JMC NT-2000 User manual

NT–2000 REF Manual
UM-NT2000-07
First Edition
October, 2005
Operation & Installation
for MODEL
NT–2000/DEBEG 2902
Dual Channel
NAVTEX Receiver
(Receiver Unit: PROTECTED EQUIPMENT UNDER IEC 60945–2002)
(Antenna Unit: EXPOSED EQUIPMENT UNDER IEC 60945–2002)
Valid for Software Version 1.2
sales@japan–marina.co.jp
www.japan–marina.co.jp

DEBEG 2902
Copyright
In this manual the NAVTEX Receiver DEBEG 2902
is referred to as NT–2000.
This document is manufacturer´s property for which all rights reserved, including
those relating to patents or registered designs.
It must not be reproduced or used otherwise or made available to
any third party without our prior permission in writing.
Alterations resulting from technical progress are reserved.
< WARRANTY >
The warranty terms and conditions for the DEBEG 2902 are given in a separate
sheet attached to the delivery of each unit.
SAM Electronics GmbH
Behringstraße 120 • 22763 Hamburg • Germany
Tel: [phone] • Fax: + 49 40 8825 4118 • Telex: 211 925
E–mail:navcom@sam–electronics.de
For Service
Customer Support Centre
Telephone: [phone] (24 hours)
Fax: [phone]
E–mail:shipservice@sam–electronics.de

NT–2000 REF Manual
WARRANTY
i
WARRANTY
Japan Marina Co. Ltd. (JMC) warrants the NT–2000 NAVTEX Receiver and its active
antenna ANT–2000 against defects in materials and workmanship for a period of one
year from the date of shipping from the factory, during which time JMC will, at its
option, either repair or replace products that prove to be defective.
Users shall ship defective products, freight prepaid, back to JMC, address given below,
for warranty service.
The warranty shall not apply to defects caused by:
●Misuse or incorrect usage
●Static discharges/ lightning strikes to the antenna or to the receiver or other types of
natural disaster
●RF power from radio transmitters in excess of 30V rms at the antenna input
●Improper or inadequate maintenance by the user
●Unauthorized service including modification, realignment of the receiver/antenna
●User–supplied software or interfacing
●Operation outside the environmental specifications listed in the manual, or
●Improper installation
The above warranty applies to the original user who purchased the products direct from
JMC. If your unit was supplied by a JMC–authorized dealer, different warranty terms
and conditions may apply. Please contact your dealer for details.
Before returning the units to JMC for warranty service, please obtain JMC’s return
authorization.
When shipping the units to JMC or its dealers for service, please be sure to include the
following types of information:
･Serial number
･Software release date and revision (REV.) number
･Power supply voltage
･Installation details, including antenna height and surrounding environment
･Detailed description of trouble
･Valid proof of purchase from JMC
･Invoice marking “MADE IN JAPAN, being returned for repairs.”
Japan Marina Co. Ltd.
36–2–1001 Udagawacho, Shibuya–Ku, Tokyo 150–0042
PHONE: [phone], FAX: [phone]
E–Mail: sales@japan–marina.co.jp

NT–2000 REF Manual
WARNINGS AND CAUTIONS
ii
< WARNINGS >
1. HIGH VOLTAGES
HIGH VOLTAGES EXIST INSIDE THE EQUIPMENT CABINET. BE SURE
TO SWITCH THE EQUIPMENT OFF AND UNPLUG THE POWER CORD
BEFORE OPENING THE CABINET FOR INSPECTION OR REPAIRS.
2. INSTALLATION & OPERATING ENVIRONMENT
THE DISPLAY CABINET IS IN THE “PROTECTED” EQUIPMENT
CATEGORY AS DEFINED UNDER IEC 60945(2002), AND IS NOT
WEATHERIZED FOR OUTDOOR INSTALLATION/OPERATION. ANY
DAMAGE CAUSED DIRECTLY OR INDIRECTLY THROUGH WATER
INTRUSION IS NOT COVERED BY THE MANUFACTURER’S OR
DEALER’S WARRANTY.
3. INSTALLATION & OPERATING PROCEDURES
ANY DAMAGE CAUSED BY INSTALLING OR OPERATING THE
EQUIPMENT OUTSIDE THE SPECIFICATIONS DESCRIBED IN THIS
MANUAL IS NOT COVERED BY THE MANUFACTURER’S OR
DEALER’S WARRANTY.
CONTACT YOUR DEALER FOR WARRANTY CONDITIONS.
4. LIABILITY
●OPERATION
NEITHER THE MANUFACTURER NOR ITS DEALER IS RESPONSIBLE
FOR ANY LOSS OF LIFE, PERSONAL INJURY OR DAMAGE TO THE
PROPERTY RESULTING FROM THE USE OF THIS EQUIPMENT OR
FROM BEING UNABLE TO OPERATE THE EQUIPMENT FOR ANY
REASON.
●MANUAL
REASONABLE PRECAUTIONS HAVE BEEN TAKEN TO PREPARE THIS
MANUAL. HOWEVER, NEITHER THE MANUFACTURER NOR ITS
DEALER ASSUMES ANY RESPONSIBILITY FOR ERRORS OR
OMISSIONS.

NT–2000 REF Manual
WARNINGS AND CAUTIONS
iii
< CAUTIONS >
1: Operational – Memory Retention Period
Do not leave the equipment switched off for more than 10
days continuously, or all stored messages will be erased,
whether they are protected or not. Important messages
you wish to preserve should be output to an optional
printer or to a PC via the appropriate rear panel interface
connector if the equipment is to be kept turned off for
extended periods of time.
2: Operational – Memory–Full Indications
As soon as the equipment has stored a total of 199
messages, the following caution will show up in the
bottom command/prompts line along with 3 beeps:
MEMORY FULL ! [CLR] TO ACKNLG.
The oldest message will then be erased from memory
automatically after reception of a next new message. As
soon as you notice the above warning, be sure to
acknowledge each unread message by pressing

,
and if necessary, press

to protect important
messages you wish to retain for permanent storage.
3: Environmental Safety – Equipment Disposal
Neither the display cabinet nor the active antenna unit
contains any materials considered hazardous to the
environment. However, if either unit is to be discarded
for any reason, be sure to follow all relevant local
ordinances/regulations, and contact your dealer or the
manufacturer (contact information given below) for
assistance or instructions before disposing of it.
Japan Marina Co. Ltd.
36–2–1001 Udagawacho, Shibuya–Ku, Tokyo 150–0042
PHONE: [phone], FAX: [phone]
E–Mail: sales@japan–marina.co.jp

NT–2000 REF Manual
Index
iv
1. Typical NAVTEX Message Screen.............................................................1-1
1.1. Introduction........................................................................................................1-1
1.2. Indication of Reception and Storage of New NAVTEX Message......................1-5
2. Control Panel Functions .........................................................................2-1
3. Basic Operating Procedure.......................................................................3-1
3.1. Introduction........................................................................................................3-1
3.2. Turning the Equipment On/Off.........................................................................3-1
3.3. Adjusting Screen Brightness ...........................................................................3-2
3.4. Adjusting Keypad Backlighting Level ..............................................................3-2
3.5. Switching First and Second Receivers ..............................................................3-2
3.6. Scrolling NAVTEX Messages.............................................................................3-3
3.7. Stopping Audible and Visual Alarm ..................................................................3-4
3.8. Protecting Messages for Permanent Storage....................................................3-5
3.8.1. Introduction ..............................................................................................3-5
3.8.2. Protecting Procedure ..............................................................................3-5
3.8.3. Removing Protection Tag ......................................................................3-6
4. Customizing Operation via Menu System...................................................4-1
4.1. Introduction........................................................................................................4-1
4.2. Accessing the Menu System ..............................................................................4-1
4.3. Selecting Screen Background Colors ................................................................4-2
4.4. Selecting Message Font Types...........................................................................4-2
4.5. Turning on/off Screen Sleep Mode.....................................................................4-3
4.5.1. Introduction...............................................................................................4-3
4.5.2. Turning Sleep Mode on ............................................................................4-3
4.5.3. Setting Times to Reduced Brightness Levels ......................................4-4
4.6. Selecting Frequencies for Second Receiver.......................................................4-4
4.7. Turning on/off Keypress Beep ...........................................................................4-5
4.8. Selecting and Rejecting Transmitters and Message Types..............................4-6
4.8.1. Selecting and Rejecting Transmitters..................................................4-6
4.8.2. Selecting and Rejecting Message Types ..............................................4-8
4.9. Searching Memory for Stored Messages.........................................................4-10
4.10. Selecting Output Messages .............................................................................4-11
4.10.1. Introduction ............................................................................................ 4-11
4.10.2. Outputting Live NAVTEX Messages ................................................4-12
4.10.3. Outputting All Stored Messages .......................................................4-13

NT–2000 REF Manual
Index
v
4.10.4. Outputting NAVTEX Messages of Specific Receiver ....................4-14
4.10.5. Outputting NAVTEX Messages of Specific Station.......................4-15
4.10.6. Outputting NAVTEX Messages of Specific Message Type...........4-16
4.10.7. Outputting All Displayed NAVTEX Messages ...............................4-17
4.10.8. Outputting Specific NAVTEX Message...........................................4-18
4.11. Setting Output Ports .......................................................................................4-19
4.11.1. Introduction ..........................................................................................4-19
4.11.2. Enabling / Disabling I / O Ports .............................................................4-19
4.11.3. Selecting Communications Protocols ...........................................4-21
4.11.4. Selecting Bit Formats and Data Transfer Rates ......................4-22
4.12. Performing Self–Diagnostic Tests ..................................................................4-25
4.12.1. Introduction ............................................................................................4-25
4.12.2. Activating Self–Diagnostic Function .................................................4-25
4.12.3. Checking Test Results .............................................................................4-26
4.13. Turning on/off Message Alarms.......................................................................4-27
4.14. Resetting the System......................................................................................4-28
5. User–Level Troubleshooting .....................................................................5-1
5.1. Power–Up Problems...........................................................................................5-1
5.2. No Message Reception .......................................................................................5-2
5.3. Message Storage Problems................................................................................5-4
5.4. Poor Reception ...................................................................................................5-5
5.5. Blank Message Screen.......................................................................................5-6
5.6. Uncontrollable Screen Brightness.....................................................................5-6
5.7. No Beep from Keypress .....................................................................................5-6
5.8. No Response from Keypress ..............................................................................5-7
5.9. No Message Alarm Indication ...........................................................................5-7
5.10. No Message Alarm Output ................................................................................5-8
5.11. No External Outputs .........................................................................................5-8
5.12. External Control Problem .................................................................................5-9
6. User–Level Maintenance Instructions ................................................6-1
6.1. Maintenance on the Equipment Cabinet ..........................................................6-1
6.2. Maintenance on Electrical Connections............................................................6-1
6.3. Maintenance on The Active Antenna Unit........................................................6-2
6.4. Self–Diagnostic Tests.........................................................................................6-2
6.5. Recommended Spare Parts................................................................................6-3

NT–2000 REF Manual
Index
vi
7. Installation ............................................................................................7-1
7.1. Receiver Cabinet Installation............................................................................7-1
7.1.1. General Precautions ...............................................................................7-1
7.1.2. Mounting the Receiver Cabinet..................................................................7-1
7.2. Antenna Installation..........................................................................................7-3
7.2.1. Installation Site Requirements ..................................................................7-3
7.2.2. Precautions for Cabling ..............................................................................7-3
7.3. Electrical Connections .......................................................................................7-5
7.3.1. Introduction ..............................................................................................7-5
7.3.2. Connector Pin Assignments and Connections ....................................7-7
7.4. INS Port Data and Command Sentences........................................................7-15
7.4.1. Received NAVTEX Sentence Format .................................................7-15
7.4.2. NAVTEX Receiver Masks .....................................................................7-16
7.4.3. Alarm Output Sentence Format ........................................................7-17
7.4.4. Alarm Acknowledgement .....................................................................7-17
7.4.5. Proprietary Sentences ..........................................................................7-18
8. Summarized Theory of Operation ........................................................8-1
8.1. What is NAVTEX?..............................................................................................8-1
8.2. Operating Frequencies ......................................................................................8-1
8.3. Service Area........................................................................................................8-1
8.4. Error Correction.................................................................................................8-1
8.5. NAVTEX Receiver – General.............................................................................8-2
8.6. The NT–2000/DEBEG 2902 NAVTEX Receiver ..............................................8-2
8.7. Operating Principle of NT–2000/DEBEG 2902 ................................................8-3
9. Specifications .........................................................................................9-1
10. List of Alarms ......................................................................................10-1
10.1. Message Alarms ...............................................................................................10-1
10.2. Operational Alarms..........................................................................................10-1
11. List of Abbreviations ........................................................................... 11-1
12. User Settings To Be Stored in Non–Volatile Memory ............................12-1
13. List of Components To Be Shipped .........................................................13-1

NT–2000 REF Manual
Typical NAVTEX Message Screen
1-1
1. Typical NAVTEX Message Screen
1.1. Introduction
The illustration below represents a typical NAVTEX message screen, showing a new
message received on the first (518 kHz) receiver. A similar screen will show up when
the equipment is switched to receive a second receiver (490 kHz or 4209.5 kHz) message.
A brief description of on–screen indications is given below and in the following pages.
Figure 1-1 Typical NAVTEX Message Screen (First Receiver Page)
①Indication of Receiver in Use to Display Current Messages
･1ST RCVR: First receiver, 518 kHz
･2ND RCVR1: Second receiver, 490 kHz or 2ND RCVR2:4209.5 kHz
The two receivers can be switched by pressing

.
②Message No. and Total No. of Messages Stored
The message number of the currently displayed message along with the total
number of stored messages is indicated in the following format:
Examples:
・12/12: Message #12 (newest message ) of 12 messages stored
・1/12: Message #1 (oldest message ) of 12 messages stored
③Message Scrolling Keys
The keys that can be used to scroll messages on the current screen are indicated.
・
 : Line–by–line scrolling by pressing

/

・
 : Message–by–message scrolling by pressing

/

(
continued on next page )
1ST RCVR MSG (12/12)   STANDBY
ID21 INEW MESSAGEIIALARM!II
091230 UTC AUG 05
COLLISION NO, 223
KAISHIN MARU/JL5989 COLLIDED WITH
MALTESE VESSEL WEI HANG. MALTESE
VESSEL SANK AT POSITION 35-32.03N
140-47.08E AT 212010 UTC.
16 CREWMEN WERE RESCUED AND 5 OTHERS
ARE STILL MISSING.
SHIPS IN THE VICINITY ARE REQUESTED TO
KEEP A SHARP LOOKOUT AND REPORT ANY
INFORMATION TO THE COAST GUARD.
CANCEL COLLISION NO. 221.
NNNN STORED (CER= 00%)
MORE NEW MSG LEFT !
①②③④
⑤
⑥
⑨
⑩
⑬
⑦
⑧
⑪
⑫

NT–2000 REF Manual
Typical NAVTEX Message Screen
1-2
1. Typical NAVTEX Message Screen (
continued – 2/5 )
1.1. Introduction (
continued – 2/4 )
④Receiver Operating Status Indication
The current status of receiver operation is indicated here.
・STANDBY: Receiver is waiting for a NAVTEX message transmission.
・ACQUIRING: Receiver is currently in the process of locking onto the start of
the current message transmission.
・LOCKED: Receiver has locked onto the current NAVTEX transmission,
allowing a message to be received. As soon as the equipmet
starts receiving the message, this indication will be replaced
by its message ID.
・ABORTED: Receiver has failed to lock onto the current transmission, or
has already received the same message.No message will be
received.
⑤Operating Status Line
The current status of receiver operation, text scroll keys, etc. are indicated here.
Examples:
・1ST RCVR MSG: Message received on the first receiver is currently displayed.
・2ND RCVR MSG: Message received on the second (490 or 4209.5 kHz) is
currently displayed.
・  : Message can be scrolled line by line by pressing /.
・STANDBY: Receiver is idling, waiting for a NAVTEX message
transmission. See ④above for details.
⑥Message Identification (Message ID)
The ID of the currently displayed message is shown here. A red–colored ID
represents a warning message. A message ID consists of the following elements:
station ID, message type, and message serial number, as in the following example:
Figure 1-2 NAVTEX Message ID Format – Example
*1:
ID of the transmitter from which the message was received .
Examples: I in NAVAREA ⅩⅠ : Yokoha ma, Jap an
L in NAVAREA Ⅲ: Limnos, Greece
P
in NAVAREAⅠ: Ijmuiden, Netherlands
*2: Type (category) of this message (subject indicator)
Examples: A: Navigational warnings
B: Weather warnings
D:
Search and rescue (SAR), piracy or armed robbery warnings
*3:
Serial number of this message
Each message within the same category group is allocated a serial number between
00 and 99 by each transmitter. A message with number 00 is always received on
each transmission regardless of rejection settings, and will be stored in memory.
(
continued on next page )
I B 4 3
*3Message serial number
(
B3&B4characters)
*2Message Type
(
B2character)
*1Transmitter ID
(
B1character)