Comprehensive Product Summary – EX9524D Addressable RS422/485 to RS232 Converter

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### 1. Product Overview

Product Name: EX9524D
Model Number: EX9524D
Series: EX952N Series – Addressable RS422/485 to RS232 Converter
Article Number: EX9524D
Manufacturer: Topsccc (TopSCCC Industrial Automation)

The EX9524D is part of the EX952N family of industrial communication converters designed to bridge RS422/RS485 networks with RS232-based devices. It integrates a high-performance Intel 80188 CPU running at 40 MHz, embedded ROM-DOS (Datalight) operating system, and multiple serial communication ports. The device is engineered for industrial automation, process control, and data acquisition systems requiring reliable, addressable serial communication across mixed RS232 and RS485 infrastructures.

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### 2. Key Features

- Addressable RS422/485 to RS232 Conversion: Enables multiple RS232 devices to communicate over a shared RS485 network using unique addressing.
- High-Performance Embedded CPU: Intel 80188 processor operating at 40 MHz ensures fast command processing and stable communication.
- Multiple Communication Ports:
- 4 × RS232 ports
- 1 × RS232/RS485 configurable port
- Supports both 3-wire and 5-wire RS232 configurations.
- Memory Architecture:
- 256 KB SRAM
- 512 KB Flash ROM
- 2 KB EEPROM for configuration storage
- Embedded Flash card (512 KB) for firmware and data storage.
- Embedded Operating System: ROM-DOS (Datalight) provides a stable, DOS-compatible environment for embedded applications.
- Built-in Watchdog Timer: Ensures system reliability by automatically recovering from software or communication faults.
- 7-Segment LED Display: Provides real-time status indication, baud rate codes, and diagnostic feedback.
- Wide Operating Temperature Range: -25°C to +75°C for industrial environments.
- Power Flexibility: Operates on unregulated 10–30 VDC input, suitable for field and control cabinet installations.
- Fanless Design: Passive cooling for maintenance-free operation.
- Real-Time Clock (RTC) Support: Maintains accurate timekeeping for data logging and scheduling.
- Program Download Capability: Firmware and configuration updates via RS232 port using Xmodem protocol.
- Addressable Command Set: Supports a comprehensive ASCII-based command protocol for configuration, control, and data exchange.
- Fault-Tolerant Communication: Watchdog and checksum mechanisms ensure data integrity and system recovery.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| CPU | Intel 80188, 40 MHz |
| SRAM | 256 KB |
| Flash ROM | 512 KB |
| EEPROM | 2 KB |
| Embedded OS | ROM-DOS (Datalight) |
| Display | 7-segment LED |
| Communication Ports | 4 × RS232, 1 × RS232/RS485 |
| Communication Speed | Up to 115.2 Kbps |
| Operating Temperature | -25°C to +75°C |
| Storage Temperature | -40°C to +80°C |
| Power Supply | Unregulated 10–30 VDC |
| Cooling | Fanless |
| Watchdog Timer | Hardware-based, automatic reset |
| RTC Support | Yes |
| Program Download Interface | RS232 (COM1 or COM4 depending on model) |
| Protocol Support | ASCII command set, Xmodem for firmware transfer |
| Baud Rate Options | 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps |
| Data Bits | 7 or 8 |
| Parity | None, Even, Odd |
| Stop Bits | 1 or 2 |
| Checksum | Optional (enable/disable via command) |
| Enclosure | Industrial-grade metal housing |
| Mounting | DIN-rail or panel mount (depending on configuration) |

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### 4. Functionality

The EX9524D functions as an intelligent, addressable converter that allows RS232 devices to communicate over an RS422/RS485 network. Each module can be assigned a unique address, enabling multiple converters to coexist on the same bus. The device translates RS232 signals into RS485 differential signals and vice versa, maintaining data integrity and synchronization.

Typical Use Cases:
- Connecting legacy RS232 instruments to modern RS485-based control systems.
- Integrating PLCs, sensors, and measurement devices into distributed control networks.
- Industrial automation systems requiring multi-drop serial communication.
- Remote data acquisition and monitoring over long distances.

Compatibility:
- Compatible with standard RS232 and RS485 devices.
- Works with PCs, PLCs, HMIs, and industrial controllers.
- Supports standard serial communication parameters and protocols.

Operation:
- Commands are sent via RS485 (COM2) to configure or control RS232 ports (COM1–COM5).
- Data received from RS232 devices is echoed back to the RS485 master.
- Supports both direct data bypass and buffered communication modes.
- Configuration parameters (baud rate, parity, stop bits, etc.) are stored in EEPROM.

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### 5. Components & Accessories

Included Components:
- EX9524D main module
- Integrated 7-segment LED display
- Built-in EEPROM and Flash memory
- RS232/RS485 communication ports
- Power input terminals (10–30 VDC)

Optional Accessories:
- DIN-rail mounting kit
- RS232/RS485 communication cables
- External Flash memory card (for firmware updates)
- PC software utilities for configuration and firmware download

Connectors:
- COM1 (DB-9 Male): RS232 (5-wire) – DCD, RXD, TXD, DTR, GND, DSR, RTS, CTS, RI
- COM2: RS485 (2-wire differential)
- COM3–COM5: RS232 (3-wire)
- Power Connector: Screw terminal for 10–30 VDC input

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### 6. Installation & Setup

Requirements:
- DC power supply (10–30 VDC)
- RS232/RS485 communication cables
- PC with serial port or USB-to-RS232 adapter for configuration

Mounting Options:
- DIN-rail or panel mounting (depending on enclosure type)
- Ensure adequate ventilation for passive cooling

Configuration Procedure:
1. Power-On Initialization: Connect power while grounding the INIT* pin to enter initialization mode.
2. Program Download:
- Connect COM1 (or COM4) to PC serial port.
- Use HyperTerminal or equivalent software.
- Set communication parameters: 57600 bps, 8 data bits, no parity, 1 stop bit, no flow control.
- Transfer firmware using Xmodem protocol.
3. Address Configuration:
- Use command `$AAA(addr)` to assign module address (00–FF).
- Store configuration in EEPROM.
4. Communication Setup:
- Configure baud rate, data bits, parity, and stop bits using `$AABN`, `$AADN`, `$AAPN`, `$AAON` commands.
- Verify settings via LED display or command response.
5. Operational Mode:
- Disconnect INIT* from ground after configuration.
- Begin normal operation with RS485 master communication.

Safety Note:
Ensure INIT* pin is disconnected before firmware update completion to prevent system hang.

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### 7. Performance & Capabilities

- Communication Speed: Up to 115.2 Kbps for both RS232 and RS485 channels.
- Addressable Operation: Each module can be uniquely addressed (00–FF), supporting multi-node networks.
- Data Buffering: Internal buffer stores incoming data from active RS232 devices.
- Checksum and Error Detection: Optional checksum verification for RS485 communication.
- Command Response Time: Optimized for low-latency industrial communication.
- Reliability: Hardware watchdog ensures automatic recovery from communication or software faults.
- LED Indicators: Display baud rate codes, communication status, and error diagnostics.
- Limitations:
- RS232 cable length limited to standard 15 meters.
- RS485 network limited by topology and termination (typically up to 1200 meters).
- Configuration changes require temporary communication interruption.

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### 8. Standards & Compliance

- Electrical Standards:
- RS232 (EIA/TIA-232)
- RS485 (EIA/TIA-485)
- Environmental Compliance:
- Operating temperature: -25°C to +75°C
- Storage temperature: -40°C to +80°C
- Safety & EMC:
- Designed for industrial environments with noise immunity and surge protection.
- Firmware & Protocol Standards:
- ASCII-based command protocol for interoperability.
- Xmodem standard for firmware transfer.
- Industry Applications:
- Industrial automation, SCADA, process control, and instrumentation networks.

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### 9. Additional Information

Warranty:
Standard manufacturer warranty (typically 1–2 years) covering defects in materials and workmanship.

Technical Support:
- Firmware updates and configuration tools available from Topsccc.
- Documentation includes quick start guide, command reference, and wiring diagrams.

Maintenance:
- Fanless design minimizes maintenance.
- Periodic inspection of connectors and power supply recommended.
- Firmware can be updated via RS232 interface without hardware replacement.

Firmware Updates:
- Performed via RS232 using Xmodem protocol.
- Ensure stable power and communication during update.

Serviceability:
- Field-upgradable firmware.
- EEPROM retains configuration during power loss.
- Watchdog ensures automatic recovery from system faults.

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### Summary

The EX9524D is a robust, addressable RS422/485-to-RS232 converter designed for industrial communication networks requiring reliable, multi-port serial connectivity. With its Intel 80188 CPU, embedded ROM-DOS OS, and comprehensive command set, it provides flexible configuration, high-speed data transfer, and fault-tolerant operation. Its wide temperature range, unregulated power input, and fanless design make it ideal for harsh industrial environments. The EX9524D supports multiple RS232 ports, addressable communication, and real-time monitoring, making it a versatile solution for integrating legacy serial devices into modern distributed control systems.