National Instruments NI 1483, Руководство пользователя и технические характеристики

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© National Instruments Corporation 7 NI 1483R User Guide and Specifications
D-Sub Connector
The 15-pin female high-density D-Sub connector connects to general purpose digital I/O, which
includes four TTL I/O lines, two optically isolated inputs, and two RS-422 quadrature encoder inputs.
Table 3 shows the connector assignments and descriptions.
Table 3. NI 1483 15-pin D-Sub Connector Pin Assignments
Connector Pin Signal Name Description
1 TTL I/O 0 TTL external trigger/Digital I/O line.
2 Iso Input 0+ 30 V isolated input only line.
3 Phase A+ Quadrature encoder Phase A positive
connection for single-ended or differential
signals. Can also be used as a digital input for
triggering.
4 Phase B– Quadrature encoder Phase B negative
connection for differential signals.
5 NC No connection.
6 TTL I/O 1 TTL external trigger/Digital I/O line.
7 TTL I/O 2 TTL external trigger/Digital I/O line.
8 Iso Input 1+ 30 V isolated input only line.
9 Phase B+ Quadrature encoder Phase B positive
connection for single-ended or differential
signals. Can also be used as a digital input for
triggering.
10 TTL I/O 3 TTL external trigger/Digital I/O line.
11 Digital Ground Direct connection to digital ground on the
NI 1483.
12 Iso Input 0–
Iso Input 1– Isolated reference.
13 Phase A– Quadrature encoder Phase A negative
connection for differential signals.
14 Digital Ground Direct connection to digital ground on the
NI 1483.
15 NC No connection.
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