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Kantronics TALON UDC SERIES User Manual

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KANTRONICS
TALON UDC
SERIES
RADIO MODEM USER MANUAL
Kantronics Co., Inc.
rd
1202 E. 23
Street, Suite A
Lawrence, Kansas 66046
Phone: 785-842-7745
Fax: 785-842-2031
Web: http://www.kantronics.com
DWG ID: 181-0101-00A
Date: 2003-09-26

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Summary of Contents for Kantronics TALON UDC SERIES

  • Page 1 KANTRONICS TALON UDC SERIES RADIO MODEM USER MANUAL Kantronics Co., Inc. 1202 E. 23 Street, Suite A Lawrence, Kansas 66046 Phone: 785-842-7745 Fax: 785-842-2031 Web: http://www.kantronics.com DWG ID: 181-0101-00A Date: 2003-09-26...

  • Page 2: Revisions

    1 REVISIONS Revision Date Description 2003-09-26 Initial release. 2004-01-27 Added information on Input/Output CCA. Page 2 of 101 DWG ID: 181-0101-00A Date: 2003-09-26...

  • Page 3: Table Of Contents

    GENERAL INFORMATION................. 6 Sales/Inquiries......................6 Technical Support ....................6 Miscellaneous ......................6 Disclaimer Notice ....................6 Kantronics Warranty Registration ................6 Important Information..................... 8 License Agreement ....................8 3.7.1 License ........................8 3.7.2 Term........................8 3.7.3 Object Code ......................8 3.7.4 Limited Warranty....................
  • Page 4 TALON UDC UHF....................18 6.1.1 General........................18 6.1.2 Transmitter......................18 6.1.3 Receiver ........................ 18 TALON UDC VHF....................19 6.2.1 General........................19 6.2.2 Transmitter......................19 6.2.3 Receiver ........................ 20 CONNECTOR PINOUTS ..................20 ANT Connector (A1J1)..................20 Dc Power Connector (A2J6)................. 20 Serial I/O Connector (A2J9) .................
  • Page 5 9.5.2 Poll Mode Operation..................... 37 Line Substitution (LINE SUB) Mode ..............40 9.6.1 LINE SUB Mode Protocol Description ..............40 9.6.2 LSUB Mode Operation ..................40 Mode Capabilities Matrix ..................41 CONFIGURATION....................41 10.1 Automatic Vehicle Location (AVL) and Asset Tracking ........42 10.1.1 AVL Used Without a Terminal................

  • Page 6: General Information

    A, Lawrence, KS 66046, or e-mail sales@kantronics.com. Information in this document is subject to change without notice. Contents of this publication or the firmware within the TALON UDC series may not be reproduced in any form without the written permission of the copyright owner.
  • Page 7 UDC series of radio modems to be valid. Both must be on file at Kantronics in order for you to receive warranty service. Refer to the warranty policy in this manual for further information. Mail form and sales receipt to:...

  • Page 8: Important Information

    Licensor Kantronics Company, Inc. (Kantronics) grants (you) a non- exclusive right to use the SOFTWARE and associated documentation. No ownership rights to the SOFTWARE or its Documentation are transferred from Kantronics to you. 3.7.2 Term This License Agreement is effective until terminated. You may terminate this Agreement by returning or destroying the unit and destroying the documentation.

  • Page 9: Other

    3.8.2 REMEDY Kantronics agrees that, for any Applicable Product found by Kantronics to be in violation of the warranty within the Applicable Warranty Period, it will, at its option, repair or replace the defective Applicable Product at no charge to you, excluding in-bound shipping charges.

  • Page 10: Disclaimer

    Repair or replacement of the Applicable Product, as provided herein, is the sole remedy available to you against Kantronics, and in no event will Kantronics be responsible for any other liability or damages or for incidental, special, or consequential damages,...

  • Page 11: Remedy Procedure

    Should you need to make a warranty claim, first contact the dealer from whom you purchased the product. If the dealer is unable to assist you, contact Kantronics Co., Inc.: • By mail at 1202 East 23rd Street, Suite A, Lawrence, Kansas 66046 USA •...

  • Page 12: Check-List For Possible Problems

    • It may be useful to perform a "Hard Reset". If service or repairs still appear necessary after checking the items listed above, it may be wise to call, fax, email, or write Kantronics to determine if the problem can be solved without returning the unit.

  • Page 13: Repair Service Charges

    Consult the limited warranty policy in this manual for the service provisions offered by Kantronics at no charge. This warranty is considered to be in force only when the customer has submitted a completed warranty registration within ten days (10 d) of purchase, and when the stipulations of the warranty have been met.

  • Page 14: International Returns

    In case of unit problems, first contact the dealer from whom the product was purchased. If a Kantronics product must be returned, please observe the steps outlined below. This will prevent unnecessary difficulties and expense for both the shipper and Kantronics.

  • Page 15: Approvals And Compliance

    Warranty Registration card and proof of purchase to Kantronics, and the item(s) must still be within the applicable warranty period at the time the return is authorized.

  • Page 16: Information To The User

    This product complies with part 15 of the FCC rules and regulations. It may not be modified without the expressed consent of Kantronics. Modification of this product could void the user’s authorization to use the product.

  • Page 17: Product Information

    (2) ce dispositif doit accepter n'importe quelle interférence reçue, y compris l'interférence qui peut causer l'opération peu désirée. 5 PRODUCT INFORMATION The TALON UDC series of radio modems are wireless modems using four-level frequency shift keying (4-LFSK) modulation to meet compliance with FCC and other regulations for high-speed data.

  • Page 18: Specification Of Product

    When aligned in accordance with the procedures provided, for proper bandwidth, the TALON UDC series is type-accepted for transmission of data and text. 6 SPECIFICATION OF PRODUCT 6.1 TALON UDC UHF 6.1.1 General FCC Identifier B2FTALON-U FCC Rule Part Canada IC Identifier...

  • Page 19: Talon Udc Vhf

    Operating Bandwidth 20 MHz Sensitivity, for 1 x 10 -115 dBm RF Zin Adjacent Channel Selectivity, minimum 60 dB Spurious and Image Rejection, minimum 70 dB Intermodulation Rejection, minimum 70 dB Conducted Spurious, maximum -57 dBm Receive Attack Time (TX to RX), 15 ms maximum RSSI Squelch Attack Time, maximum...

  • Page 20: Receiver

    RF Z load Attack time, maximum 15 ms Spurious and Harmonics, maximum -20 dBm 5 µs Group Delay Variation (w/in Frequency Response), maximum 6.2.3 Receiver Operating Bandwidth 26 MHz Sensitivity, for 1 x 10 -115 dBm RF Zin Adjacent Channel Selectivity, minimum 60 dB Spurious and Image Rejection, minimum 70 dB...

  • Page 21: Gps Receiver Connector (A2W1J1)

    Terminal Nr Description Digital GND 7.4 GPS Receiver Connector (A2W1J1) MPX female. Mate with MPX male, which is the connector on the end of the transmission line, that is part of the supplied GPS magnet mount antenna. 7.5 Input/Output Connector (A3J1) AI1 AI3 DGND AI5 AI7 DGND DI4 DI2 DGND DO4 DO2 GND AO1 AO3 GND AI2 AI4 DGND AI6 AI8 DGND DI3 DI1 DGND DO3 DO1 GND AO2 AO4 GND I/O (A3J1) CONNECTOR PINOUT...
  • Page 22 Nomenclature Description Analog Input 1, 0 to 5 V dc* Analog Input 2, 0 to 5 V dc* Analog Input 3, 0 to 5 V dc* Analog Input 4, 0 to 5 V dc* Analog Input 5, 0 to 5 V dc* Analog Input 6, 0 to 5 V dc* Analog Input 7, 0 to 5 V dc* Analog Input 8, 0 to 5 V dc*...

  • Page 23: Serial I/O Connector (A3J2)

    DGND DGND DGND DGND 7.6 Serial I/O Connector (A3J2) D-sub 9 female. Mate with D-sub 9 male. Terminal Nr Description Digital GND 8 PACKET RADIO 8.1 Packet Radio Description AX.25 was developed many years ago as a way of transferring data from one place to another, through standard types of two-way radio equipment.

  • Page 24: A Simple Connect

    acknowledgment is not received, the data will be re-sent (depending on the setting of the AX25L2V2 command, it may send a poll first). The RETRY parameter will determine how many times this is done before the connection is aborted due to bad conditions. When acknowledgment is received, more data can then be sent.

  • Page 25: Monitoring

    Its default setting is the ENTER or RETURN key. Whenever that key is pressed, a new packet will be transmitted. A second command called PACLEN determines the maximum number of characters to include in a transmitted packet. When the number of typed characters is equal to the number defined by PACLEN, a packet will be made and transmitted even if the ENTER key has not yet been pressed.

  • Page 26: Selective Monitoring

    This “local” display is output from the serial port of the TALON, for use by an attached computer. This computer may be running its own data recording program or displaying this unit’s position on a map. 8.5 Selective Monitoring With MONITOR ON, the BUDLIST command can be used to limit the display of monitored packets from other stations, to only those packets specifically FROM (or TO, or both) a specific station or any of up to 10 callsigns listed.

  • Page 27: Advanced Digipeating

    respond that it received the packet, by returning an acknowledgement packet by the same path to the original station. This is often called end-to-end acknowledgment. To send unconnected type packets like broadcast messages or BEACONs VIA a digipeater, the UNPROTO command is used to set the path, UNPROTO ALL VIA DIGI3 An advanced type of digipeater function for UI (unconnected-information) is also available, configured by its own set of commands.

  • Page 28: Multi-Connects

    The current setting of UIDWAIT determines whether or not a delay is added to UI digipeat packets (those formed by UIDIGI or UIFLOOD) before transmission, once the channel is clear. If UIDWAIT is ON, the delay is determined by SLOTTIME and PERSIST settings.

  • Page 29: Timing

    To change streams, to make another connect or to direct data to another connected station on a different stream, type the STREAMSW character, and the letter designation of the desired stream. No return or enter key is necessary. The setting of STREAMEV will then determine how often the stream designator is displayed with received data.

  • Page 30: Retries In Ax.25 Level 2, Version 1 Vs. Version 2

    require more time to be transmitted, more time to be repeated by the digipeater, and so on down the line. The FRACK timer begins when the packet has been sent and is suspended when data carrier from the radio is present, or when your station is transmitting. 8.11 Retries in AX.25 Level 2, Version 1 vs.

  • Page 31: Flow Control

    also cause the TNC to exit TRANSPARENT mode, as long as its command BREAK has not been set to OFF. 8.13 Flow Control Both the computer and the TALON have fixed amounts of input (and output) buffer space. Flow control prevents the loss of data in communication between the computer and a TALON.

  • Page 32: Protocol Descriptions

    Selecting the first line, the return entry would be: aacBDB Upper and lower case characters must be entered exactly the same as they were in RTEXT, numbers and spaces also count as a character. Up to 128 characters can be entered in the RTEXT string.

  • Page 33: Host Mode Description

    9.2.1 Host Mode Description The HOST interface mode provides a way of having more control of the TALON. A specially written program, that communicates with the TALON in a “framed” data mode, can make operation easier and with more functionality than when using a simple terminal program or “dumb”...

  • Page 34: Kiss Mode

    9.3 KISS Mode 9.3.1 KISS Mode Description KISS mode is also a “framed” data mode, similar to HOST. However, when in KISS mode the TALON becomes just a packet assembler/disassembler (PAD). In the KISS Mode, the TALON simply passes all received data to the computer in a KISS frame, and the computer program is responsible for all processing of that data, including decisions concerning routing, Digipeating, and other control decisions.

  • Page 35: Transparent Unproto Packet (Tup) Mode

    255 from the number key pad on the right side of the keyboard, and then releasing the ALT key. A small plain-text file (called EXITKISS.TXT), containing these characters can be found on the CD accompanying the TALON. Again, make sure that the terminal program is set to the correct interface baud rate.

  • Page 36: Tup Mode Operation

    digipeater and the response, if any, to travel back to the host. Note that the automatic "Time to Live" timer and the TUPTIME timer are only in effect if packets are being digipeated. 9.4.2 TUP Mode Operation 9.4.2.1 Commands Used Basic TUP Operation involves just a few commands: MYCALL - The MYCALL command determines the MODEM address.

  • Page 37: Poll Mode Protocol Description

    9.5.1 Poll Mode Protocol Description The POLL mode is generally used in system applications that implement a polled- response protocol between a central site (Control Site) and one or more remote locations (Remote Site). The POLL mode is similar to the TUP mode since it uses a data transparent broadcast mode and a packet protocol with CRC-16 error checking to insure the integrity of the received data.
  • Page 38 Control Site Receive Format - All Remote transmissions received by the Control modem shall consist of the Remote POLLID followed immediately by the Remote data. Both POLLID and data will be sent to the control DTE via the RS-232 port. 9.5.2.1.2 Remote Site Remote Site Configuration - The POLLID command in each of the Remote modems must be set to a different number between 0001 and 9999.
  • Page 39 If CONMODE is set to TRANS, data will be transmitted when: PACLEN is exceeded, or PACTIME expires. 9.5.2.1.3 Suggested Settings Usually, the CONMODE command is set to TRANS and the PACTIME command is set to AFTER 1. The CONMODE TRANS command makes the modem data transparent to the Remote device.

  • Page 40: Line Substitution (Line Sub) Mode

    If CONMODE = TRANS Use the transparent data escape sequence, i.e.; send a series of three control-Cs (unless a different control character has been defined). (See TRANS command in the Reference Manual). 9.6 Line Substitution (LINE SUB) Mode 9.6.1 LINE SUB Mode Protocol Description The LSUB mode of operation provides a method of transmitting-and receiving raw ASCII data via a radio.

  • Page 41: Mode Capabilities Matrix

    If you want to exit LSUB mode to "fine tune" parameter settings (or for any other reason), the Command mode of the modem can be regained by using the transparent data escape sequence, i.e., by sending a series of three control-Cs (unless a different control character has been defined).

  • Page 42: Automatic Vehicle Location (Avl) And Asset Tracking

    Note: Issue the PERM command to store the changes you have entered. You should do this after each entry so that information is not lost if the unit loses power or is somehow reset. Note: See TALON COMMAND SET section for explanation of commands. 10.1 Automatic Vehicle Location (AVL) and Asset Tracking 10.1.1 AVL Used Without a Terminal Set gb (GBEACON) parameters.

  • Page 43: Data/Telemetry/Scada/Text

    10.3 Data/Telemetry/SCADA/Text For sending and receiving information (data, text) over the Serial I/O (RS232) port see the Modes section. For SCADA probably just need transparent data, which several of the available modes can do: LSUB—point to point, no addressing, broadcast, no acknowledgment of data. TUP—broadcast data, Packet headers, and can be digipeated.

  • Page 44: Gps Antenna

    Method of mounting is left to the customer. For best heat dissipation the finned heat sink on rear of unit should be vertical for natural airflow. Do not exceed the maximum operating temperature. An optional mounting kit is available. Please call Kantronics. 11.6 Input/Output Page 44 of 101...

  • Page 45: Input/Output Serial I/O

    The Input/Output connector, A3J1, at the top left of the front panel, for units with an I/O CCA, is for analog and discreet inputs and outputs. See § 7 for pinout and connection details. 11.7 Input/Output Serial I/O serial I/O connector, A3J2, at the top right of the front panel, for units with an I/O CCA, is for RS232 communications, normally with a PC.
  • Page 46 narrow enough to filter out the spurious responses of the first frequency converter, while wide enough to support a performance bandwidth of 26 MHz. 12.1.1.2 1 Frequency Converter, 1 IF Filters, and 1 IF Amplifier IC101 is an active double-balanced frequency converter, which converts the incoming RF signal to the first intermediate frequency (IF) of 43.65 MHz.

  • Page 47: Transmitter

    12.1.1.6 VCO and Synthesizer The synthesizer is responsible for generating the carrier in transmit and the first local oscillator in receive. A voltage-controlled oscillator (VCO) is an oscillator whose frequency can be controlled by an external signal. The synthesizer, almost wholly contained within IC109, divides the VCO frequency by digital dividers and compares the result with an accurate reference.

  • Page 48: Miscellaneous Functions

    When driven by +13 dBm, the PA module is capable of producing 6 W or more of power at the antenna connector. Pin 2 of the module is used for power control. The output power level can be varied from less than 0.5 W to full power by changing the voltage at this pin.
  • Page 49 are narrow enough to filter out the spurious responses of the first frequency converter, while wide enough to support a performance bandwidth of 20 MHz. 12.2.1.2 1 Frequency Converter, 1 IF Filters, and 1 IF Amplifier IC101 is an active double-balanced frequency converter, which converts the incoming RF signal to the first IF of 43.65 MHz.

  • Page 50: Transmitter

    filter the output such that only the third harmonic remains for use as the 2 local oscillator. 12.2.1.6 VCO and Synthesizer The synthesizer is responsible for generating the carrier in transmit and the first local oscillator in receive. A voltage-controlled oscillator (VCO) is an oscillator whose frequency can be controlled by an external signal.

  • Page 51: Miscellaneous Functions

    12.2.2.2 PA Module, Low-pass Filter, and T/R Switch When driven by +17 dBm, the PA module is capable of producing 6 W or more of power at the antenna connector. Pin 2 of the module is used for power control. The output power level can be varied from less than 0.5 W to full power by changing the voltage at this pin.
  • Page 52 If J8 is jumped the system will come up in the Maintenance Program mode, when turned on, where the frequency of operation is set and various transmit and receive levels are adjusted and set. If J8 is not jumped, then the system will come up in its Operation mode.

  • Page 53: Gps Receiver, A2A1

    potentiometer also varies this dc-offset level. Thus there is an interaction of the dc levels when adjusting the RX GAIN and RX ADJ 2.5 V. The received signal and dc offset at the modem IC RXFB terminal, U3-23, is adjusted for a 1 V pp signal and a dc offset to match the VBIAS dc level at U3-21.

  • Page 54: Talon Command Set

    Nomenclature Description Analog 0 to 5 V dc, high Z of protection op-amp. Jumper inputs selectable 249 c, 1-% resistor is included for 2-wire or 3-wire, 0 to 20 mA dc input. Protection op-amp limits voltage to YP 10-bit A/D converter to 4.950 V. Discreet 5 V CMOS logic inputs to YP.
  • Page 55 default ON This command is used to accommodate terminals that use only 7-bit ASCII characters, and will not receive (or would be confused by) 8-bit characters. Also, it might be that your computer is capable of handling 8-bit characters but your communications terminal program will reject (or be confused or “hung”) by them.
  • Page 56 At any given time, each of the 8 A-to-D lines will have a voltage value somewhere in the range of 0 - 5 V dc. Instead of reporting voltages, the ANALOG command returns a decimal number in the range of 0 - 255 (or a decimal number in the range specified by the RANGE command) for each analog input.
  • Page 57 entire packet until it receives an acknowledgment or will disconnect if the RETRY count is reached. Version 2 will first send a poll, the response to this poll will determine if the packet was received. It is possible that the ack was collided with and therefore the data packet does not need to be resent.
  • Page 58 If BREAK is ON, a modem break from the terminal causes a return to Command Mode from Converse or Transparent Mode. See also: COMMAND BTEXT text (up to 128 characters) default (blank) BTEXT specifies the content of the data portion of the beacon packet. Any combination of characters and spaces may be used with a maximum length of 128.
  • Page 59 entering ”callsign1<>callsign2" will enable monitoring of all packets between callsign1 to callsign2 and vice-versa. Note that entering callsign1>callsign2 or callsign1<>callsign2 counts as two of the 10 maximum allowed callsigns. CANLINE n (n = $00 - $FF) default $18 <Ctrl+X> This command defines the cancel-line input editing command character. When in Convers or Command Mode entering this character will cancel all characters input from the keyboard back to the last un-PASSed carriage return (unless PACTIME has expired, CPACTIME is turned on, and you are in Convers Mode).
  • Page 60 See also: ax25l2v2, relink, rnrtime CHFREE EVERY [[hh:]mm:]ss START [[hh:]mm:]ss [FOR [[hh:]mm:]ss] default EVERY 00:00:00 When slotted beaconing is used for GPS, CHFREE can specify when the channel will be free for other transmissions. See also: GBEACON CMDTIME n (n = 0 - 15) default 1 This command sets the time allowed for entry of required characters to exit the Transparent Mode.
  • Page 61 default OFF When OFF, the custom connect text stored in CTEXT will not be sent to the connecting station upon receiving a connect request. When ON, the custom CTEXT string will be sent. When CMSG is set to DISC, the custom CTEXT string will be sent to the connecting station, and then your TALON will disconnect from that station.
  • Page 62 default CONVERS This command controls the communication mode the TALON will be placed in AUTOMATICALLY after a connect, if NOMODE is OFF. A connect may result either from a connect request received or a connect request originated by a CONNECT command.
  • Page 63 default ON When ON, connect requests from other TALONs will be automatically acknowledged and a <UA> packet will be sent. The standard connect message, with stream ID if appropriate, will be output to the terminal and the mode specified by CONMODE will be entered on the I/O stream if you are not connected to another station and NOMODE is OFF.
  • Page 64 CPACTIME {ON | OFF} default OFF When OFF and in the Convers Mode, packets are sent when the SENDPAC character is entered or when PACLEN is achieved. When ON and in the Convers Mode, packets are sent at periodic intervals determined by PACTIME. Characters are sent periodically as in Transparent Mode but the local editing and echoing features of Convers Mode are enabled.
  • Page 65 CTEXT text (0 - 128 characters) default (blank) Enter any combination of characters and spaces up to maximum length of 128. Entering a single ‘%’ will clear CTEXT. This entry specifies the text of the first packet to be sent in response to an accepted connect request provided that the parameter CMSG is not set to OFF.
  • Page 66 CWIDTEXT text (up to 15 characters) default mycall This command sets the text to be transmitted when the TALON performs an automatic CWID. The text will be transmitted at the interval specified by the CWID command. See also: cwid DAYSTR text default mm/dd/yyyy hh:mm:ss The DAYSTR command is used to set the display FORMAT of your date/time display.
  • Page 67 DAYTIME yymmddhhmm[ss] (UTC time) DAYTIME is used to manually enter a date and time (after which time and date are formatted for display by the specifications given in DAYSTR). When date and time are entered, using the input format specified in the command and explained below, the values entered are used to set the software clock/calendar.
  • Page 68 See also: disconnect DELETE n (n = $00 - $FF) default $08 <Ctrl+H> This command defines the character to be used as the delete character. When this character is typed, the last input character is deleted. The most common settings are $08 (backspace) or $7F (delete).
  • Page 69 DISPLAY [{ A | C | G | I | L | M | T }] Immediate This command (when entered alone) causes the TALON to display a list of all the current parameter settings in the TALON. A subset of this list will be displayed by specifying a class identifier for a group of command parameters.
  • Page 70 See also: persist, slottime ECHO {ON | OFF} default ON When ON, characters received from the computer by the TALON are echoed back and displayed. If you are receiving double print of characters entered at the keyboard, turn this command OFF. This corresponds to the setting in your terminal program for duplex. If your program is set for full duplex set ECHO ON.
  • Page 71 FLOW {ON | OFF} default ON When FLOW is ON, any character entered from the terminal will halt output to the terminal until the current packet or command is completed (by SENDPAC, PACLEN, or PACTIME). Canceling the current input to the TALON or typing the REDISPLAY-line character will also cause output to resume.
  • Page 72 until the specified time. Thereafter, the beacon will be transmitted according to the setting of the EVERY parameter. (NOTE: If the current time is past the start time, the beacon will start at the next scheduled interval based on the start time.) For example, setting GBEACON EVERY 00:15:00 START 00:05:10 would cause the location beacon to be transmitted every 15 min, with the first transmission each day occurring at 00:05:10.
  • Page 73 must be preceded and followed by a dollar sign ($) and must be in upper case. The following variables are allowed: $GPRMC, $GPGLL, $GPGGA, $GPVTG, CHKSUM, LAT, LONG, UTC, OFFSET, DATE, ESPD, NSPD, USPD, SOG, TRACK, ALT, NUMSAT,TEMPC,TEMPF. For example: GTEXT Latitude: $LAT$, Longitude: $LONG$ $GPRMC, $GPGLL, $GPGSA, and $GPVTG, are all valid NMEA 0183 type sentences.
  • Page 74 HEADERLN {ON | OFF} default ON When ON a carriage return is output to the terminal between the header and text of monitored packets. This causes the packet header and time stamp (if on) to be displayed on one line, with the packet text displayed below it on the next line. When receiving packets addressed only to you (MONITOR and/or MCON OFF) this parameter does not apply.
  • Page 75 TALON that communicates in KISS mode. See the KISS mode section for more information. When set to HOST, the serial port communication is in the Kantronics HOST mode. This requires a special program or driver in the computer attached to the serial port of the TALON that communicates in HOST mode.
  • Page 76 Immediate This single letter command is synonymous with CONVERS. It is included as a single- keystroke convenience for entering Convers Mode. See also: convers LFADD {ON | OFF} default OFF When ON, a line-feed will be appended to every carriage return received from the keyboard before being transmitted.
  • Page 77 callsign on the list (if there is not, the TALON responds with “EH?” and returns you to the command prompt). Similarly, you can remove a single callsign (-callsign) from the list. And to remove all items from the current list, enter LLIST NONE. A callsign entered without a SSID will match any SSID of that callsign.
  • Page 78 This command causes the TALON to allocate the memory required for the maximum number of simultaneous connections you wish to allow. Each connection uses a different stream. In order to direct what you want to say to a different stream you use the STREAMSW character.
  • Page 79 <UI> Unconnected Information frame <Is> Information frame (connected); s = send sequence number See also: ax25l2v2, monitor, and mresp For details on control packets, see the book AX.25 Amateur Packet-Radio Link-Layer Protocol Version 2.0 October 1984, available from the ARRL. MCON {ON | OFF} default OFF When OFF, and connected, the TALON will display only those packets addressed to you.
  • Page 80 Whenever PASSALL is ON, packets will not be checked for errors and no additions will be made to the MHEARD list. If the C option is used, the list is cleared. See also: daytime, passall MHEADER {ON | OFF} default ON When ON, the headers are displayed for all monitored packets.
  • Page 81 default OFF When ON, monitored packets include the following AX.25 response packets, if MONITOR and MCOM are ON. If connected, MCON must also be on. The bracketed information will appear at the end of the header information. The “<” and “<<” characters are used to bracket and denote packets received as version 1 or version 2, respectively.
  • Page 82 This command enables time stamping of monitored packets. The date and time information is then available for use for automatic logging of packet activity or other computer applications. The date and time are set initially by the DAYTIME command, and the date format is determined by the DAYSTR command. The MONITOR command must be ON for this command to work, and if connected MCON must also be ON.
  • Page 83 When the TALON is first turned on out of the box, or after a hard reset, it asks you for your callsign – there is no default. The callsign you enter for MYCALL is automatically used to compute other IDs too (CWIDTEXT). Changing MYCALL at the “cmd:” prompt does not affect CWIDTEXT.
  • Page 84 When OFF and a connection takes place, the TALON will change to whatever mode is specified in CONMODE. When ON, the TALON stays in Command Mode after connecting to another station; that is, it does not immediately change to Convers or Transparent Mode.
  • Page 85 For example, if you wish to send a COMMAND character (<Ctrl+C>) as part of the packet, you can do so by preceding it with the PASS character. The command character will be sent rather than returning the TALON to Command Mode. In Transparent Mode all characters are passed, there are no special functions except the one combination to get out of transparent mode.
  • Page 86 odds) of transmitting the data. Through careful choice of these values, it is possible to improve data throughput while at the same time permitting shared channel usage with other packet stations. The persistence algorithm has been added on top of the DWAIT algorithm.
  • Page 87 a voltage with 2 decimal precision, for example, set the range for that analog pin as 0- 5.00. If you connect a temperature sensor to an A/D pin, which outputs 0-5 V for temperatures of –40 to 100, set the range for that input to –40 – 100.0. A pressure sensor that gives 0-4 V for 1 PSI would use a range of 0-1.25.
  • Page 88 RESET immediate This command is used to perform a soft reset. The MHEARD log is not cleared. Any existing connections, which are not conpermed, will be lost, even though the other station still indicates a connection to your station. The initial sign-on message will be displayed. See also: intface, maxusers, myremote, and restore RESTORE immediate...
  • Page 89 RNRTIME is set in 10-second increments. If a connection stays in a remote device busy state (continues to receive RNR frames) for RNRTIME, the TALON will disconnect. Setting RNRTIME to 0 disables this function. See also: mresp RTEXT text (text up to 128 characters) default (blank) This command sets the password string for use when accessing the MYREMOTE.
  • Page 90 password string. If you fail in three attempts, the TALON will disconnect, and will not accept another connect request for 15 min. SCRAMBLE { ON | OFF | FEC } default OFF When set to ON, transmit data is scrambled. When set to FEC, transmit data is scrambled with FEC (forward error correction, or “redundant bits”).
  • Page 91 default $11 <Ctrl+Q> This command specifies the character sent by the computer to the TALON to restart output from the TALON. If set to $00 only hardware flow control will be used. For software flow control, set this parameter to the character the computer will send to restart data flow.
  • Page 92 This command specifies the character sent by the computer to the TALON to stop output from the TALON. If set to $00 only hardware flow control will be used. For software flow control set this parameter to the character the computer will send to stop data flow. See also: start, xflow, xoff, xon STREAMCA {ON | OFF} default OFF...
  • Page 93 The character selected can be PASSed in the Convers Mode by using a special PASS character, and will always be passed as data in the Transparent Mode. If operating in the Transparent Mode and you wish to change streams, you must first return to the Command Mode.
  • Page 94 A telemetry beacon is sent every n*10 s. If n = 0, the beacon is disabled. The telemetry beacon is a UI frame sent to BEACON. If there is a current UNPROTO digipeat path, it will be used to transmit the telemetry beacon. The data in the UI frame is in the form: “T#nnn,an0,an1,an2,an3,an4,an5,an6,an7,bbbbbbbb”, where: •...
  • Page 95 sent out as received. To get out of Transparent, send the TALON a modem break if BREAK is ON, or see CMDTIME for a special keyboard sequence. See also: break, cmdtime, and command TRFLOW {ON | OFF} default OFF This command allows the TALON to respond to software flow control from the computer while in the Transparent Mode.
  • Page 96 Sets the “time to live” for transmitted packets in TUP mode. TXFLOW {ON | OFF} default OFF This command allows the TALON to send software flow control (XON and XOFF) to stop and restart the flow of data from the computer while in the Transparent Mode. When TXFLOW is OFF, hardware flow control must be used between the computer and TALON.
  • Page 97 the packets waiting to be digipeated will be subject to the same wait times as not-to-be- digipeated packets awaiting transmission. By subjecting “special” to-be-digipeated packets to a delay determined by slottime and persist, it is more likely that to-be-digipeated packets of two or more stations in the same vicinity would not collide.
  • Page 98 See also: beacon, id, monitor, mrpt, and xmitok USERS n (n = 0 - MAXUSERS) default 1 This command specifies the channels (streams) which may be available to incoming connect requests. For example, if USERS = 5 then an incoming connect request will connect to the lowest channel A - E, if any of these channels are in the unconnected state.
  • Page 99 start or stop data. The RS232 cable must be wired appropriately. If the software flow control characters are set to $00, software flow control is not possible. In the Transparent Mode flow control is also determined by the settings of TRFLOW and TXFLOW.
  • Page 100 ALARM INPUT i1/i2/i3/i4 Where i is { OFF | HIGH | LOW | CHANGE} If i is HIGH, an alarm packet will be sent if the pin goes high. If i is LOW, an alarm packet will be sent if the pin goes low. If i is CHANGE, an alarm packet will be sent if the pin changes.

  • Page 101: System Fault Indication

    n is the DAC value (0:1023). d is the digital output value (Y:N). a is the ADC value (0:1023). t is the temperature (CELSIUS). v is the input voltage (0:1023). i is the digital input (Y:N). 14 SYSTEM FAULT INDICATION Following is a table of fault indications.

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