1. Product Overview

The ABB DSQC-208A Digital Input/Output Board is a high-performance I/O module designed for ABB robot controllers such as S4, S4C, and S4C+. It provides multiple channels of digital inputs and outputs, allowing robots to interface with external automation equipment including sensors, switches, relays, valves, and other electromechanical devices.

Its modular design ensures easy installation, maintenance, and expansion.

2. Technical Specifications

General

• Model: DSQC-208A

• Type: Digital Input/Output Board

• Compatible Controllers: ABB S4 / S4C / S4C+

I/O Channel Configuration

• Digital Inputs: 16 channels (24 V DC)

• Digital Outputs: 16 channels (24 V DC, sourcing type)

• Output Load: 0.5 A (typical)

• Input Isolation: Opto-isolated

• Output Protection: Overcurrent and short-circuit protection

Electrical Characteristics

• Operating Voltage: 24 V DC

• Power Consumption: < 5 W

• Input Response Time: < 3 ms

• Output Response Time: < 2 ms

Interface & Design

• Connection Method: Multi-pin terminal block

• Communication: Internal system bus

• Mounting: Rack-mounted module

• Construction: Industrial-grade PCB

Environmental Conditions

• Operating Temperature: 0°C to +55°C

• Storage Temperature: –25°C to +70°C

• Humidity: 5%–95% non-condensing

• Protection Rating: IP20

3. Features & Advantages

• High reliability for continuous industrial operations

• Fast input/output response time

• Opto-isolated channels for enhanced noise immunity

• Fully compatible with ABB controllers

• Easy replacement and maintenance

4. Application Areas

• Robot–machine integration

• Fixture, tool, and clamp control

• Digital signal monitoring

• Relay and actuator interfacing

• Conveyors and automated material handling

• Automotive, welding, assembly production lines

• Packaging, electronics, food processing automation

• Equipment start/stop and limit detection

5. Precautions

• Power off the controller before installation or removal.

• Ensure correct wiring polarity.

• Avoid routing I/O cables parallel to high-voltage cables.

• Do not exceed rated output current.

• Use only standard 24 V DC devices.

• Wear ESD protection when handling the board.

• Keep the control cabinet clean and dry.

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