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v10.0.1.x for R2026a
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IO512 Pin Mapping

IO512 Pin Mapping — Reference information about the I/O module connector

Description

Pin RS422/RS485, V.35RS232RS423Pin RS422/RS485, V.35RS232RS423
DTEDCEDTEDCEDTEDCE DTEDCEDTEDCEDTEDCE
1 Ch1 AuxC +UnusedCh1 TxCCh1 RxC35 Ch3 AuxC +UnusedCh3 TxCCh3 RxC
2 Ch1 AuxC -Ch1 AuxCCh1 RxCCh1 TxC36 Ch3 AuxC -Ch3 AuxCCh3 RxCCh3 TxC
3 Ch1 DCD +UnusedCh1 TxDCh1 RxD37 Ch3 DCD +UnusedCh3 TxDCh3 RxD
4 Ch1 DCD -Ch1 DCDCh1 RxDCh1 TxD38 Ch3 DCD -Ch3 DCDCh3 RxDCh3 TxD
5 Ch1 CTS + Ch1 RTS + UnusedUnused39 Ch3 CTS + Ch3 RTS + UnusedUnused
6 Ch1 CTS - Ch1 RTS - Ch1 CTSCh1 RTSCh1 CTSCh1 RTS40 Ch3 CTS - Ch3 RTS - Ch3 CTSCh3 RTSCh3 CTSCh3 RTS
7 Ch1 RxD + Ch1 TxD + UnusedUnused41 Ch3 RxD + Ch3 TxD + UnusedUnused
8 Ch1 RxD - Ch1 TxD - Ch1 RxDCh1 TxDUnused42 Ch3 RxD - Ch3 TxD - Ch3 RxDCh3 TxDUnused
9 Ch1 RxC + Ch1 TxC + UnusedUnused43 Ch3 RxC + Ch3 TxC + UnusedUnused
10 Ch1 RxC - Ch1 TxC - Ch1 RxCCh1 TxCUnused44 Ch3 RxC - Ch3 TxC - Ch3 RxCCh3 TxCUnused
11 Ch1 RTS + Ch1 CTS + UnusedUnused45 Ch3 RTS + Ch3 CTS + UnusedUnused
12 Ch1 RTS - Ch1 CTS - Ch1 RTSCh1 CTSCh1 RTSCh1 CTS46 Ch3 RTS - Ch3 CTS - Ch3 RTSCh3 CTSCh3 RTSCh3 CTS
13 Ch1 TxD + Ch1 RxD + UnusedUnused47 Ch3 TxD + Ch3 RxD + UnusedUnused
14 Ch1 TxD - Ch1 RxD - Ch1 TxDCh1 RxDUnused48 Ch3 TxD - Ch3 RxD - Ch3 TxDCh3 RxDUnused
15 Ch1 TxC + Ch1 RxC + UnusedUnused49 Ch3 TxC + Ch3 RxC + UnusedUnused
16 Ch1 TxC - Ch1 RxC - Ch1 TxCCh1 RxCUnused50 Ch3 TxC - Ch3 RxC - Ch3 TxCCh3 RxCUnused
17 Ch1 GND51 Ch3 GND
18 Ch2 GND52 Ch4 GND
19 Ch2 CTS + Ch2 RTS + UnusedUnused53 Ch4 CTS + Ch4 RTS + UnusedUnused
20 Ch2 CTS - Ch2 RTS - Ch2 CTSCh2 RTSCh2 CTSCh2 RTS54 Ch4 CTS - Ch4 RTS - Ch4 CTSCh4 RTSCh4 CTSCh4 RTS
21 Ch2 RxD + Ch2 TxD + UnusedUnused55 Ch4 RxD + Ch4 TxD + UnusedUnused
22 Ch2 RxD - Ch2 TxD - Ch2 RxDCh2 TxDUnused56 Ch4 RxD - Ch4 TxD - Ch4 RxDCh4 TxDUnused
23 Ch2 RxC + Ch2 TxC + UnusedUnused57 Ch4 RxC + Ch4 TxC + UnusedUnused
24 Ch2 RxC - Ch2 TxC - Ch2 RxCCh2 TxCUnused58 Ch4 RxC - Ch4 TxC - Ch4 RxCCh4 TxCUnused
25 Ch2 RTS + Ch2 CTS + UnusedUnused59 Ch4 RTS + Ch4 CTS + UnusedUnused
26 Ch2 RTS - Ch2 CTS - Ch2 RTSCh2 CTSCh2 RTSCh2 CTS60 Ch4 RTS - Ch4 CTS - Ch4 RTSCh4 CTSCh4 RTSCh4 CTS
27 Ch2 TxD + Ch2 RxD + UnusedUnused61 Ch4 TxD + Ch4 RxD + UnusedUnused
28 Ch2 TxD - Ch2 RxD - Ch2 TxDCh2 RxDUnused62 Ch4 TxD - Ch4 RxD - Ch4 TxDCh4 RxDUnused
29 Ch2 TxC + Ch2 RxC + UnusedUnused63 Ch4 TxC + Ch4 RxC + UnusedUnused
30 Ch2 TxC - Ch2 RxC - Ch2 TxCCh2 RxCUnused64 Ch4 TxC - Ch4 RxC - Ch4 TxCCh4 RxCUnused
31 Ch2 DCD +UnusedCh2 TxDCh2 RxD65 Ch4 DCD +UnusedCh4 TxDCh4 RxD
32 Ch2 DCD -Ch2 DCDCh2 RxDCh2 TxD66 Ch4 DCD -Ch4 DCDCh4 RxDCh4 TxD
33 Ch2 AuxC +UnusedCh2 TxCCh2 RxC67 Ch4 AuxC +UnusedCh4 TxCCh4 RxC
34 Ch2 AuxC -Ch2 AuxCCh2 RxCCh2 TxC68 Ch4 AuxC -Ch4 AuxCCh4 RxCCh4 TxC

I/O Pin Functions

Input port Description
TxD Data transmission output.
RxD Data reception input.
TxC Output of internally generated clock.
RxC Input for externally applied clock.
RTS Request To Send Output. Activated when the Rx FIFO is almost full, which can be configured in the Setup block.
CTS Clear To Send Input.
GND Each channel's ground reference pin connects to the chassis of the target machine through a 100 Ohm resistor.
AuxC This bidirectional I/O pin has no function assigned in this version of the driver.
DCD The Data Carrier Detect pin is a bidirectional I/O pin that could be used for enabling data reception. It has no function assigned in this version of the driver and is configured as input.