December 2005 • Initial release of Dataradio GeminiG3 – 700 MHz, User Manual. 120 20131-301 Gemini G3 – User Manual viii...
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From mobile data systems and radio modems, to analog radios and telemetry devices, Dataradio products are found at the heart of private wireless networks around the world.
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(Global Positioning System) signals from the mobile unit by the Host PC. Communication hub for users to connect to a LAN. Access Point Agile Dual-Band. Gemini G3 model that allows 700/800MHz automatic band switching capability during roaming. Advanced Encryption Standard - Uses 128-bit encryption to secure data.
Network speed A network junction or connection point, typically a computer or work station. Node Dataradio’s Optimized IP – Compresses TCP and UDP headers, and filters un- necessary acknowledgments. This makes the most use of the available band- width. Over-The-Air - Convention for the transmission and reception of application- related information in a wireless communications system.
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Upgrade Universal Resource Locator - The address of a file located on the Internet. Vehicular Information Solutions. Dataradio’s name for a series of products spe- cially designed for mobile data. A MS-Windows 98 or MS-ME utility that displays the IP information for a par- WINIPCFG ticular networking device.
1. PRODUCT OVERVIEW This document provides the information required for the installation, operation, and verification of the Dataradio® GeminiG3™ wireless radiomodem. 1.1 Intended Audience This document is designed for use by engineering design, installation, and maintenance personnel. 1.2 General Description Available in 700 MHz, 800 MHz, or UHF and in 700-800 MHz Agile Dual-Band (ADB) model, GeminiG3 is a mobile radiomodem aimed at the public safety and public utility markets.
Additionally, for ease of maintenance or upgrades, all unit firmware can be re- programmed over-the-air. • Diagnostics combined with the Dataradio optional SNMP-based Network Management Sys- tem (NMS) package, gives network administrators a proactive tool to collect and analyze di- agnostic information.
Note: The department handling field deployment for Dataradio Corporation (Atlanta-based) is re- ferred to as “System Engineering” while the equivalent department at Dataradio Incorpo- rated (Montreal-based) is referred to as “System Solutions”. For the purpose of this manual, and to avoid confusion, we shall use the generic Dataradio system engineering.
Replacement Parts This product is not field-serviceable, except by the replacement of a complete unit. Specialized equip- ment and training is required to repair the processor and radio boards. Contact Technical Support for service information before returning equipment. A Technical Support representative may suggest a solution eliminating the need to return equipment.
Installation Planning the Installation 2.1.1 Overview To ensure trouble-free, efficient installation, start by inspecting the vehicle to determine the optimum po- sition for GeminiG3 unit and its antennas as well as the routing of all associated cabling and wiring. 2.1.2 Location Often, installations in cars are done in the trunk, underneath the back window ledge or on the trunk floor.
Warnings Before starting installation, review all of the following warnings. 2.2.1 RF Radiation warning 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.
Physical Unit 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 fre- quency of the radio.
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.
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.
• In installations equipped with a “ChargeGuard”, connect to the controlled-side of the Char- geGuard (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.
2.5.2 Planning Referring to Figure 5, the GeminiG3 radiomodem commonly uses three separate antennas: • “T” - Main transceiver - Constraints are the limit of 50 cm (see section 2.5 above) and omni-directional factors • “R” - Auxiliary receiver – Constraints are the receiver spacing of at least 5/8 λ...
2.5.3 Antenna Installation 1. Route good quality 50-ohm coaxial cables (e.g. RG-223) from each of the selected antenna posi- tions to the position where the GeminiG3 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. Operating Description Front & Rear Panels The front panel includes: • One female antenna connector for the auxiliary receiver • One SMA type female connector for the GPS receiver • Three LED indicators • Two DE-9F RS232 ports • One Ethernet 10/100BaseT port •...
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Table 2 - G3 LEDs indications G3 LEDs indications Power-on Sequence (LEDs are paired) PWR / PGM RX / TX Indication GeminiG3 Off Solid Red Boot in progress Blinking Red on Black RAM or Self Test Error (3 short red) Blinking Red on Black Unable to proceed to next boot step...
In the descriptions of data signals, the following conventions are used: Table 4 - RS-232 Signal Levels Term Signal level Alternates asserted, spacing +3 to +15 V -3 to -15 V dropped, marking 120 20131-301 Gemini G3 - User Manual...
It can be accessed at all times by clicking the Help icon. The remaining buttons on the bottom of the Navigator frame are used to save your con- figurations and reset the unit. 120 20131-301 Gemini G3 - User Manual...
For subsequent access to the GeminiG3 unit, use the User Name and Password that you will have configured. Notes: User Name field can be left blank. It only serves to identify the person gaining access. Password is common and affects all User Name entries. 120 20131-301 Gemini G3 - User Manual...
A “Station Reset” 20-second timer counts down while the status reports: “Working…” When done, the status reports: “Ready”. At any time, click the Help Icon in the navigation pane to open a help text relating to the window be- ing displayed. 120 20131-301 Gemini G3 - User Manual...
Normally displays “Ok” in the message area. Displays various warnings or messages in the event of hardware failure, Unit Status If indications persist, have the status information handy if contacting Dataradio sup- port. Acknowledge Unit Status Press this button to clear the Unit Status message area.
4.7.1.2 Radio Info Provides pertinent radio information retrieved from the connected GeminiG3 unit. Have this informa- tion handy if contacting Dataradio support. Figure 13 - Maintenance - Radio Personality Item Description Model Number Identifies the model of radio module installed...
Station name identifier – Enter string up to forty characters in length Factory default ID is zero. To prevent collision and to minimize interference from re- mote systems that may be present on the same frequency, Dataradio recommends System ID changing the System ID to some other value unique to each network.
For socket connection modes (TCP active, UDP), set to any value between 1 and 65535. Remote IP Port Default local port value is 23 and can be changed dynamically. Status Can be UP, READY, or DOWN. Click on the Refresh button to update Status condition. 120 20131-301 Gemini G3 - User Manual...
Ethernet Interface MTU - Default 1500. – For optimal performance, set at 1500. Flexibility of using lower values may be useful in testing or for particular operational conditions. If a lower value is used, Dataradio suggests that the value present in Setup Advanced RF (IP) in the RF MTU dialog box be also changed to match the LAN MTU value.
4.7.3.2 Setup (Advanced) ► RF (IP) At the time of manufacture, each Paragon3 base station and Gemini G3 radiomodem is provided with a unique MAC address for its Ethernet and RF interfaces. These addresses cannot be changed. The RF interface is also provided with a unique Factory RF IP address. If this IP address conflicts with any existing IP network, it can be overridden.
4.7.3.3 Setup (Advanced) ► RF (Freq.) ► Radio Table Set Up Each Gemini G3 unit is provided with 32 internally stored over-the-air programmable channels. Use the table below to set up RX and TX frequencies for each channel. Figure 19 - Radio Table Set Up Note: Exercise caution when entering RF frequencies.
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(6.25 KHz for 700/800 MHz frequency ranges or 5, 6.25, or 10 KHz for UHF frequency ranges). Dataradio recommends (in North America) offsetting the TX column frequency by +30 MHz for 700MHz frequency ranges, by –45 MHz for 800 MHz frequency ranges, or by ±...
Gateway address handed out by the DHCP Server to the DHCP Client. The default Gateway value is set to the IP address of the Ethernet interface. If the gateway is set to 0.0.0.0, no gateway address will be handed out by the DHCP Server. 120 20131-301 Gemini G3 - User Manual...
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Trap reporting. Management Information Base -used to assemble and interpret SNMP messages. The Dataradio Paragon3 MIB is bundled with each unit's firmware. Click "Down- load mibs.zip" and a pop-up dialog box will appear in your browser asking you to MIBS open or save the file to your PC.
NAT does a lot more than simple translation of the IP source address. NAT also carries out IP proto- col dependant translation. For UDP and TCP protocols, NAT will also translate the source port num- bers. Special handling is also done for other more specific protocols like FTP. 120 20131-301 Gemini G3 - User Manual...
GeminiG3 MIB File Each GeminiG3 unit firmware package is bundled with three MIB files (found inside mibs.zip file): • dataradio-regs.mib: contains a top level set of managed object definitions aimed at managing Datara- dio products. • 1213.mib: contains a set of managed object definitions aimed at managing TCP/IP-based internets.
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To view the hierarchy of SNMP MIB variables in the form of a tree and view additional information about each node, Dataradio recommends opening all MIB files with a MIB browser. In a MIB browser, each object (or node) can be selected and its properties (including its OID) can be observed. For simple networks, a basic, free application such as ”iReasoning MIB browser”...
It is strongly recommended to access mobiles’ diagnostics and statistics through the Mobile Ta- bles on the base stations and to only use gcu3.mib for trap reporting. For more details on Network Management using SNMP refer to Dataradio Network Management using SNMP User Manual (Part no. 120 47001-nnn)
"LAN". When "Multicast Forwarding" mode is enabled and some multicast groups are specified in the "Multicast White List", only the multicast packets identified in the list are passed to the "LAN". 120 20131-301 Gemini G3 - User Manual...
If directed broadcast packets can be forwarded (Directed Broadcast is enabled): Forwards the packet according to the routing table. • If directed broadcast packets cannot be forwarded (Directed Broadcast is disabled): Silently discards the packet. 120 20131-301 Gemini G3 - User Manual...
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In this example (Figure 33), directed broadcast forwarding is enabled on the Base unit and on Mobile (1) unit. If Sender wants to reach Mobile Host (1), Mobile Host (2) and Mobile Host (3) with a sin- gle packet, he can send to destination address 172.30.1.255. 120 20131-301 Gemini G3 - User Manual...
Sends a copy of the packet out to all the interfaces with the exception of the interface where the packet was received. • If limited broadcast packets cannot be forwarded (Limited Broadcast is disabled): Silently discards the packet. 120 20131-301 Gemini G3 - User Manual...
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Mobile Host (4) with a single packet, he can send to destination address 255.255.255.255. Notice that Sender and Base units are on the same LAN (routing equipment does not usually forward limited broadcast packets). 120 20131-301 Gemini G3 - User Manual...
If the user wants the Base unit to do the discarding of the limited broadcasting packets, then the lim- ited broadcast forwarding must be disabled on the Base unit itself. Then no Mobile Host unit would ever be receiving a limited broadcast packet. 120 20131-301 Gemini G3 - User Manual...
Receiver 3 (member of 226.1.2.3) (member of 226.1.2.3) Receiver Receiver Receiver 2 (not a member of 226.1.2.3) (not a member of 226.1.2.3) (member of 226.1.2.3) Figure 38 - Reception of multicast packets (Second step) 120 20131-301 Gemini G3 - User Manual...
“All Base” group RF Air- “All Mobile” group Mobile Mobile Mobile Mobile Mobile Mobile Mobile Mobile Mobile Mobile “Mobile Host” group 1 “Mobile Host” group 2 Figure 39 - Typical E-DBA Multicast Groups 120 20131-301 Gemini G3 - User Manual...
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Mobile (G3) Mobile (G3) Mobile (G3) Mobile Host Mobile Host Mobile Host Mobile Host Mobile Host “Mobile Host” group 1 “Mobile Host” group 2 (224.168.200.1) (224.168.200.2) Figure 41 - Typical E-DBA Multicast Groups (with addresses) 120 20131-301 Gemini G3 - User Manual...
Time in seconds since Jan 1, 1970 00:00:00. SNTP UTC Time Note: the correct local time is displayed in the "Unit Status" page. TimeZone Select from drop-down list Time Zone Daylight Savings Disabled (Default), Enabled 120 20131-301 Gemini G3 - User Manual...
4.7.4 GPS All GeminiG3 radiomodems shipped from the Dataradio factory are fitted with a 12-channel high ef- ficiency GPS receiver, equipped with WAAS feature for better location precision (<3 meters). GPS "strings" are collected from embedded GPS receiver in the GeminiG3 mobile radiomodems. The strings are converted into DCF 2.0 ("Dataradio Compressed Format, version 2.0") reports and pro-...
4.7.4.2 GPS ► Delivery Options Figure 46 - GPS - Delivery Options (Initial screen on left - screen with 2 UDP Hosts on right) 120 20131-301 Gemini G3 - User Manual...
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Dynamic window expands as Hosts are added or shrinks as Hosts are deleted as shown on the right in the above illustration. For more information on GPS data collection please contact Dataradio System Engineering. 120 20131-301 Gemini G3 - User Manual...
At most, the vehicle sends a position update every time this interval, in seconds, has elapsed. At least (*10) seconds be- tween reports The main purpose of this parameter is to protect the network from being overloaded by excessive AVL reporting from one or a few mobiles. 120 20131-301 Gemini G3 - User Manual...
New Password CAUTION: Do not lose the new password or you will not be able to gain access to the unit; you will need to contact Dataradio for support as detailed in section 1.3 earlier. New Password Re-enter the new password string...
Number of E-DBA packets received over-the-air with errors that could not be cor- Packets not correct rected . These packets were discarded. Note: For Transport (TCP/UDP) and Network (IP) interface layers statistics refer to MIB 1213. 120 20131-301 Gemini G3 - User Manual...
Figure 50 - Maintenance Ping Test Item Description Enter IP address Enter IP address in dot decimal format This button executes the ping command. Ready field displays the out- Execute come of the ping command. 120 20131-301 Gemini G3 - User Manual...
Important note: Activating “ Restore Factory Settings” will reset the IP address of the unit. Have your record of all the original GeminiG3 unit factory settings handy before proceeding with restoring to factory settings. 120 20131-301 Gemini G3 - User Manual...
Package Control Figure 52 above shows a “Pass” result indication. If an upgrade problem arises and persists, click the “Package Control” once more and have the resulting indications handy if contacting Dataradio system engineering. 120 20131-301 Gemini G3 - User Manual...
4.7.7.4 Maintenance ► RF Tests Figure 53 - Control - RF Tests 120 20131-301 Gemini G3 - User Manual...
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Main Cal = Calibrated dBm value from main receiver DSP RSSI Table Diversity Raw = Diversity raw dBm value from diversity radio Diversity Cal = Calibrated dBm value from diversity receiver DSP Range -120 to –40 dBm Thresholds -90 to -60 dBm 120 20131-301 Gemini G3 - User Manual...
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Random Data test for checking low-frequency balance and maximum deviation over data. Random data test requires the use of an IFR COM-120B service monitor with option 03= 30kHz IF filter and its DC coupled demodulator output selected. 120 20131-301 Gemini G3 - User Manual...
Site Map Pages on the site and provides a short description where applicable. Click the Help Icon in the navigation pane to open a help text relating to Help Icon the window being displayed. 120 20131-301 Gemini G3 - User Manual...
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 120 20131-301 Gemini G3 - User Manual...
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(Unless you have set a lower value). Note that readings less than 40 watts (UHF model), 27 watts (700MHz model) and 35 watts (800MHz 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 20131-301 Gemini G3 - User Manual...
1 pulse per second (amber on green) on the GeminiG3 unit indicating that a position is ac- quired. If no position acquisition occurs, the modem and/or its GPS receiver may be defective. The User’s Interface GPS Web Pages are located starting at paragraph 4.7.4. 120 20131-301 Gemini G3 - User Manual...
Available for MS-Windows 9x, ME, NT, 2000, and XP. EXAMPLE arp -a displays all entries in the ARP cache. Useful in manipulating ARP caches. • ROUTE View and update the system routing table 120 20131-301 Gemini G3 - User Manual...
Note: After resetting, the PWR LED remaining lit steady amber or red indicates the FTP transfer was not successful or that the firmware is corrupt. Please contact Dataradio system engineering for as- sistance. 120 20131-301...
If the message in the result screen points out that file(s) failed the integrity check, retry the FTP transfer for the failed files(s) again. If the problem persists, please have the Package Control result screen indications handy and contact Da- taradio system engineering for assistance. 120 20131-301 Gemini G3 - User Manual...
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7K92 F1D (D) 10K0F1D(H) * Under class 1 permissive change WARNING: The frequency band 406 to 406.1 MHz is reserved for use by distress beacons and should not be pro- grammed into the unit. 120 20131-301 Gemini G3 - User Manual...
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• The alarm generates an SNMP trap. The trap report is repeated at a factory-set rate (default is 15 sec- onds) for 1 minute. Can also be manually cleared via the MIB Browser. 120 20131-301 Gemini G3 - User Manual...
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GPS “strings” are collected from the embedded GPS receiver in the GeminiG3 mobile radiomodems. The strings are converted into DCF 2.0 (“Dataradio Compressed Format, version 2.0”) reports and provided to both local delivery and remote delivery services. The remote delivery service of the GeminiG3 sends re- ports Out of Band (OOB) in any unused portion of control &...
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Because of E-DBA’s cycle mechanism, a ping packet could take up to 3 cycles to make the round trip, producing an unexpectedly large ping time even when the radio channel is lightly loaded. For this reason, Dataradio recommends that ping should only be used to verify if a device is reachable, not as a measure of network performance.
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E-DBA system's performance, the best metric will always be to test the system in conditions that repro- duce as closely as possible its real-life usage. For example, by using applications similar to wireless CAD systems and the appropriate traffic profile. 120 20131-301 Gemini G3 - User Manual...
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If using Mozilla Firefox v1.5.0.4, select “Tools” in the menu bar and select the “Clear Private Data” op- tion. Alternately, you can use the keystroke combination of “Ctrl+Shift+Delete”. Adjust the above methods according to your browser or to its version number. 120 20131-301 Gemini G3 - User Manual...
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FTP files to upgrade a unit. Ethernet Network Port Setting For GeminiG3 radiomodems, Dataradio recommends setting to half duplex and 10 BaseT. FTP Connection Failure Indication FTP transfer stops on one of the transfer steps and displays a message similar to: >Netout: Connection reset by peer...
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