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106

DIGITAL INTERFACE (IEC61162-1)

D Output sentences (IEC61162-1)

DSC and DSE

D Output interval

DSC, DSE: Irregular output (Output immediately after receiving a DSC call.)

D Output sentence description

• DSC—Digital selective calling information

$CDDSC, xx, xxxxxxxxxx, xx, xx, xx, x.x, x.x, xxxxxxxxxx, xx, a, a*hh<CR><LF>

1 2 3 4

5 6 7

1 Format specier (2 digits) 7 Time or Telephone Number (Maximum 16 digits)

2 Address (10 digits) 8 MMSI of ship in distress (10 digits or NULL)

3 Category (2 digits or NULL) 9 Nature of distress (2 digits or NULL)

4 Nature of distress or rst telecommand (2 digits or NULL) 10

Acknowledgment (R=Acknowledge request, B=Acknowledgment,

S=Neither (end of sequence))

5 Type of communication or second telecommand (2 digits) 11 Expansion indicator (E or NULL)

6 Position or Channel/frequency (Maximum 16 digits)

• DSE—Expanded digital selective calling

$CDDSE, x, x, a, xxxxxxxxxx, xx, c--c, .........., xx, c--c*hh<CR><LF>

1 2 3 4 5 6 7

1 Total number of sentences (xed value) 6

Data set ‘1’ (code eld, Enhanced position resolution, Maximum 8

characters), NULL

2 Sentence number (xed value) 7 Additional data sets*, NULL

3 Query/reply ag (xed value A=Automatic) 8 Data set ‘n’ (NULL)*

4 Vessel MMSI (10 digits) 9 Data set ‘n’ (NULL)*

5 Data set ‘1’ (code eld, xed value 00)

This transceiver outputs only “Data set 1.”

■ I/O Sentences (Continued)

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