Signal connections – Measurement Computing USB-DIO96H User Manual
Page 12
USB-DIO96H User's Guide
Functional Details
12
Figure 5 shows the DIP switches used to configure Port 1.
Figure 5. Pull-up/down switch configuration
All DIP switches are configured by default for pull-up (
PU
). To configure for pull-down slide the switch to the
PD
position.
Signal connections
The USB-DIO96H has four rows of screw terminals labeled
Port 1
through
Port 4
. Each row has
26 connections. The screw terminals provide the following connections:
96 digital I/O lines (
A0
to
C7
for Port 1 through Port 4)
One external event counter input (
CTR
)
Three VDD power outputs (
5V
)
Four ground terminals (
GND
)
Use 14 AWG to 30 AWG wire for your signal connections. Each screw terminal is identified with a label on the
board and on the underside of the enclosure lid. Refer to the table "
Board labels and associated signal names
"
for the signal name associated with each board label.
Caution! Keep the length of stripped wire at a minimum to avoid a short to the enclosure! When connecting
your field wiring to the screw terminals, use the strip gage on the terminal strip, or strip to 5.5 mm
to 7.0 mm (0.215 in. to 0.275 in.) long.
Screw terminal pinout
Board label
Signal name
Board label
Signal name
Port 1
A0
P1A0 (FIRSTPORTA Bit 0)
Port 3
A0
P3A0 (THIRDPORTA Bit 0)
A1
P1A1 (FIRSTPORTA Bit 1)
A1
P3A1 (THIRDPORTA Bit 1)
A2
P1A2 (FIRSTPORTA Bit 2)
A2
P3A2 (THIRDPORTA Bit 2)
A3
P1A3 (FIRSTPORTA Bit 3)
A3
P3A3 (THIRDPORTA Bit 3)
A4
P1A4 (FIRSTPORTA Bit 4)
A4
P3A4 (THIRDPORTA Bit 4)
A5
P1A5 (FIRSTPORTA Bit 5)
A5
P3A5 (THIRDPORTA Bit 5)
A6
P1A6 (FIRSTPORTA Bit 6)
A6
P3A6 (THIRDPORTA Bit 6)
A7
P1A7 (FIRSTPORTA Bit 7)
A7
P3A7 (THIRDPORTA Bit 7)
B0
P1B0 (FIRSTPORTB Bit 0)
B0
P3B0 (THIRDPORTB Bit 0)
B1
P1B1 (FIRSTPORTB Bit 1)
B1
P3B1 (THIRDPORTB Bit 1)
B2
P1B2 (FIRSTPORTB Bit 2)
B2
P3B2 (THIRDPORTB Bit 2)
B3
P1B3 (FIRSTPORTB Bit 3)
B3
P3B3 (THIRDPORTB Bit 3)
B4
P1B4 (FIRSTPORTB Bit 4)
B4
P3B4 (THIRDPORTB Bit 4)
B5
P1B5 (FIRSTPORTB Bit 5)
B5
P3B5 (THIRDPORTB Bit 5)
B6
P1B6 (FIRSTPORTB Bit 6)
B6
P3B6 (THIRDPORTB Bit 6)
B7
P1B7 (FIRSTPORTB Bit 7)
B7
P3B7 (THIRDPORTB Bit 7)
C0
P1C0 (FIRSTPORTC Bit 0)
C0
P3C0 (THIRDPORTC Bit 0)
C1
P1C1 (FIRSTPORTC Bit 1)
C1
P3C1 (THIRDPORTC Bit 1)
C2
P1C2 (FIRSTPORTC Bit 2)
C2
P3C2 (THIRDPORTC Bit 2)
C3
P1C3 (FIRSTPORTC Bit 3)
C3
P3C3 (THIRDPORTC Bit 3)
C4
P1C4 (FIRSTPORTC Bit 4)
C4
P3C4 (THIRDPORTC Bit 4)
C5
P1C5 (FIRSTPORTC Bit 5)
C5
P3C5 (THIRDPORTC Bit 5)
C6
P1C6 (FIRSTPORTC Bit 6)
C6
P3C6 (THIRDPORTC Bit 6)
C7
P1C7 (FIRSTPORTC Bit 7)
C7
P3C7 (THIRDPORTC Bit 7)
5V
5V
5V
5V
GND
GND
GND
GND