RS232
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Wieland Electric GmbH | BA000917 | 01/2019 (Rev. B)
7
RS232
7.1
RS232 description
The expansion port RS232 is created as expansion port which enables to use of the next
hardware interface of Wieland routers for next signal processing. This interface is physi-
cally connected to the RJ45 connector on the appropriate router. The expansion port
RS232 is internal supplies from appropriate router. Against bus overload the expansion
port RS232 is protect.
Expansion port RS232 is possible fitted into PORT1 and PORT2.
7.2
Expansion port connection
Panel socket RJ45 (RS232 – DCE - Data Communication Equipment)
Pin
no.
Signal mark Description
Direction
1
RTS
Request To Send
Input
2
CTS
Clear To Send
Output
3
DTR
Data Terminal Ready
Input
4
DSR
Data Set Ready: Connect to +3 V trought R 330 Ohm
Output
5
GND
Signal ground
6
RXD
Receive data
Output
7
CD
Carrier Detect
Output
8
TXD
Transmit Data
Input
Example of the meter connection to router:
NOTICE
Table 14: Connection
of RS232 connector
Figure 12: RS232 port
connector
Figure 13: Meter con-
nection to router