Furuno CSH-23F/24F manual Input Data Selection, Selection of Data at Interface Unit CS-120A

INPUT DATA SELECTION

Selection of Data at Interface Unit CS-120A

Nav data and fish data input from external equipment can be turned on or off at DIP switch DP-1 in the Interface Unit CS- 120A.

Ship's speed and bearing (for track plotting, true motion, target lock, etc.)

ON

1 2 3 4

Input Device	S1	S2
Gyrocompass, Speed log	OFF	OFF
GPS or DR (Note 1)	ON	OFF
Current Indicator	OFF	ON
DR or Current Indicator (Note 2)	ON	ON

Select navigation which feeds nav data for drawing ship's track by switch S1 and S2.

Standard setting

ON		S1
	1
		S2
	2
		S3
	3
		S4
	4
		S5
	5
	6
	7
	8

Note 1: GPS has priority. Switched automatically from GPS to DR when GPS data is absent for more than 61 seconds or ship's speed measured with GPS is 0.2 kts or less. If DR is not available when switched from GPS to DR, heading readout is fixed at 0 degrees and ship's track is plotted by using the last GPS data obtained before switching to DR. If you still require speed, heading data from GPS even though ship's speed is less than 0.2 kts, set the GPS format to DR. Note however that the heading direction becomes erratic if the ship's speed is less than 0.2 kts.

Note 2: Use this setting when both DR and current indicator are available. Normally DR data has highest priority, and is switched to current indicator data if the DR data is absent for more than 61 seconds. The heading data for the bearing scale is always provided from the current indicator. When DR data is taken from GPS be sure to set GPS output format to "DR." GPS with no "DR" output format cannot be used.

Ship's Position

Input Device	S3	S4	Use this position for GPS or DR.
Loran C	OFF	OFF	GPS data has priority.
GPS or DR (See Note.)	ON	OFF

Depth (echo sounder, color video sounder, etc.)

Input Device	S5
Echo Sounder (Note 1)	OFF
GPS or DR (Note 2)	ON

Note 1: For white line pulse when the depth data is taken from an echo sounder which does not have digital depth output.

Note 2: When the depth data is taken from an echo sounder which has digital echo output (FE-822, FCV, ED-202, IF-3000, or IF-5000).

Figure 15-1 DIP switch settings in the interface unit

15-1