Table A.12:Cn18: Com1 - Advantech UTC-315 User Manual

UART RS485 Auto Flow Control
COM2 supports RS485 auto flow control function for all UART.
When enabling the RS485 auto control function, it will automatically drive RTS# pin
to logic high or low for flow control.
To make this RS485 auto flow control function work, please be noted that the parity
and stop-bit setting has to be one of the following three settings:
(1) 8 data bits + 1 parity bit + 1stop bit
(2) 8 data bits + 1 parity bit + 2 stop bits
(3) 8 data bits + 2 stop bits
Table A.12: CN18: COM1
Part Number
Footprint
Description
Pin
1
2
3
4
5
6
7
8
9
Table A.13: CN21: Power switch
Part Number
Footprint
Description
Pin
1
2
1655000197
WF_5x2P_79_BOX_D_P1R
1655_WF_5x2P_79_BOX_D_P1R_0.Normal
Pin name
DCD
RXD
TXD
DTR#
GND
DSR#
RTS#
CTS#
RI#
1655302020
WF_2P_79_BOX_R1_D
WAFER BOX 2P 2.0mm 180D(M) DIP A2001WV2-2P
Pin name
PSIN
GND
35 UTC-315 User Manual