MDC-1840BB/1841BB/1860BB/1810BB/1820BB Series
Chapter 10
Operation Manual
Technical References
93142122-07
10-9
10.4.2 Data input/output serial line
Port name: DATA 1,2 & 3
The connector used:
Type LTWD-06PMMP-LC
Serial Data input (listener side):
The IEC61162-1 or NMEA0183 Ver 2.30 standard signal
can be received
.
Input load: 470 + 150 ohms
Device: Opto-isolator
Type
TLP113
(Toshiba)
Serial Data output (talker side):
The IEC61162-1 standard signal can be transmitted.
Device:
RS422 Driver IC
Type LT1791CS (Linear Technology)
IN-A
IN-B
470
A Data Input
B Data Input
+Vcc
Serial data input circuit
TLP113
150
OUT-B
TX Data Output
OUT-A
Serial data output circuit
LT1791CS
1
2
3
4
5
6
Pin assignment on
Data Connector (Top view)
DATA 1,2 & 3
Pin No.
Name
1 Shield
2 OUT-A
3 OUT-B
4 IN-A
5 IN-B
6 GND
Data connector pin assignment
