Kongsberg Simrad RA83, Service Manual

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93842105-00
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AZI-IN 0 to 5V pulse about 50% duty
Zin = 10 k ohm
TRIG-IN 0 to 5V positive pulse
(Used on rising edge)
Zin = 47 ohm
VIDEO-IN
0 to –3.5V negative video
Zin = 47 ohm
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(2) Signal output for slave monitor
This display has a radar signal output function for external monitor display. The output signal
specifications are shown in Table-2.6, below.
Table-2.6 Output signal for slave monitor
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Name description
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HM-OUT
0 to 5V negative pulse
5V TTL signal
AZI-OUT* 0 to 5V pulse about 50% duty
5V TTL signal
TRIG-OUT 0 to 5V positive pulse
VIDEO-OUT
0 to –3.5 Vp-p negative video
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(3) NMEA input/output
(a) Input
This display unit has two (2) NMEA input ports. The first one's line is with the power cable. The
second one is in the optional connector. Acceptable NMEA format is the same both first and second
input port. The NMEA acceptable formatter list is shown in Table-2.8
Table-2.8 NMEA formatter
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Function name
formatter* software receive priority
[High] <----> [low]
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Latitude/Longitude
GGA, GLL, GNS
LOP GLC
Heading Information HDT
Course over ground VTG
Ship's Speed VHW, VBW
Speed over ground VTG
Set and Drift VDR
Way Point BWC, RTE, WPL, RMB
Depth DBT, DRT
Cross Track Error RMB, XTE
Sea water-Temperature MTW
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(b) Output
The display unit has NMEA output port. These ports will output OSD (Own ship data), RSD (Radar
system data) sentence. These ports are used for ATA (option) data output function.
(b)-1 ATA data output:
$RATTM, 01,0.42,292.1,T, 4.99,0.0,T, 0.4,0.0,N,,T,,,M*2A
Description:
$RA
Talker ID (Radar)
TTM Formatter