Insertion and installation of the board
APCIe-7xx0
Pin Interface RS232
RS422
RS422-PEP
RS485
TTY
4 DTR
R
Termination
I
B
(CTS-) R
Termination
5
GND
GND
GND
GND
GND
20 DSR
100
Ω
I
A
(CTS+)
120
Ω
21
RTS
C
B
(RTS-)
T
Source
22 CTS
C
A
(RTS+)
R
Source
23
UART 3
RI
R
B
(Rx-)
R
B
(Rx-)
Tx/Rx-
D
Cathode
(Rx-)
A cable connection between the resistor (RS422/RS485) and R
Termination
activates the termination resistor.
2)
APCIe-7300, APCIe-7420, APCIe-7500/4C and breakout cables
Fig. 3-7: APCIe-7300, APCIe-7420, APCIe-7500/4C and breakout cables: 9-pin D-Sub connector
Table 3-2: APCIe-7300, APCIe-7420, APCIe-7500/4C and breakout cables: Pin assignment
Pin RS232
RS422
RS422-PEP
RS485
TTY
1 DCD T
A
(Tx+)
T
A
(Tx+)
T
Collector
(Tx+)
2
Rx
T
B
(Tx-)
T
B
(Tx-)
T
Emitter
(Tx-)
3 Tx R
A
(Rx+)
R
A
(Rx+)
Tx/Rx+
D
Anode
(Rx+)
4
DTR
R
Termination
I
B
(CTS-)
R
Termination
5 GND GND
GND
GND
GND
6
DSR
100
Ω
I
A
(CTS+)
120
Ω
7 RTS
C
B
(RTS-)
T
Source
8
CTS
C
A
(RTS+)
R
Source
9 RI R
B
(Rx-)
R
B
(Rx-)
Tx/Rx-
D
Cathode
(Rx-)
A cable connection between the resistor (RS422/RS485) and R
Termination
activates the termination resistor.
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