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APPENDIX 4 SENTENCE DESCRIPTION
I/O Sentences
Input sentences (IEC 61162-1)
GNSS port: GGA, ZDA, GNS, RMC
BAM port: ACN
Output sentence (IEC 61162-1)
BAM port: ALF, ALC, HBT, ARC
Format of GNSS port, BAM port and Data port
Baud rate :4800,9600,38400,115200
Bits:8, N, 1
ACN – Alert command
$--ACN,hhmmss.ss,aaa,x.x,x.x,c,a*hh <CR><LF>
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+----------------------- 2
+---------------------------- 1
1. Time
2. Manufacturer mnemonic code
3. Alert Identifier
4. Alert Instance, 1 to 999999
5. Alert command, A, Q, O or S
6. Sentence status flag
7. Checksum (
same as below
GGA -Global positioning system (GPS) fix data
$--GGA,hhmmss.ss,llll.lll,a,yyyyy.yyy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh<CR><LF>
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+---+---------------------------------- 2
+-------------------------------------------- 1
1. UTC of position
2. Latitude, N/S
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+------------------------- 3
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+----+------------------------ 3
NVR-3000 OPERATION MANUAL & INSTALLATION MANUAL
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+------------------ 10
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+--+------------------------- 7
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NVR-3000 OM.E 20230109-08
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