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Pin
Name
Number
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
The serial port 2 can be configured either as a half RS-232 or an RS-422/485 (DTE Master). The pin
description of this port is as follows
Pin
RS-422
Number
RS-485
1
NC
+
2
RXD
–
3
TXD
4
NC
5
GND
6
NC
7
TXD+
8
RXD–
9
NC
Note:
Make sure that you DO NOT connect RS-422 or RS-485 devices to a port which has been
configured to operate as an RS-232 port.
Ethernet Connector
Arctic has an RJ45 connector for 10/100 Mbps Ethernet connection. Maximum length of the Ethernet
cable is 100m.
Note:
The cross-connected cable is only for connecting the Arctic to the PC's network interface
card. When connecting to a local network (e.g. hub or switch), a direct Ethernet cable must be
used.
The figure and pin description of the Arctic's RJ45 Ethernet connector is as follows:
8
1
Arctic IEC-104 Gateway
Direction Explanation
IN
Data Carrier Detect
IN
Received Data
OUT
Transmitted Data
OUT
Data Terminal Ready. Handshake output
-
Signal ground.
IN
Data Set Ready. Handshake input
OUT
Ready To Send. Handshake output
IN
Clear To Send. Handshake input
IN
Ring Indicator
Direction Explanation
NC
Not connected
IN
Non-inverted data input
OUT
Inverted data output
NC
Not connected
-
Not connected
NC
Not connected
OUT
Non-inverted data output RTS
IN
Inverted data input
NC
Not connected
Pin
Name
Number
1
Rx+
2
Rx–
3
Tx+
4
NC
5
NC
6
Tx–
7
NC
8
NC
RS-232
NC
RXD
TXD
NC
GND
NC
CTS
NC
Direction
Explanation
IN
Data Receive Positive
IN
Data Receive Negative
OUT
Data Transmit Positive
OUT
Data Transmit Negative
12
User's Manual
See serial port 1
See serial port 1
Viola Systems Ltd.
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