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4com connectors – Kontron ETXexpress-AI User Manual

Page 19

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Kontron ETXexpress-AI User’s Guide



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4

COM Connectors

The pin-outs for ETXexpress® interface connectors X1A and X1B are documented
for convenient reference. See the PICMG COM Express™ Specification on the
PICMG website and COM Express™ Design Guide on the Kontron website for
detailed, design-level information.

Figure 3: COM Express Connector Locations

Table 2: General Signal Description

Type

Description

I/O-3.3

Bi-directional 3,3 V IO-Signal

I/O-5T

Bi-dir. 3,3V I/O (5V Tolerance)

I/O-5

Bi-directional 5V I/O-Signal

I-3.3

3,3V Input

I/OD

Bi-directional Input/Output Open Drain

I-5T

3,3V Input (5V Tolerance)

OA

Output Analog

OD

Output Open Drain

O-1.8

1.8V Output

O-3.3

3.3V Output

O-5

5V Output

DP-I/O

Differential Pair Input/Output

DP-I

Differential Pair Input

DP-O

Differential Pair Output

PU

Pull-Up Resistor

PD

Pull-Down Resistor

PWR

Power Connection