20 ARS-2110 User Manual
which offer RS-232/422/485 serial communication interface. The default setting is
RS-232 and RS-422/485 can be selected in BIOS. The BIOS setting of
RS-232/422/485 can be found in Chapter 3.
Figure 2.24 COM Connector
Table 2.22 COM connector
Pin
RS-232
RS-422
RS-485
1
DCD#
TX-
Data -
2
RXD
TX+
Data +
3
TXD
RX+
NC
4
DTR#
RX-
NC
5
GND
GND
GND
6
DSR#
NC
NC
7
RTS#
NC
NC
8
CTS#
NC
NC
9
RI#
NC
NC
2.3.1.5
USB 3.0 Connector
ARS-2110 supports USB3.0 interface which gives a complete Plug & Play and hot
swapping with up to 127 external devices.
Figure 2.25 USB 3.0 Connector
Table 2.23 USB 3.0 Connector
Pin
Signal
Pin
Signal
1
+5V
2
USB_data-
3
U
4
GND
5
SSRX-
6
SSRX+
7
GND
8
SSTX-
9
SSTX+
2.3.1.6
USB 2.0 Connector
ARS-2110 supports USB2.0 interface which gives a complete Plug & Play and hot
