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2. CABLE CONNECTION AND WIRING
24
2.4.2
NMEA1 ports
Transmitter
This port complies with “IEC 61162-1 Ed4”.
Receiver
This port complies with “IEC 61162-1 Ed4”.
2.4.3
NMEA2 ports
This port complies with “IEC 61162-1 Ed4”.
Circuit specification is the same as NMEA1 port.
Parameter
Rating
Remarks
Circuit Diagram
“H” level
output current
-60mA
Absolute
Maximum
“L” level
output current
60mA
Absolute
Maximum
Differential
output voltage
1.5V (MIN)
5V (MAX)
Load 54
Ω
Parameter
Rating
Remarks
Circuit Diagram
Forward
Current
50mA
Absolute
Maximum
Reverse
Voltage
6V
Absolute
Maximum
Forward
Voltage
1.1V (TYP)
1.4V (MAX)
I
F
=4mA
Differential Driver
TD1_A
TD1_B
Photocoupler
490Ω
RD1_H
RD1_C
Содержание FR-8045
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