Measurement-computing PCIM-DAS16JR/16 Instrukcja Użytkownika Pobierz pdf (Strona 24)

PCIM-DAS16JR/16 User's Guide Specifications

Counter

Counter type 82C54

Configuration 3 down counters, 16-bits each

Counter 1 source

(software selectable)

! External source from main connector (pin 21*)

! 100 kHz internal source

Counter 1 gate External gate from main connector (pin 24*)

Counter 1 output Available at main connector (pin 2)

Counter 2 source

(jumper selectable at P2)

! Internal 1 MHz

! Internal 10 MHz

Counter 2 gate

(software enable/disable)

External source from main connector (pin 25*)

Counter 2 output Internal only, chained to counter 3 source

Counter 3 source Counter 2 output

Counter 3 gate

(software enable/disable)

External source from main connector (pin 25*)

Counter 3 output Available at main connector (pin 20).

Programmable as ADC Pacer clock.

Clock input frequency 10 MHz max.

High pulse width (clock input) 30 ns min.

Low pulse width (clock input) 50 ns min.

Gate width high 50 ns min.

Gate width low 50 ns min.

Input high 2.0 volts min., 5.5 volts absolute max.

Input low 0.8 volts max., -0.5 volts absolute min.

Output high 3.0 volts min. @ -2.5 mA

Output low 0.4 volts max. @ 2.5 mA

Crystal oscillator frequency 10 MHz

Frequency accuracy 50 ppm

* Pins 21, 24, and 25 are pulled to logic high via 10 K resistors.

Environmental

Operating temperature ran e g 0 to 70 °C

Storage temperature range -40 to 100 °C

Humidity 0 to 95% non-condensing

Mechanical

Card dimensions PCI half card: 136.5 mm (L) x 106.9 mm (W) x 11.65 mm (H)

Form factor Universal PCI keying. Compatible with 3.3 V/5 V 32-bit, 33 MHz back planes.

Main connector and pin out

Connector type 37-pin male "D" connector

Connector compatibility Identical to the CIO-DAS16JR/16 connector

Compatible accessory products CIO-MINI37

CIO-SCB37

CIO-SSH-16

Compatible cables C37FF-x

C37FFS-x

6-4

1 2 ... 19 20 21 22 23 24 25 26 27

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