4. Cabling
JCY-1800/1850 VDR/S-VDR Installation Guide
71
DOC No. 7ZPJD0387C
Default interface condition:
Signal type EIA-422 / EIA-485
Baud rate 4800 bps / 38400bps (for AIS)
Data bits 8 (d7 = 0)
Parity None
Start bits One
Stop bits One
■ AIS data
When radar images cannot be recorded, the output data of AIS must be recorded as an alternative.
However, JCY-1800/1850 can also record both all AIS data and radar images.
■ Setup by Maintenance soft ware for recording the AIS data
Only by changing the following setup, the data outputted from AIS is recordable by the same setup as
other NMEA sentences.
• Baud rate : 38400
• Header : !
4.2.8. Recording Control Unit NDV-1800/1850 – Digital Signal Converter (NCT-72/63)
When mounting a Digital Signal Converter, connect the serial data line to ch13 through ch16 of the
RCU. For each Digital Signal Converter, two way communications port is needed to allow the writing of
the setting information or the updating of the software version.
Connection table: Communication line for DSC
RCU
Term #
DSC
Term #
Signal Name
CQD-2040
TB402
[CH-13 to 16]
CDJ-2333
TB101 [422]
1/6/11/16 [RX+] 1[TX+] NMEA OUTPUT (Positive)
2/7/12/17 [RX-] 2[TX-] NMEA OUTPUT (Negative)
3/8/13/18 [TX+] 4[RX+] INPUT FOR SETTING (Positive)
4/9/14/19 [TX-] 5[RX-] INPUT FOR SETTING (Negative)
5/10/15/20 [GND] 3[GND] GND
Cable Cramp Cable Cramp SHIELD
Cable Specification 4 (pairs) x twist pair x 0.75 mm
2,
, Shielded
Default interface condition:
Signal type EIA-422/EIA-485
Baud rate 4800 bps
Data bits 8 (d7=0)
Parity None
Start bits 1
Stop bits 1
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