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v10.0.1.x for R2026a
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-22 Pin Mapping

-22 Pin Mapping — Reference information about the I/O module connector

Description

The -22 I/O interface extension converts the rear I/O lines from LVCMOS to RS422, RS485 and 3.3 V/5 V TTL and makes them accessible from the front of the enclosure. The -22 extension provides 16 differential I/O lines with RS422/485-compatible transceivers and 24 TTL I/O lines. The TTL I/O lines are distributed in 3 groups of 8 lines. All 8 lines of a group must have the same direction and pull resistor configuration. The pull resistors of the 3 I/O port groups can be configured using the mask of the Setup block.

Pin Mapping -22

PinSignalTransceiverPort PinSignalTransceiverPort
1 Configurable I/O functionalityRS422/485(+)  35 Configurable I/O functionalityRS422/485(-) 
2 Configurable I/O functionalityRS422/485(+)36 Configurable I/O functionalityRS422/485(-)
3 Configurable I/O functionalityRS422/485(+)37 Configurable I/O functionalityRS422/485(-)
4 Configurable I/O functionalityRS422/485(+)38 Configurable I/O functionalityRS422/485(-)
5 Configurable I/O functionalityRS422/485(+)39 Configurable I/O functionalityRS422/485(-)
6 Configurable I/O functionalityRS422/485(+)40 Configurable I/O functionalityRS422/485(-)
7 Configurable I/O functionalityRS422/485(+)41 Configurable I/O functionalityRS422/485(-)
8 Configurable I/O functionalityRS422/485(+)42 Configurable I/O functionalityRS422/485(-)
9 Ground 43 Ground
10 Configurable I/O functionalityRS422/485(+)44 Configurable I/O functionalityRS422/485(-)
11 Configurable I/O functionalityRS422/485(+)45 Configurable I/O functionalityRS422/485(-)
12 Configurable I/O functionalityRS422/485(+)46 Configurable I/O functionalityRS422/485(-)
13 Configurable I/O functionalityRS422/485(+)47 Configurable I/O functionalityRS422/485(-)
14 Configurable I/O functionalityRS422/485(+)48 Configurable I/O functionalityRS422/485(-)
15 Configurable I/O functionalityRS422/485(+)49 Configurable I/O functionalityRS422/485(-)
16 Configurable I/O functionalityRS422/485(+)50 Configurable I/O functionalityRS422/485(-)
17 Configurable I/O functionalityRS422/485(+)51 Configurable I/O functionalityRS422/485(-)
18 Configurable I/O functionalityTTL152 Configurable I/O functionalityTTL3
19 Configurable I/O functionalityTTL53 Configurable I/O functionalityTTL
20 Configurable I/O functionalityTTL54 Configurable I/O functionalityTTL
21 Configurable I/O functionalityTTL55 Configurable I/O functionalityTTL
22 Configurable I/O functionalityTTL56 Configurable I/O functionalityTTL
23 Configurable I/O functionalityTTL57 Configurable I/O functionalityTTL
24 Configurable I/O functionalityTTL58 Configurable I/O functionalityTTL
25 Configurable I/O functionalityTTL59 Configurable I/O functionalityTTL
26 Ground60 Ground
27 Configurable I/O functionalityTTL261 ReservedTTL 
28 Configurable I/O functionalityTTL62 ReservedTTL
29 Configurable I/O functionalityTTL63 ReservedTTL
30 Configurable I/O functionalityTTL64 ReservedTTL
31 Configurable I/O functionalityTTL65 ReservedTTL
32 Configurable I/O functionalityTTL66 ReservedTTL
33 Configurable I/O functionalityTTL67 200 mA fused +5 VTTL
34 Configurable I/O functionalityTTL68 200 mA fused +5 VTTL