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CP6500-V
Functional Description
ID 28945, Rev. 01
© 2005 Kontron Modular Computers GmbH
Page 2 - 15
P R E L I M I N A R Y
2894
5.01.UG.VC.050304/09095
2
2.2.13
COM Port
One PC compatible serial 9-pin, D-SUB port is available, which is fully compatible with the
16550 controller and includes a complete set of handshaking and modem control signals,
maskable interrupt generation and data transfer of up to 460.8 kB/s.
Figure 2-5: PC-Compatible D-SUB Serial Connectors J9 (COM1)
The COM interface may be configured as either RS232 or RS422 by setting the appropriate
solder jumpers. The standard setting of the COM port envisages the RS232 configuration.
RS422 configuration:
The RS422 interface uses two differential data lines RX and TX for communication (Full-Duplex).
The following table provides the pinout for the serial port connector J9, which depends on the
interface configuration.
Table 2-10: Serial Port Connectors CON9 (COM1) Pinout
PIN
RS232
(STANDARD PC)
RS422
1
DCD
+RXD
2
RXD
NC
3
TXD
+TXD
4
DTR
NC
5
GND
GND
6
DSR
-RXD
7
RTS
NC
8
CTS
-TXD
9
RIN
NC
1
5
6
9
Содержание CP6500-V
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