Raytheon Pathfinder ECDIS Operator's Manual page 353

a) a duplication of the ECDIS
b) carrying of a complete set of official and up−to−date paper charts
The carriage requirements under Item 2 for a reduced set of official and up−to−
date charts when using the official raster data in RCDS mode
remain unaffected by this. If the requirement for a back−up is met by the
option Item 4.b, the reduced set of charts can, of course, be considered as part
of the back−up.
15.1.1 Back−up ECDIS Version
The back−up version comprises two identical ECDIS units (Console or Table Top
Version) and a DIGITIZER (see Annex − 8).
With the exception of the AUTOPILOT, both ECDIS units are separately supplied
with the required sensor data (Gyro Compass, Log, GPS) via the Com 1....6 In-
terfaces.
The AUTOPILOT is usually connected to the ECDIS in the operational area.
In case a disturbance occurs within the tracking "ECDIS and AUTOPILOT",
switch over to another tracking mode.
Sea Charts
The ECDIS is rated for taking over and displaying different digitized charts. For
non−officially approved chart formats an official redundant set of paper charts
shall be provided (see chapter 15.1).
Position Display
The redundant position display is ensured by a separate sensor feeding.
Route Planning
Route Planning with the ECDIS
Routes may only be planned and navigated using officially approved and digi-
tized charts (S57) and in connection with an autopilot. The planning of routes
can be effected via both ECDIS systems. The ECDIS transfers the routes auto-
matically via the Ethernet.
3655DOC020102
Operator Manual
15−2
Edition: 30.MAR.2007