Measurement-computing StrainBook/616 Bedienungsanleitung Seite 98

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Connections for 8-Bit Mode
To sample just 8 digital input signals use the following pinout, providing that the StrainBook is in 8-bit mode. Note that
WaveView is pre-set to use the 16-Bit mode. In 8-bit mode D15 is the most significant bit, and D8 is the least. The
address lines, read strobe, write strobe, and enable signal can be left disconnected.
o
8 Digital I/O Lines (D8 – D15)
o 5 Address Lines (A0 – A4) *
o Active-low Digital I/O Enable output (EN-) *
o Active-low Digital I/O Write Strobe (WR-) *
o Active-low Digital I/O Read Strobe (RD-) *
o TTL Trigger Input (TTLTRG)
o +15 V (pin 23), -15 V (pin 22), 50 mA max. (each)
o two +5 V power (pins 19 and 21), 250 mA max. (total)
o two Digital Grounds (pins 24, and 25)
o Digital Clock (pin 18), only used for WBK17 applications
o External Clock Input (pin 20)
DB25 Pinout, 8-Bit Mode
D8 through D15 Digital I/O data lines
A0 through A4 * Digital I/O address lines
EN- * Active-low digital I/O enable
RD- * Active-low read strobe
WR- * Active-low write strobe
TTLTRG TTL trigger input
+5 VDC 250 mA maximum
+15,-15 VDC 50 mA maximum (each)
Digital Grounds Pins 24, and 25
Digital Clock Pin 18, only used for WBK17
applications
External Clock Input Pin 20
DB25 Pinout for 8-Bit Mode
* Can be left disconnected.
8-2 Digital I/O, TTL Trigger, and External Clock 977794 StrainBook/616
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