MDC-1840BB/1841BB/1860BB/1810BB/1820BB Series
Chapter 10
Operation Manual
Technical References
93142122-07
10-11
1
2
3
4
7
8
Pin assignment on
Data Connector (Top view)
DATA 1,2 & 3
Pin No.
Name
1 Shield
2 IN-B
3 IN-A
4 OUT-B
5 OUT-A
6 GND
7 ALARM+
8 ALARM-
Data connector pin assignment
10.4.4 Data input/output serial line (AIS)
Port name: AIS
The connector used:
Type LTWD-08PMMP-LC
Serial Data input (listener side):
The IEC61162-1 standard signal can be received
.
Input load: 94 ohms
Device:
RS422 Driver/Receiver IC
Type LT1791CS (Linear Technology)
Serial Data output (talker side):
The IEC61162-1 standard signal can be transmitted.
Device:
RS422 Driver/Receiver IC
Type LT1791CS (Linear Technology)
OUT-B
TX Data Output
OUT-A
Serial data output circuit
LT1791CS
Isolated from ground
5
6
B Data Input
Serial data input circuit
LT1791CS
IN-A
IN-B
A Data Input
Isolated from ground
