Programming the pio-48.pc104 – Impulse PIO-48.PC104 (3701) User Manual
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© Sealevel Systems, Inc.
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PIO-48.PC104 User Manual
Physical Connection
The port signals for the PIO-48.PC104 are physically connected via two 50-pin box
headers. P5 provides the connections for ports A1-C1 and P2 provide the
connections for A2-C2. These headers are compatible with the industry standard 50-
pin ribbon/IDC type cabling. This allows for a direct cabling connection between the
PIO-48.PC104 and a Solid State Relay Rack (i.e. PB-8. PB-16, PB-24 etc.)
The following table shows the correlation between the port addresses and the 50-pin
connections.
Description
Pin #
Port A
A0 47
A1 45
A2 43
A3 41
A4 39
A5 37
A6 35
A7 33
Port B
B0 31
B1 29
B2 27
B3 25
B4 23
B5 21
B6 19
B7 17
Port C
C0L 15
C1L 13
C2L 11
C3L 9
C4U 7
C5U 5
C6U 3
C7U 1
GND
All Even pins
+5V
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