User’s Manual
19
7
GND
15
SCL
8
GND
Note: NC represents —No Connection
2.4.8 COM1/2 Connector
The KMDA-3601 provides 2 serial ports of COM1/2 by 2*D-sub 9-pin connectors. COM1/2
can be
configured as RS232
、
RS422 or RS485 by BIOS setup.
Table 2.9 for pin assignments.
Figure 2.16 COM1/2 Connector
Table 2.9: COM1/2 Serial Ports Pin Assignments
Pin
RS-232 Signal
RS-422 Signal RS-485 Signal
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
2.4.9 COM3/4 Connector
COM3/4 are only for RS232. We can configure the power mode(RI/5V/12V) by jumper’ setting, please
refer to the chapter “2.3.2 JP3/JP4-COM3/COM4 RI/5V/12V Power supply Select” .
Table 2.10 for pin
assignments.
Содержание KMDA-3601
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Страница 38: ...User s Manual 31 BIOS Setup CHAPTER 3 ...
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