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CP-RIO3-04 Rear I/O
CP3003-SA
Page C - 8
ID 1052-6929, Rev. 3.0
D R A F T — F O R I N T E R N A L U S E O N L Y
C.5.4
COM Interface
The CP-RIO3-04 rear I/O module provides two identical COM ports for connecting RS-232 de-
vices to the CP-RIO3-04 rear I/O module.
On the 8 HP version, the onboard 10-pin COM connectors J2 and J3 are routed to the 9-pin
D-Sub COM connectors J2a and J3a located on the front panel.
On the 4 HP version, the COM signals are available only on the onboard 10-pin COM
connectors J2 and J3.
The following figure and table provide pinout information for the 9-pin D-Sub COM connectors
J2a and J3a located on the front panel of the 8 HP version.
The following figure and table provide pinout information for the onboard serial port connectors
J2 and J3.
Figure C-7: COM Connectors J2a (COMA)
and J3a (COMB)
J3a
J2a
6
9
5
1
6
9
5
1
Table C-5: COM Connectors J2a (COMA)
and J3a (COMB) Pinout
PIN
SIGNAL
DESCRIPTION
I/O
1
DCD
Data carrier detect
I
2
RXD
Receive data
I
3
TXD
Transmit data
O
4
DTR
Data terminal ready
O
5
GND
Signal ground
--
6
DSR
Data send request
I
7
RTS
Request to send
O
8
CTS
Clear to send
I
9
RI
Ring indicator
I
Содержание CP3003-SA
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