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Sunny Island
Please read chapter 8.3 carefully!
3.7.5 Assignment of COM3 Interface
The service interface COM3 can only be used as an RS232 interface. It is meant for
service, maintenance and necessary software updates. To be able to update the
software an additional PC programme is required. Table 3.4 shows the pin assign-
ment.
PIN
1
2
3
4
5
6
7
8
9
Table 3.4: Assignment of Sunny Island interface (COM3)
BWRI33-12:EE
Installation & Operating Instructions
RS232 Signal
DCD
/RXD
/TXD
DTR
GND
DSR
RTS
CTS
RI
- 50 -
SMA Regelsysteme GmbH
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