Specifications

Features
Plug-in I/O Cards
10-50
PCL-720+
Specifications
Digital Input
Channels 32
Compatibility 5 V/TTL
Input Voltage Logic 0: 0.8 V max.
Logic 1: 2.0 V min.
Digital Output
Channels 32
Compatibility 5 V/TTL
Output Voltage Logic 0: 0.5 V max.
Logic 1: 2.0 V min.
Output Capability Sink: 0.5 V max @ 24 mA
Source: 2.0 V min. @ 15 mA
Counter/Timer
Channels 3
Resolution 16 bits
Compatibility 5 V/TTL
Max. Input Frequency 1 MHz
Reference Clock
Internal: Selectable 1 MHz, 100 kHz, or 10 kHz base clock
External Clock Frequency: Jumper selectable divider: x2, x1, x0.5, and x0.25
Programmable Counter 6
Modes
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64-ch TTL Digital I/O Card w/Counter
32 TTL-level digital input channels
32 TTL-level digital output channels
High-output driving capacity
Low-input loading
3 programmable counter/timer channels
User configurable clock source
Breadboard area for custom circuits
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General
Breadboard Area 540 (30 x 18) plated-through "donuts", each with a
.036" hole on 0.10" centers. Further, provide +5 V on
the left side, and provide GND on the right side
Bus Type PCI-1735U: Universal PCI V2.2
PCL-720+: ISA
I/O Connectors 5 x 20-pin male ribbon-cable connectors
Dimensions (L x H) 185 x 100 mm (7.3” x 4”)
Power Consumption Typical: +5 V @ 500 mA
Operating Temperature 0 ~ 60° C (32 ~ 140° F)
Storing Temperature -20 ~ 70° C (-4 ~ 158° F)
Storing Humidity 5 ~ 95% RH, non-condensing (refer to IEC 68-2-3)
Ordering Information
PCL-720+ 64-ch TTL Digital I/O Card w/Counter
PCL-10120-1 IDC-20 Flat Cable, 1 m
PCL-10120-2 IDC-20 Flat Cable, 2 m
PCLD-780 2*IDC-20 Wiring Terminal
PCLD-782 Opto-Isolated D/I Board
PCLD-785 16-ch Relay Output Terminal
PCLD-786 SSR and Relay Driver Board
PCLD-885 16-ch Power Relay Output Terminal
ADAM-3920 20-Pin Flat Cable Terminal, DIN-rail Mount
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Introduction
The PCL-720+ digital I/O and counter cards are PC-compatible add-on cards with 32 digital input channels, 32 digital output channels and three programmable counter/timer
channels. Their digital I/O channels are TTL-compatible and use 74LS244 driver/ buffer circuits to provide high output driving capacity. These buffered circuits also require lower
input loading current than regular TTL circuits. The cards' 8254 programmable counter/timer provides three flexible 16-bit counter/timer channels. You can generate waves and pulses
by programming the 8254. Jumper settings determine the clock crystal frequency. The cards also includes a breadboard area perfect for customized circuits.
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: [phone]-Outside Local Area: [phone]-www.stevenengineering.com