Alinco EJ-50U Instruction Manual
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Alinco EJ-50U Instruction Manual

Alinco EJ-50U Instruction Manual

Terminal node controller unit
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Instruction Manual
EJ-50U Terminal Node Controller Unit
Thank you for purchasing this fine Alinco product. This unit enables data communication when it is properly
installed in designated Alinco transceivers. Please read this manual, print the contents if necessary, and keep this
disk for future reference.
Since this device is also capable of being used in commercial applications, some of the pages in this manual are
intentionally left blank to accommodate those uses in other regions.
Although we attempt to explain the features of this unit in a simple and comprehensive manner, unless you have
some knowledge about packet communications and APRS, you may have difficulty understanding the contents of
this manual. We apologize, but Alinco cannot provide basic information on how packet and/or APRS functions in
general. Please consult your favorite Ham radio stores for books on the subject and/or web-sites that support your
area of interest regarding those communication modes. You may also find assistance through a local amateur radio
club. You can explore the exciting world of data communications, and we believe that this is a most interesting
part of the king of hobbies, Amateur Radio.
®
APRS
is a registered trademark of Bob Bruninga, WB4APR
Notice
• This unit should be used with ALINCO transceiver DR-620T/E.
• The parameter settings are retained by the built-in lithium battery. If the settings return to their
default values, the battery may be depleted. Should this occur, consult your Alinco dealer.
Please refer to the Alinco transceivers' instruction manual for the proper installation of this unit.
Index
1. Description -------------------------------------------------------------------------------------------------- 5
2. Commands --------------------------------------------------------------------------------------------------- 6
2-1 command mode and converse mode ---------------------------------------------------------------- 6
2-2 general use of commands ----------------------------------------------------------------------------- 6
2-2-1 Direct commands ------------------------------------------------------------------------------------ 6
2-2-2 Setting parameters ---------------------------------------------------------------------------------- 6
2-2-3 Reconfirming the stored parameters -------------------------------------------------------------- 6
2-3 Error messages ----------------------------------------------------------------------------------------- 6
2-3-1 [?EH] ------------------------------------------------------------------------------------------------- 6
2-3-2 [?BAD],[?RANGE],[?TOO LONG] -------------------------------------------------------------- 6
2-3-3 [?TOO MANY],[NOT ENOUGH] ---------------------------------------------------------------- 6
2-4
Command chart --------------------------------------------------------------------------------------- 7
3 Connection to a host (PC) --------------------------------------------------------------------------------- 10
3-1 communication environment ------------------------------------------------------------------------ 10
3-2 Relative commands ----------------------------------------------------------------------------------- 11
3-2-1 ABAUD commands -------------------------------------------------------------------------------- 11
3-2-2 AWLEN commands -------------------------------------------------------------------------------- 11
3-2-3 PARITY commands -------------------------------------------------------------------------------- 11
1
Ver.01
ALINCO,INC

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  • Page 1 EJ-50U Terminal Node Controller Unit ALINCO,INC Thank you for purchasing this fine Alinco product. This unit enables data communication when it is properly installed in designated Alinco transceivers. Please read this manual, print the contents if necessary, and keep this disk for future reference.

  • Page 2: Table Of Contents

    3-2-4 ECHO commands ----------------------------------------------------------------------------------- 11 3-2-5 FLOW commands ----------------------------------------------------------------------------------- 11 3-2-6 XFLOW commands -------------------------------------------------------------------------------- 11 3-2-7 AUTOLF commands ------------------------------------------------------------------------------- 12 3-2-8 FLOVER commands --------------------------------------------------------------------------------- 12 4 Communication related commands (as a wireless modem) --------------------------------------------- 12 4-1 Basic commands for the communication ------------------------------------------------------------ 12 4-1-1 HBAUD command ---------------------------------------------------------------------------------- 12 4-1-2 MYCALL command -------------------------------------------------------------------------------- 12 4-1-3 CALIBRAT command ------------------------------------------------------------------------------ 13...
  • Page 3 4-7-1 MONITOR command ---------------------------------------------------------------------------- 20 4-7-2 MCOM command -------------------------------------------------------------------------------- 20 4-7-3 MCON command -------------------------------------------------------------------------------- 21 4-7-4 MALL command --------------------------------------------------------------------------------- 21 4-7-5 MRPT command --------------------------------------------------------------------------------- 21 4-7-6 TRACE command ------------------------------------------------------------------------------- 21 4-7-7 MSTAMP command ----------------------------------------------------------------------------- 21 5 To connect to GPS ---------------------------------------------------------------------------------------- 21 5-1 What does it do with GPS? ------------------------------------------------------------------------- 21 5-2 Compatible GPS ------------------------------------------------------------------------------------ 22 5-3 Communication environment ---------------------------------------------------------------------- 22...
  • Page 4 6-4-2 CONMODE command -------------------------------------------------------------------------- 30 6-4-3 NEWMODE command -------------------------------------------------------------------------- 30 6-5 KISS mode ------------------------------------------------------------------------------------------ 30 6-5-1 KISS command ----------------------------------------------------------------------------------- 30 7 LED --------------------------------------------------------------------------------------------------------- 30 7-1 DCDLED terminal (CPU #6 pin) ---------------------------------------------------------------- 30 7-2 CONLED terminal (CPU#7 pin) ----------------------------------------------------------------- 30 7-3 STALED terminal (CPU #8 pin) ----------------------------------------------------------------- 30 7-4 PTTLED terminal (CPU #9 pin) ------------------------------------------------------------------ 30 7-5 LED related command ----------------------------------------------------------------------------- 30 7-5-1 HEALLED command ---------------------------------------------------------------------------- 30...
  • Page 5 10-2-1 FILE command ----------------------------------------------------------------------- 39 10-2-2 LIST command ------------------------------------------------------------------------ 39 10-2-3 MINE command ----------------------------------------------------------------------- 39 10-2-4 READ command ---------------------------------------------------------------------- 40 10-2-5 WRITE command --------------------------------------------------------------------- 40 10-2-6 KILL command ------------------------------------------------------------------------ 40 10-3 Message Board related LED --------------------------------------------------------------------- 40 10-3-1 MBODLED terminal (CP9 pin) ------------------------------------------------------ 40 10-3-2 MAILLED terminal (CP0 pin) ------------------------------------------------------- 40 10-3-3...

  • Page 6: Commands

    2. Commands In this manual, unless otherwise specified, any “key” refers to the keys on a PC keyboard. The “screen” referred to is the PC monitor screen. 2-1 Command mode and Converse mode The typical operating modes of this unit are the Command mode and the Converse mode. It is necessary to use the command mode to set internal parameters, or execute immediate direct commands in the EJ-50U.

  • Page 7: Command Chart

    2-4 Command chart The following is a chart for the commands commonly used in Amateur Radio communications. abbrevi Command default range Description Ref. ation 8BITCONV ON/OFF bits, number of characters in the converse mode 6-2-3 ABAUD 9600 600-15200 sets serial port communication speed 3-2-1 AFILTER 0-$80...
  • Page 8 ECHO ON/OFF Activates echo back of your keystrokes on the 3-2-4 computer screen EPATH EPATH Call1, --, Sets digipeater list to be replaced while using 8-3-9 UISSID Call7 EXTCLR EXTC Clears the Message Board 10-1-6 FILE Displays all messages on the Message Board. 10-2-1 FIRMRNR ON/OFF...
  • Page 9 MONITOR ON/OFF Monitor (or not monitor) packet communications. 4-7-1 MRPT ON/OFF When ON, displays digipeat route in the header. 4-7-5 MSTAMP ON/OFF Applies date/time to the header 4-7-7 MYCALL NOCALL 6 characters Sets your callsign in the TNC 4-1-2 +SSID MYALIAS 6 characters Sets the “name”...
  • Page 10 STREAMSW 0-$7F Sets character used to change STREAM 9-1-2 TOUT TOUT 0-250 Message Board time-out parameter 10-1-3 TRACE TRAC ON/OFF Displays the contents of all received frames. 4-7-6 TRANS Enter the transparent mode. 6-3-1 TRFLOW ON/OFF Flow-control in the transparent mode. When ON, 6-3-2 control comes from the host program TRIES...

  • Page 11: Relative Commands

    Relative commands 3-2-1 ABAUD command Abbrev. AB default 9600 parameters: 600,1200,480,9600,19200 example AB 15200 Function: Sets the serial communication speed to the host. YOU MUST REBOOT by using the RESTART command or reboot when in the back-up mode. This value must match the speed of the host terminal communication port.

  • Page 12: Autolf Commands

    3-2-7 AUTOLF command Abbrev. AU default ON range ON/OFF example AU ON When on, it puts a line-feed [LF] code after the carriage return [CR]. This is to match the parameters of the terminal software such as [CR] RX, [CR]/[CR]+[LF]. The incorrect setting may result in overwriting of the new message onto the displayed message or if excessive line feeds occur.

  • Page 13: Transmission Related Commands

    4-1-3 CALIBRA command Abbrev. CAL default: none parameter: none Example: CAL By using this command, the TNC enters the calibrate mode and outputs mark and space characters alternately. This is useful for checking the transmitter or for setting transmit deviation. Type [Q] key to exit. In the 1200 bps mode, 1200 and 2200Hz signals are output alternately.

  • Page 14: Ppersist Command

    (1) As it goes to transmission, PTT turns ON and starts transmitting the Flag signal. The Flag signal is to show the partition of the packet and to synthesize the data clock. (2) The data transmission is held until the TXDELAY time elapses. The TXDELAY must be calculated including the physical timing of the RX/TX change of the radio, and the Flag period of the reception side of the packet.

  • Page 15: Txdelay Command

    4-2-6 TXDELAY command Abbrev. TX default 50 parameter: 0 to 255 Example: TX 80 This is to determine the waiting time between PTT on and the transmission of the packet, in units of 10 microseconds. During the TXDELAY period, the Flag signal is transmitted. This Flag signal is used to divide frames and to allow the radio to synthesize.

  • Page 16: Connect Command

    accepted. Please leave this parameter OFF for error-free communication. 4-4 Connected for 2way communications (being connected) In the connected communication mode, in accordance with the AX.25 protocol, data is exchanged with “Yes, I got it” or “I didn’t get it, please retransmit” kind of information. If the confirmation (“I got it”) is not received after transmission, the TNC retransmits the data.

  • Page 17: Frack Command

    is sent. 4-4-7 FRACK command Abbrev. FR default: 3 parameter: 0-250 example: FR 5 When you are “on-line” (connected) and the transmitted information frame (I frame) is received at its destination correctly, you receive a “Yes, I got it” (RR frame). If a certain time has elapsed but you still don’t get a reply, the I frame will be transmitted again (retry feature).

  • Page 18: Constamp Command

    status. This may result in poor communications efficiency by sending packets that will not be received. 4-4-12 CONSTAMP command Abbrev.:CONS default: OFF parameter: ON/OFF example: CONS ON When ON, adds date and time to the displayed packet when connected or not. ON: When the date and time is previously set using DAYTIME command, the date and time of connection will appear on the display.

  • Page 19: Sendpac Command

    When they reach pre-determined length: PACLEN When the pre-set time is elapsed: PACTIME and relative CPACTIME You may transmit different frames as one packet. The maximum number of these frames can be determined with MAXFRAME command. 4-6-1 SENDPAC command Abbrev.: SE default: $0D parameter: 0-$7F example: SENDPAC $0D In the converse mode, when the letter code specified with this parameter is entered, the letters preceding the code are considered a complete packet (information frame=I frame) and will be sent out.

  • Page 20: Maxframe Command

    PACTIME command becomes effective when ON is selected. The PACTIME command is not automatically effective on the EJ-50U. 4-6-7 MAXFRAME command Abbrev. : MAX default: 4 parameter: 1-7 Example: MAX 7 This command sets a limit on the number of packets that have not been acknowledged by the receiving station. Since the size of the EJ-50U’s transmission buffer is limited, the number of outstanding frames and the size of those frames must be considered.

  • Page 21: Mcon Command

    Command/Response [C] command [R] Response Sequences [Rn] Receiving sequences. n=0-7 [Sn] Transmitting sequence n=0-7 4-7-3 MCON command Abbrev. MC default OFF parameters: ON/OFF Example: MC ON This allows you to monitor frequency activity even when connected to another station. ON allows you to monitor while you are connected. OFF does not. 4-7-4 MALL commands Abbrev.

  • Page 22: Compatible Gps

    5-2 Compatible GPS The following GPS receivers are compatible with the EJ-50U: (1) SONY’s IPS-5000 series, IPS-3000 series, PACY-CNV10 and other GPS receivers that output the data starting with [SONY xxxxxx]. The Sony Car-Navigation system receiver that generates a data string starting with [SMATC xxxx] may work, but we do not guarantee its function, as the format of this string is not officially published.

  • Page 23: Smatc

    : day 090346 : Current time in UTC : N for North, S for South to indicate the latitude 3546569: the latitude in degree. This number can be shown in DMD (NEMA) or DMS that is selectable with a command. The identifier will appear on the later part of the data.

  • Page 24: Gpvtg

    Horizontal dilution of position 545.4,M Altitude, Meters, above mean sea level 46.9,M Height of geoid (mean sea level) above WGS84 ellipsoid (empty field) time in seconds since last DGPS update (empty field) DGPS station ID number 5-4-4 $GPVTG One of the NMEA-0183 formats. Only the speed and direction can be detected. The EJ-50U can analyze and re-structure this format.

  • Page 25: Gpgll

    Direction in degrees Date in dd/mm/yy format. The difference of magnetic direction from true north. To which direction the magnetic direction differs. E toward east, W toward west. Hh<CR><LF> the check-sum and the end of the message. 5-4-7 $GPGLL One of NMEA-0183 formats. latitude, longitude, and time can be detected. EJ-50U can analyze and re-structure this format.

  • Page 26: Details Of Gps Data Processing

    The numeric digits usually vary its length, sometimes without the decimal numbers. In order to keep a fixed length of data, 0 is added before a number like 001 to indicate 1. The check-sum may be eliminated. Numbers followed by * , or even * itself is sometimes eliminated. 5-5 Details of GPS data processing In the EJ-50U, data in the LTXT buffer will be sent out as a beacon.

  • Page 27: Lpath Command

    example: GBAUD 4800 Determines the GPS port bit-rate. 4800 for 4800 bps. 9600 for 9600 bps. Refer also to chapter 5-3-1. 4800 is recommended for NMEA compatible GPS units, 9600 for SONY GPS. Remember that this command sets bit-rate only, and is not related to the firmware of the device. The firmware checks SONY/NMEA GPS data by processing the contents of the receiving data.

  • Page 28: Ntsgrp Command

    data contained in the string will be automatically placed in the LTEXT buffer. If the GPSTEXT content is one of those below and does not match with the initial part of the data, it restructures the sentence and automatically updates the LTEXT content based on previously received GPS data. In other words, the feature offers the conversion of the GPS data.

  • Page 29: Converse Mode

    As mentioned in 2-1, the operational mode is usually “connect mode”. The “cmd:” prompt appears when it is in the command mode. If it does not appear, use CR or return or Enter key to display it on the screen. 6-2 Converse mode As briefly mentioned in 2-1, this is the mode to send typed data as a packet.

  • Page 30: Trflow Command

    CMDTIME, press the C key 3 times with the Ctrl key pressed. <CTRL+C> 6-3-2 TRFLOW command Abbrev. TRF default OFF range ON/OFF example TRF OFF When ON, activates the software-flow function for the modem to host communication in the transparent mode. ON: Software-flow is activated.
  • Page 31 Chapter 7 Intentionally left blank. 8 Digipeat function When the EJ-50U is installed into certain ALINCO transceivers, the radio and TNC can function as a digipeater. The detail of UI frames are also explained in this chapter. 8-1 Digipeat related commands 8-1-1 DIGIPEAT command Abbrev.

  • Page 32: Uicheck Command

    feature: Use this command to manually transmit HDCL-ID. This command works only when HID command is ON. This command will become invalid when the station is not used as a repeater after ID is sent. 8-2 Concept of UI digipeat This is to relay UI frames that match certain conditions.

  • Page 33: Uidigi Command

    8-3-3 UIDIGI command Abbrev. UI default OFF(empty) range ON/OFF call1[,call2[,call3[,call4]]] example UI ON WIDE, TRACE, RELAY UI OFF % (to empty “Call”) The UIDIGI relay won’t work when this parameter is set OFF, or the callsign area of the parameter is empty. If you wish to clear the callsigns, enter Call1 as %, Call2 % etc.

  • Page 34: Uitrace Command

    is only to reduce Y value by 1. Example: In case of UIFLOOD WIDE, NOID MYCALL W1AAA W1BBB>GPS,WIDE4-4:Frame 1 -> W1BBB>GPS,WIDE4-3:Frame1 W1BBB>GPS,W1CCC*,WIDE4-3:Frame2 -> W1BBB>GPS,W1CCC*,WIDE4-2:Frame2 W1BBB>GPS,W1CCC*WIDE4-1:Frame 3 -> W1BBB>GPS,W1CCC*,WIDE4:Frame3 (Note that Y=SSID changes 1 to 0) W1BBB>GPS,W1CCC*,WIDE4:Frame4 -> This in not Name X-Y parameter (Y is 0) thus wont be relayed in UNFLOOD command.

  • Page 35: Uissid Command

    W1BBB>GPS,W1CCC*,TRACE4-3:Frame2 W1BBB>GPS,W1CCC,W1AAA*,TRACE4-2:Frame2-> W1BBB>GPS,W1CCC,W1DDD,W1EEE*,TRACE4-1:Frame3 W1BBB>GPS,W1CCC,W1DDD,W1EEE,W1AAA*,TRACE4;Frame3 W1BBB>GPS,W1CCC*,TRACE4:Frame4 -> This in not Name X-Y parameter (Y is 0) thus wont be relayed in UNTRACE command. W1BBB>GPS,TRACE:Frame5 -> Same reason as above, no relay. W1BBB>GPS,TRACE4-4:Frame6 -> This does not match Name, so no relay. 8-3-6 UISSID command Abbrev.

  • Page 36: Npath Command

    No unrelayed station in the relay route Relay modification process Sender’s SSID is replaced with 0 MYCALL setting callsign is inserted at the end of the relayed station list. Adds relay station list according to the parameter: SSID=8: Relay station list set at NPATH command, 9:SPATH, 10:EPATH, 11:WPATH (more than 8 stations including relayed wont be added) Example: UISSID ON MYCALL W1AAA, NPATH S1,S2,S3 W1BBB>GPS-8:Frame1->W1BBB>GPS,W1AAA*S1,S2,S3,:Frame1...

  • Page 37: Spath Command

    8-3-8 SPATH command Abbrev. SPATH default empty range 7 callsigns example SPATH W1YYY,W1ZZZ SPATH % (empty) In the UISSID command, if the sender’s callsign SSID is 9 or 13, it sets the relay route to be added to the relay station list.

  • Page 38: Lcstream Command

    example STREAMD ON When a received packet contains stream-change code, this parameter determines whether or not to output both codes. When ON is selected the codes are both displayed. This enables you to identify which is the received code and which is the one received from other stream’s packet. OFF disables this function and the code won’t be displayed for both.

  • Page 39: Route Command

    connection. 10-1-4 ROUTE command Abbrev. ROU default ON range ON/OFF example ROU OFF When a Forwarded message is received from a forwarding BBS, this command determines if the routing information is saved or not. If ON, the route information is saved. OFF discards the information. 10-1-5 OVERKILL command Abbrev.

  • Page 40: Read Command

    10-2-4 READ command Abbrev. R default None range n1,n2… example R 2 This command allows you to read the specified message in the MB. To read multiple messages, use comma as a separation. 10-2-5 WRITE command Abbrev. W default None range call example W W1BBB (to specify the destination) W (for open message) This command is for posting a message in the MB.

  • Page 41: B Command

    When the message is finished, enter [CR][Ctrl-Z][CR] or [CR]/EX[CR]. If the writer exceeds the amount of available memory while composing a message, the WRITE function terminates and the message is deleted. 10-4-2 B command (BYE) Abbrev. None default None range None example B The connection to MB will be terminated when a user sends B (as in “BYE”).

  • Page 42: Miscellaneous Commands

    11 Miscellaneous commands The followings are miscellaneous commands: Restart and Reset commands Display commands Display setting according to the terminal software 11-1 Restart and Reset 11-1-1 RESTART command Abbrev. RESTART default : none parameter: none Example: RESTART This will restart the TNC. If memories are stored, it initializes according to the stored data. This is used mainly to set parameters such as AWLEN and PARITY which is available only when the TNC is initialized.

  • Page 43: Ram Check Command

    11-3-3 DAYSTAMP Abbrev. DAYS default: OFF range ON/OFF example DAYS ON In converse mode, typing T with Ctrl pressed <CTRL+T> sends time data. By turning this command ON, the date information is transmitted. OFF disables the function. 11-4 RAM check command 11-4-1 RAMTEST command Abbrev.

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