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NBDP TERMINAL
DP-6
MODEL
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C Your Local Agent/Dealer 9 -52, Ashihara -cho, Nishinomiya, Japan Telephone: 0798 -65 - 2111 Telefax: 0798 -65 -4200 FIRST EDITION : FEB . 1997 All rights reserved. Printed in Japan K 2 : JAN . 22, 200 3 PUB. No. OME -5610 0 D P - 6 (YOSH )
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TABLE OF CONTENTS FOREWORD ............................................................................................... v 1. RADIOTELEX COMMUNICATION 1.1 General ......................................................................................................................1-1 1.2 Code Description .......................................................................................................1-1 1.3 ARQ Mode (A-Mode) ...............................................................
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5.6 FEC Mode Operation ................................................................................................5-7 5.7 Communication Example ..........................................................................................5-8 5.8 Timer Operation ......................................................................................................5-11 5.9 Scanning ..................................................................................................................5-1
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FOREWORD FURUNO Electric Company thanks you for selecting and purchasing the FURUNO DP-6 NBDP (Narrow Band Direct Printing) Terminal. We are confident you will discover why the FURUNO name has become synonymous with quality and reliability. To get maximum performance from your unit, please carefully read and follow the recommended procedures for operation and maintenance. The DP-6 is an advanced, microprocessor controlled NBDP Terminal designed to protect teleprinting communications from radio s
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1. RADIOTELEX COMMUNICATION 1.1 General Telex subscribers can attest to radiotelex as a reliable and efficient method for sending and receiving teleprinter connections. Telex subscribers, especially those who often use HF-band radio circuits, will also attest that the telex connection is subject to interference from a variety of sources, including atmospherics, fading and noise disturbance. This interference plays havoc with radio signals, re- sulting in the receiving of information different fr
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1.3 ARQ Mode (A-Mode) Description The ARQ (Automatic Re-transmission request, or Automatic Re- quest for repetition) Mode allows private communications between any two stations using semi-duplex communication. Reception confirmation is done to assure that each character is received cor- rectly. Since the two stations (automatically) exchange identities, this affords some degree of protection for confidential messages. Traffic Exchange Sequence In the ARQ mode two stations communicate directly wi
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not sending. This time is taken up by propagation time from the ISS to the IRS, 70 ms for the IRS to send its service information signal, and the return trip back to the ISS. The IRS listens between blocks and sends a control signal (CS1 or CS2) to request either the next block, or retransmission of the last block in the case of error. Request for retransmission may be re- peated up to 32 times, until the completed block has been received error-free. After 32 times, the ISS automatically initiat
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1.4 FEC Mode (B-Mode) Description The FEC mode is for one-way, uninterrupted transmission of mes- sages, for example, weather forecasts and emergency bulletins, to no one particular station or stations. The sending station is known as the BSS (B-Mode Sending Station), the receiving station the BRS (B-Mode Receiving Station). This mode uses a simple forward-error correcting (FEC) technique of sending each character twice at a 280 ms interval. The first trans- mission is termed DX (direct transmis
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2. SYSTEM OVERVIEW 2.1 System Configuration SSB RADIO- TELEPHONE MAIN UNIT 24 VDC DP-6 DSC NAV AID TERMINAL UNIT 24 VDC IB-581 ______: Standard supply PRINTER - - - - - -: Optional supply 24 VDC PP-510 Figure 2-1 System configuration 2-1
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2.2 Turning on the System There is no particular order for turning on the units of the system. The figure below shows the location of power switches on the units of the system. Note that it takes about six seconds for the LCD to light after the power is turned on. POWER switch MAIN UNIT POWER switch TERMINAL UNIT POWER switch PRINTER Figure 2-2 Main unit, terminal unit and printer 2.3 Equipment Description Terminal Unit The terminal unit consists of a 9" visual display, a floppy disk drive and a
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Keyboard unit is operated from the keyboard, and is almost 100% keyboard controlled. Operation is simplified by the use of menus which you access by pressing a function key, numbered F1-F10 at the top of the keyboard. The figure below shows the function menus and their corresponding function keys. FILE EDIT OPERATE WINDOW STATION SYSTEM WRU HR OVER BREAK Prt Sc Scroll Insert Delete Num Pause Esc F1 F4 F2 F3 F5 F6 F7 F8 F9 F10 Lock Lock F11 F12 SysRq Break ~ ! @ # $ % ^& 7 * 8 (
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2.4 Function Keys, Menu Operation The function keys at the top of the keyboard control most opera- tions of this unit through a menu system. Menu Conventions Inverse video As you move the cursor down through a menu, selected item ini- tially shown as white on black, inverses to black on white. This highlighting indicates that it is available for selection. Underline The underline shows current selection. In the figure below, for example, the underline is beneath "Receive". Timer Operation Set Up
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Selecting menu items and options Menu items can be selected by pressing appropriate numeric key or selecting menu desired with the arrow keys and pressing the [Enter] key. Menu options can be selected by operating the [←]/ [→] keys. Press the [Enter] key to register selection and close the menu. Function Key Description Function key [F1]: File menu The File menu is where you will create, edit, save and print telex messages. File 1: New 2: Open 3: Close 4: Delete 5: Rename 6: Real Time Printing 7
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Function key [F2]: Edit menu The Edit menu provides a full line of editing features. This menu is only operative while creating a message. Edit 1: Undo 2: Cut 3: Copy 4: Paste 5: Select All 6: Search 7: Replace 8: Goto Top 9: Goto Bottom 0: Goto Line A: Change Text Figure 2-8 Edit menu 1: Undo Cancels the last change (cut, copy or paste). 2: Cut Removes the selected text and stores it in the paste buffer. (Previous text in the paste buffer is cleared.) 3: Copy Copies the selected text and stores
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Function key [F3]: Operate menu The Operate menu controls transmitting and receiving. Operate 1: Call Station 2: Macro Operation 3: File to Send 4: Cancel Sending 5: Scan (Start/Stop) 6: Manual Reception 7: Timer Operation 8: High Tension ON 9: Manual Calling 0: Set Frequency Figure 2-9 Operate menu 1: Call Station Selects a station from the station list. 2: Macro Operation Enables fully automatic operation. 3: File to Send Selects a file (to transmit). 4: Cancel Sending Stops sending a file. 5:
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Function key [F4]: Window menu The Window menu displays data together with current screen. Window 1: Display NMEA Data 2: Calendar 3: Remote A (TX/RX) 4: Remote B (DSC) 5: Distress Frequency Table Figure 2-10 Window menu 1: Display NMEA Data Displays NMEA data: position, speed, Heading, water temperature and depth. 2: Calendar Displays desired calendar month and year. 3/4: Remote A/B Entering commands on this screen enables remote control of a FURUNO radio trans- ceiver and DSC terminal connec
