VTI Instruments EX1629 - Digital I;O

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EX1629 Basic Operation 59
DIGITAL I/O
The EX1629 provides sixteen programmable digital input/output signals, modeled on the
VT1533A digital input/output signal conditioning plug-on (SCP) module. These sixteen signals
are divided into two banks of 8 signals: Bank 0 is digital I/O signals 0 through 7 and Bank 1 is
digital I/O signals 8 through 15. Each bank is configurable as inputs (default) or outputs. Further,
when configured as outputs, each bank can be configured as a passive (resistor) pull-up or an
active (transistor) pull-up. When configured as inputs, the DIO signals (0 through 15) may be used
as trigger and/or arm sources.
Several vendors provide appropriate mating connectors. AMP part number 216166-1 (44-pin
housing) is one example.
15
30
44
1
16
31
FIGURE 3-10: DIGITAL I/O DB-44 CONNECTOR
Pin
Signal
Pin
Signal
1
DIO_BUS0
23
GND
2
DIO_BUS1
24
GND
3
DIO_BUS2
25
GND
4
DIO_BUS3
26
GND
5
DIO_BUS4
27
GND
6
DIO_BUS5
28
GND
7
DIO_BUS6
29
GND
8
DIO_BUS7
30
GND
9
DIO_BUS8
31
DIO_TRIG0
10
DIO_BUS9
32
GND
11
DIO_BUS10
33
DIO_TRIG1
12
DIO_BUS11
34
GND
13
DIO_BUS12
35
GND
14
DIO_BUS13
36
GND
15
DIO_BUS14
37
GND
16
GND
38
GND
17
GND
39
GND
18
GND
40
GND
19
GND
41
GND
20
GND
42
GND
21
GND
43
GND
22
GND
44
DIO_BUS15
TABLE 3-6: DIGITAL I/O CONNECTOR PIN ASSIGNMENTS