Appendix 5: C-Map Cm-93/2 Charts; A5.1 C-Map Charts; A5.1.1 Introduction; A5.1.2 S57 Chart Legend With C-Map Charts - Furuno FEA-2107-BB Operator's Manual

Appendix 5:
C-MAP CM-93/2 Charts

A5.1 C-MAP Charts

A5.1.1 Introduction
This electronic chart system is also compatible with C-MAP vector chart format CM-93 charts, available from C-
MAP Norway A/S. This material is used like Hydrographic Offices S57ed3 charts, but it doesn't have ENC status as
defined by IMO, IHO and IEC and thus it cannot be used to replace paper charts.
CM-93 format is encrypted to prevent unauthorised use, therefore the operator needs an authorisation code to view
any CM-93 chart. This authorisation code is entered manually.
Before any CM-93 chart can be used in the ECDIS, it is loaded into your hard disk and converted into the system's
own internal format (SENC). CM-93 charts can be updated only by loading a newer complete set of CM-93 charts.
CM-93 chart material is stored into two CD ROMs.
For further details on CM-93 charts, see Chapter 8 Vector Chart Material.
Note: SENC conversion must be done in the single workstation mode. For how to switch from multi-mode to single
mode, see the procedure in section 18.5.1 Changing mode to single or multi workstation. Further, to turn the radar
overlay off, see section 22.2 Activating Radar Overlay on the ECDIS.
A5.1.2 S57 chart legend with C-MAP charts
An example of chart legend with C-MAP chart
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