Serial Port 2 - Viola Systems Arctic Substation Gateway User Manual

User Manual
Arctic Substation Gateway
DIP switch configuration for serial port 1 is described in table 12. By default all
are set to "0" position (RS-232 mode). DIP switches 2-4 apply only when port
is set in RS-485 mode (DIP switch 1 on "1" position).
Table 12: Serial port 1 DIP switches
Number Function
1
2
3
4
Serial port pinouts in RS-422 and RS-485 modes are described in the table
below.

2.5.3 Serial port 2

Table 13: Serial port 2
Figure 6. Connector diagram
Serial port 2 supports only RS-232 data mode.
Firmware Version 2.4.x
Pin
8
9
State
RS-232 / 0 = RS-232, 1 = RS-485
RS-485
FULL / HALF 0 = FULL, 1 = HALF
BIAS 0 = OFF, 1 = ON
TERMINATION 0 = OFF, 1 = ON
15
Function
CTS
RI
Explanation
Selects serial port operation
mode
Selects between half ( 2-
wire) and full duplex (4-wire)
RS-485 biasing
RS-485 termination
Table 14: Table 15: Serial port
Connector pinout configuration
Baud rate
Pin Function
1 DCD
Data bits
2 RXD
Parity
3 TXD
Stop bits
4 DTR
Flow
5 GND
control
6 DSR
7 RTS
8 CTS
9 RI
115 -
230400
8
No parity
1
No flow
control
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