Rs-232/422/485 Serial Port Connection; Figure 3-15：Usb Connection; Table 3-2: Rs-232 (Com1-2) & Rs-232/422/485 (Com3-4) Connector Pinouts - IEI Technology DRPC-240-TGL User Manual
Embedded system with intel tiger lake-u cpu, 8 gb ddr4 so-dimm, m.2 slot, pcie x4 slot, rs-232, rs-422/485, hdmi, dp++ and rohs
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Figure 3-15：USB Connection
DB-9 RS-232/422/485 Serial Port Connection
The DRPC-240-TGL has two RS-232 serial ports and two RS-422/485 serial ports. The
pinouts for the serial ports are listed in the Table 3-2.
PIN NO.
RS232
1
DCD#
2
RXD
3
TXD
4
DTR#
5
GND
6
DSR#
7
RTS#
8
CTS#
9
RI#
Table 3-2: RS-232 (COM1-2) & RS-232/422/485 (COM3-4) Connector
Pinouts
Page 38
DRPC-240-TGL Embedded System
RS422
RS485
TX-
TX-
TX+
TX+
RX+
RX-
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