7-4 
 
2  Design, general 
2.1  Display windows 
There are two small and one large display windows on the internal Printed Circuit 
Board.  Depending on type of Display some windows can be partly or completely 
covered by the front panel foil. The two small windows are positioned above each 
other in the upper area of the front, from here on called SPEED WINDOW 1 and 
SPEED WINDOW 2.  
The large window is positioned in the lower area of the front, from here on called 
MODE WINDOW. An exemption is made for type NWW-85 Docking Display where 
only the centre area of the MODE WINDOW is used as SPEED WINDOW 3. 
 The display elements in each SPEED WINDOW consist of 90 surface mounted Light 
Emitting Diodes/LEDs positioned to perform three digits in a 7-segment manner.  
The MODE WINDOW consists of 1056 LEDs positioned in 11 rows by 96 columns 
making it possible to display both text and digits in various sizes (alpha-numeric).  
2.2  Direction arrows, status indications and backlight 
71 LEDs are used for direction arrows, status indication and backlight illumination of 
text printed on the panel foil.  
2.3  Push buttons 
To operate the Display, there are 6 push buttons positioned below the MODE 
WINDOW. 
3  Function, general 
All Display versions will decode all defined messages and display all possible 
information as available. Generally, all Displays can enter all requested modes. 
3.1  MODE WINDOW 
The MODE WINDOW can display a range of information, e.g. distance counter(s), 
speed(s), depth and Rate-of-Turn depending on which presentation modes are enabled 
in the Display set-up (See 6. Set-up of Display for detailed information). All Displays 
are delivered with certain modes pre-set as default that corresponds to the specific 
Display version but all modes can be enabled in the Display set-up as desired by the 
user. 
 
Every time the Mode button is pressed, the MODE WINDOW will display the next 
option from the list of chosen options. When Mode and   buttons are pressed 
simultaneously the previous option (= going backwards) in the list will be displayed. 
 
When the Trip/DIST button is pressed and Trip or DIST is not displayed, the first Trip 
or DIST will be displayed.  
When the Trip/DIST button is pressed and Trip or DIST is displayed the next Trip or 
DIST in the list will be displayed. 
When the Trip/DIST button is pressed and the last Trip or DIST is displayed the first 
Trip or DIST will be displayed.