Comprehensive Product Summary – EX9522D Addressable RS422/485 to RS232 Converter

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### 1. Product Overview

Product Name: EX9522D
Model Number: EX9522D
Series: EX952N Series – Addressable RS422/485 to RS232 Converter
Article Number: EX9522D
Manufacturer: Topsccc

The EX9522D is a member of the EX952N series of industrial communication converters designed to bridge RS422/485 networks with RS232 interfaces. It integrates a high-performance Intel 80188 CPU running at 40 MHz, embedded ROM-DOS operating system, and multiple serial communication ports. The device is engineered for industrial automation, data acquisition, and control systems requiring reliable, addressable serial communication across long distances and harsh environments.

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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 module addresses.
- High-Performance Embedded CPU: Intel 80188 processor operating at 40 MHz ensures fast and stable data processing.
- Multiple Communication Ports:
- COM1: RS232 (5-wire)
- COM2: RS485
- COM3: RS232 (3-wire)
- Built-in Firmware: Integrated “Addressable RS485 to RS232 Converter” firmware supports command-based configuration and data routing.
- Embedded Operating System: ROM-DOS (Datalight) provides a stable, embedded runtime environment.
- Memory Resources:
- SRAM: 256 KB
- Flash ROM: 512 KB
- EEPROM: 2 KB
- Watchdog Timer: Ensures system reliability by automatically recovering from software or communication faults.
- 7-Segment LED Display: Displays operational status, baud rate codes, and diagnostic information.
- Wide Operating Temperature Range: -25°C to +75°C for industrial environments.
- Fanless Design: Passive cooling for silent, maintenance-free operation.
- Flexible Power Input: Accepts unregulated 10–30 VDC power supply.
- Program Download Capability: Supports firmware and configuration updates via RS232 port using Xmodem protocol.
- Real-Time Clock (RTC) Support: Maintains accurate timekeeping for time-stamped data operations.
- High Communication Speed: Supports up to 115.2 Kbps data rate.
- Industrial-Grade Reliability: Designed for continuous operation in automation and control systems.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| CPU | Intel 80188, 40 MHz |
| Memory | SRAM: 256 KB; Flash ROM: 512 KB; EEPROM: 2 KB |
| Operating System | Embedded ROM-DOS (Datalight) |
| Communication Ports | COM1: RS232 (5-wire); COM2: RS485; COM3: RS232 (3-wire) |
| Communication Speed | Up to 115.2 Kbps |
| Power Supply | Unregulated 10–30 VDC |
| Operating Temperature | -25°C to +75°C |
| Storage Temperature | -40°C to +80°C |
| Display | 7-segment LED indicator |
| Watchdog Timer | Built-in hardware watchdog |
| Cooling | Fanless, passive cooling |
| Program Download Interface | RS232 (COM4 for EX9521/22/23 models) |
| 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 (depending on port) |
| Checksum | Optional, configurable for RS485 |
| End Character Modes | Configurable CR/LF modes (0x0D, 0x0A, combinations, or none) |
| RTC Support | Yes |
| Firmware Update Protocol | Xmodem via HyperTerminal |
| Compliance | Industrial-grade design, compliant with RS232 and RS485 standards |

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### 4. Functionality

The EX9522D functions as an intelligent, addressable converter that allows RS232 devices to communicate over an RS485 network. Each module is assigned a unique address, enabling multiple converters to coexist on the same RS485 bus. The device translates data between RS232 and RS485 protocols, ensuring compatibility between legacy serial equipment and modern networked systems.

Typical Use Cases:
- Industrial automation and control systems
- PLC and SCADA communication networks
- Data acquisition and monitoring systems
- Remote sensor and instrumentation networks
- Serial device networking and expansion

Operation Principle:
- Commands are sent via RS485 (COM2) to configure or control RS232 ports (COM1 and COM3).
- Data received from RS232 devices is echoed back to the RS485 network.
- The converter supports both command-based configuration and transparent data bypass modes.
- Built-in EEPROM stores configuration parameters such as address, baud rate, parity, and stop bits.

Compatibility:
- Compatible with standard RS232 and RS485 devices.
- Supports communication with PCs, PLCs, sensors, and measurement instruments.
- Works with standard terminal software (e.g., HyperTerminal) for configuration and firmware updates.

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### 5. Components & Accessories

Included Components:
- EX9522D converter module
- Integrated 7-segment LED display
- Built-in watchdog timer and EEPROM
- RS232 and RS485 communication ports
- Power input terminals (10–30 VDC)

Optional Accessories:
- RS232/RS485 communication cables
- DIN-rail mounting kit
- External power supply (if required)
- Configuration software or terminal emulator

Connectors:
- COM1: DB-9 Male (RS232, 5-wire)
- Pin 1: DCD
- Pin 2: RXD
- Pin 3: TXD
- Pin 4: DTR
- Pin 5: GND
- Pin 6: DSR
- Pin 7: RTS
- Pin 8: CTS
- Pin 9: RI
- COM2: RS485 terminal block (2-wire differential)
- COM3: RS232 (3-wire) for additional device connection or program download

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### 6. Installation & Setup

Requirements:
- Power supply: 10–30 VDC unregulated
- RS232/RS485 communication cables
- PC or host controller for configuration

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

Configuration Procedure:
1. Power On: Connect power supply and communication cables.
2. INIT Mode: To reset configuration, connect INIT* pin to GND during power-up.
- Default settings: Address = 00, Baud rate = 9600 bps, Data bits = 8, Parity = None, Stop bits = 1.
3. Program Download:
- Connect COM4 (for EX9521/22/23) or COM1 (for EX9527) to PC.
- Use HyperTerminal with settings: 57600 bps, 8N1, no flow control.
- Transfer firmware using Xmodem protocol.
4. Address and Communication Setup:
- Use command `$AAA(addr)` to set module address.
- Configure baud rate, data bits, parity, and stop bits using `$AABN`, `$AADN`, `$AAPN`, `$AAON` commands.
5. Verification:
- Use `$AAF` to read firmware version.
- Use `$AAM` to read module name.
- Use `$AA2` to verify RS485 configuration.

Safety Note:
Disconnect INIT* from ground immediately after firmware update completes to prevent system hang.

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### 7. Performance & Capabilities

- Data Throughput: Up to 115.2 Kbps on all serial channels.
- Addressable Communication: Each module can be assigned a unique address (00–FF), allowing up to 256 modules on a single RS485 network.
- Buffer Management: Built-in buffer for asynchronous data reception from active RS232 devices.
- Checksum and Error Detection: Optional checksum verification for RS485 communication.
- Command Set: Comprehensive ASCII-based command set for configuration, data transfer, and diagnostics.
- LED Indicators: 7-segment LED displays baud rate codes and operational status.
- Watchdog Recovery: Automatic reset and recovery in case of communication or software failure.
- Environmental Resilience: Operates reliably in industrial temperature ranges and electrically noisy environments.

Limitations:
- Limited to RS232 and RS485 communication standards (no USB or Ethernet).
- Configuration requires serial terminal or command interface.
- No built-in isolation (external isolation recommended for high-noise environments).

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### 8. Standards & Compliance

- Communication Standards:
- RS232 (EIA/TIA-232)
- RS485 (EIA/TIA-485)
- Electrical Compliance: Designed for unregulated 10–30 VDC industrial power systems.
- Environmental Compliance:
- Operating temperature: -25°C to +75°C
- Storage temperature: -40°C to +80°C
- Firmware Protocols: Xmodem for firmware updates, ASCII command protocol for configuration.
- Industry Standards: Suitable for industrial automation, instrumentation, and control systems requiring serial communication interoperability.

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### 9. Additional Information

Warranty:
Standard manufacturer warranty (typically 1 year, depending on distributor policy) covering defects in materials and workmanship.

Technical Support:
- Firmware updates and documentation available from Topsccc.
- Support for configuration, troubleshooting, and integration with industrial systems.

Maintenance:
- Fanless design minimizes maintenance requirements.
- Periodic verification of communication parameters recommended.
- Firmware updates can be performed via RS232 interface.

Firmware & Updates:
- Firmware stored in Flash ROM (512 KB).
- Updates performed using Xmodem protocol through HyperTerminal.
- EEPROM retains configuration settings after power loss.

Reliability Features:
- Hardware watchdog timer ensures continuous operation.
- EEPROM-based configuration storage prevents data loss.
- ROM-DOS embedded OS provides stable runtime environment.

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### Summary

The EX9522D is a robust, addressable RS422/485 to RS232 converter designed for industrial communication networks. With its Intel 80188 CPU, embedded ROM-DOS OS, and multiple serial ports, it provides a reliable bridge between RS232 devices and RS485 networks. Its wide operating temperature range, watchdog timer, and fanless design make it ideal for demanding industrial environments. The EX9522D supports flexible configuration through an extensive command set, enabling precise control over communication parameters, addressing, and data routing. It is a versatile solution for system integrators and engineers seeking dependable serial communication in automation, control, and data acquisition applications.