1. Product Overview

Product Name: EX9530
Model: EX-9530
Series: ExpertDAQ Industrial USB-to-Serial Converter Series
Article Number: EX9530
Manufacturer: ExpertDAQ

The ExpertDAQ EX9530 is a professional-grade, isolated USB-to-serial converter designed for industrial and automation environments. It provides a single high-speed serial communication port that can operate as RS-232, RS-422, or RS-485, with automatic mode switching and full electrical isolation. The EX9530 connects directly to a PC or USB hub via a standard USB Type-B interface, enabling reliable communication with legacy serial devices through modern USB infrastructure. It is engineered for robust performance, electrical protection, and ease of installation in demanding industrial applications.

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2. Key Features

- Triple Interface Support: Provides one serial port configurable as RS-232, RS-422, or RS-485 without jumpers (auto-switching).
- Full-Duplex RS-232/RS-422: Supports simultaneous two-way communication for high-performance data exchange.
- RS-232 Handshake Signals: Includes RTS (Request to Send) and CTS (Clear to Send) lines for hardware flow control.
- Automatic Direction Control: RS-485 communication direction is automatically managed by the converter, eliminating the need for software control.
- High Isolation Protection: 3000 VDC optical isolation between USB and serial interfaces protects against ground loops and voltage spikes.
- Transient Surge Protection: Built-in high-speed transient suppressors safeguard data lines from electrical surges.
- Automatic Baud Rate Detection: Supports baud rates from 300 bps up to 115.2 Kbps with automatic detection and configuration.
- Wide Operating Temperature Range: Reliable operation from -25°C to +75°C, suitable for industrial environments.
- Extended Communication Range: RS-422/RS-485 communication distance up to 1200 meters (1.2 km).
- Driver Compatibility: Native driver support for Windows 95/98/ME/2000/XP/10 and Linux operating systems.
- Self-Powered via USB: Draws power directly from the USB bus, requiring no external power supply.
- Status Indicators: Power and data flow LEDs for easy troubleshooting and monitoring.
- Flexible Mounting Options: Includes DIN-rail and panel mounting accessories for versatile installation.
- Compact and Durable Design: Housed in an ABS enclosure with captive mounting hardware for secure industrial deployment.

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3. Technical Specifications

- USB Controller: Compliant with USB Specification 1.1
- USB Interface Connector: USB Type-B female
- Serial Interface: RS-232 / RS-422 / RS-485 (auto-switching, jumperless)
- Handshake Support: RS-232 RTS & CTS hardware handshake
- Baud Rate Range: 300 bps to 115.2 Kbps (auto-switching)
- Isolation Voltage: 3000 VDC between USB and serial sides
- Surge Protection: Integrated transient suppression on RS-485 data lines
- Indicators: Transmission (TX), Reception (RX), and Power LEDs
- Connectors: Plug-in screw terminal block for RS-232/422/485 signals
- Terminal Wiring Capacity: Accepts AWG #12 to #22 (0.5 to 2.5 mm²) wires
- Power Requirement: USB bus-powered (self-powered)
- Power Consumption: Approximately 0.65 W
- Case Material: ABS plastic with captive mounting hardware
- Operating Temperature: 0°C to +70°C (32°F to 158°F)
- Storage Temperature: -25°C to +85°C (-13°F to 185°F)
- Humidity: 5% to 95% RH, non-condensing
- Dimensions: 7.2 cm (L) × 5.55 cm (W) × 5.0 cm (H)
- Weight: Approximately 100–150 g (typical for ABS industrial modules)
- Communication Distance: Up to 1200 m (RS-422/RS-485) depending on cable quality and termination

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4. Functionality

The EX9530 functions as a USB-to-serial communication bridge, enabling PCs and embedded systems without native serial ports to interface with industrial serial devices. It automatically detects and configures the appropriate serial communication mode (RS-232, RS-422, or RS-485) based on the connected wiring, eliminating manual jumper settings.

- RS-232 Mode: Supports full-duplex communication with RTS/CTS handshaking for devices such as PLCs, sensors, barcode scanners, and modems.
- RS-422 Mode: Provides differential full-duplex communication for long-distance, noise-immune data transmission.
- RS-485 Mode: Supports half-duplex, multi-drop communication networks with automatic direction control, ideal for distributed control systems and data acquisition networks.

The converter’s opto-isolation and surge protection ensure reliable operation in electrically noisy environments. It is plug-and-play compatible with Windows and Linux systems, appearing as a standard COM port once drivers are installed. The EX9530 is suitable for industrial automation, building management systems, SCADA, and laboratory instrumentation.

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5. Components & Accessories

Included Items:
- EX9530 USB-to-Serial Converter module
- Nylon DIN-rail mounting adapter
- SECC panel mounting bracket
- Plug-in screw terminal block for serial connections
- USB Type-B interface port
- User documentation and driver support (via manufacturer website or included media)

Optional Accessories:
- USB Type-A to Type-B cable (standard USB connection cable)
- Additional DIN-rail clips or panel brackets for multi-unit installations
- Custom-length RS-485/RS-422 shielded cables
- Termination resistors (120 Ω, 220 Ω, 330 Ω) depending on cable length and network topology

Connectors and Pin Assignments:

RS-232/RS-422/RS-485 Terminal Block:
| Pin | Name | Description |
|-----|------|-------------|
| 1 | TX+/D+ | RS-422/RS-485 transmit line, positive |
| 2 | TX-/D- | RS-422/RS-485 transmit line, negative |
| 3 | RX+ | RS-422 receive line, positive |
| 4 | RX- | RS-422 receive line, negative |
| 5 | NC | Not connected |
| 6 | TX | RS-232 transmit line |
| 7 | RX | RS-232 receive line |
| 8 | RTS | RS-232 request-to-send |
| 9 | CTS | RS-232 clear-to-send |
| 10 | F.GND | Frame ground |

USB Type-B Connector:
| Pin | Name | Description |
|-----|------|-------------|
| 1 | +5V | USB bus power |
| 2 | Data– | USB differential data line (negative) |
| 3 | Data+ | USB differential data line (positive) |
| 4 | GND | USB ground |

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6. Installation & Setup

System Requirements:
- Available USB port (USB 1.1 or higher)
- Supported operating systems: Windows 95/98/ME/2000/XP/10, Linux
- No external power supply required (USB bus-powered)

Installation Steps:
1. Connect the EX9530 to a PC or USB hub using a standard USB Type-A to Type-B cable.
2. The system automatically detects the new hardware.
3. For older Windows versions, use the “Add New Hardware Wizard” to install the driver manually.
4. Once installed, the EX9530 appears as a standard COM port in the Device Manager.
5. Connect the serial device to the terminal block according to the required interface (RS-232, RS-422, or RS-485).
6. Configure the communication parameters (baud rate, parity, stop bits) in your application software.

Mounting Options:
- DIN-Rail Mounting: Attach the included nylon DIN-rail adapter to mount the converter on standard 35 mm DIN rails.
- Panel Mounting: Use the SECC panel bracket for fixed installations inside control cabinets or equipment panels.

Termination Resistors:
For RS-485 networks, proper termination is essential to prevent signal reflections:
- 120 Ω for cable lengths up to 1.2 km
- 220 Ω for cable lengths up to 600 m
- 330 Ω for cable lengths up to 300 m
Termination resistors can be installed on-board (JP1 jumper) or externally via R1 (TX/DATA) and R2 (RX) positions.

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7. Performance & Capabilities

- Data Rate: 300 bps to 115.2 Kbps (auto-detecting)
- Communication Distance: Up to 1200 meters for RS-422/RS-485
- Isolation: 3000 VDC optical isolation between USB and serial interfaces
- Surge Protection: Integrated transient voltage suppressors on all data lines
- Power Efficiency: Consumes only 0.65 W from USB bus power
- Reliability: Designed for continuous 24/7 operation in industrial environments
- Temperature Tolerance: Operates reliably from 0°C to +70°C, with storage capability down to -25°C
- Signal Integrity: Differential signaling and isolation minimize noise and ground loop interference
- Automatic Configuration: No manual jumpers or switches required for mode selection or baud rate setup
- Limitations: Maximum baud rate limited to 115.2 Kbps; not suitable for ultra-high-speed serial applications beyond this range

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8. Standards & Compliance

- USB Compliance: Fully compliant with USB Specification 1.1
- Serial Standards: Conforms to EIA/TIA RS-232, RS-422, and RS-485 standards
- Isolation Standard: 3000 VDC optical isolation per industrial safety requirements
- Environmental Compliance: Designed for industrial temperature and humidity ranges
- EMC Protection: Internal transient suppression for surge and ESD protection
- Mounting Standards: Compatible with standard 35 mm DIN-rail and panel mounting systems
- Operating System Compatibility: Certified drivers for Windows and Linux platforms
- Safety and Reliability: Designed for industrial-grade reliability and long-term operation

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9. Additional Information

Warranty:
Typically covered by ExpertDAQ’s standard limited warranty (duration varies by region, commonly 1–2 years). The warranty covers manufacturing defects and hardware failures under normal operating conditions.

Technical Support:
ExpertDAQ provides comprehensive technical support, including driver downloads, firmware updates, and configuration guides. Support resources are available through the manufacturer’s website and authorized distributors.

Maintenance:
The EX9530 requires minimal maintenance. Periodic inspection of terminal connections and cable integrity is recommended. Ensure that the device operates within specified environmental limits to maintain long-term reliability.

Firmware & Driver Updates:
Updated drivers and firmware are periodically released to enhance compatibility and performance. Users can download the latest versions from ExpertDAQ’s official support portal.

Serviceability:
The module is designed for plug-and-play replacement. In case of failure, the unit can be easily swapped without reconfiguration, as all settings are managed automatically by the host system.

Applications:
- Industrial automation and control systems
- SCADA and telemetry networks
- Building management systems (BMS)
- Laboratory instrumentation and data acquisition
- PLC and HMI communication
- Serial device networking and remote monitoring

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Summary

The ExpertDAQ EX9530 is a robust, isolated USB-to-serial converter engineered for industrial communication environments. It bridges modern USB interfaces with legacy serial standards (RS-232, RS-422, RS-485) through automatic configuration and high electrical protection. With 3000 VDC isolation, surge suppression, and wide temperature tolerance, it ensures reliable data transmission in harsh conditions. Its plug-and-play design, self-powered operation, and flexible mounting options make it ideal for system integrators, automation engineers, and industrial IT professionals seeking a dependable solution for serial connectivity.