Comprehensive Product Summary – EX9527 Addressable RS422/485 to RS232 Converter

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### 1. Product Overview

Product Name: EX9527
Model Number: EX9527D
Series: EX952N Series – Addressable RS422/485 to RS232 Converter
Article Number: EX9527
Manufacturer: TOPSCCC (TopSCCC Industrial Automation)

The EX9527 is a high-performance, addressable RS422/485 to RS232 converter designed for industrial communication networks. It enables seamless integration between RS232-based devices and RS422/485 networks, providing robust, multi-port serial communication capabilities. The EX9527 belongs to the EX952N series, which includes models EX9521D, EX9522D, EX9523D, and EX9527D, each offering different port configurations. The EX9527D is the most advanced model in the series, featuring eight RS232 ports and one RS232/RS485 port, making it ideal for complex multi-device communication environments.

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### 2. Key Features

- Addressable RS422/485 to RS232 Conversion:
Allows multiple RS232 devices to communicate over a single RS485 network using addressable firmware.

- High-Performance Embedded CPU:
Equipped with an Intel 80188 CPU running at 40 MHz for reliable and fast data processing.

- Comprehensive Serial Port Configuration:
- COM1: RS232 (5-wire, used for program download)
- COM2: RS485 (2-wire, supports addressable communication)
- COM3–COM8: RS232 (3-wire)

- Embedded Operating System:
Runs ROM-DOS (Datalight) for stable embedded operation and file management.

- Memory Resources:
- SRAM: 256 KB
- Flash ROM: 512 KB
- EEPROM: 2 KB
- Additional Flash Card: 512 KB

- Wide Operating Temperature Range:
Designed for industrial environments with an operating range of –25°C to +75°C and storage range of –40°C to +80°C.

- Power Flexibility:
Operates on an unregulated 10–30 VDC power supply, suitable for field and automation systems.

- Watchdog Timer:
Built-in hardware watchdog ensures system reliability and automatic recovery from faults.

- Fanless Design:
Passive cooling for silent, maintenance-free operation.

- High-Speed Communication:
Supports baud rates up to 115.2 Kbps.

- Programmable Configuration:
Fully configurable via RS485 commands for baud rate, parity, stop bits, data bits, and addressing.

- Built-in Real-Time Clock (RTC):
Supports time-based operations and logging.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| CPU | Intel 80188, 40 MHz |
| SRAM | 256 KB |
| Flash ROM | 512 KB |
| EEPROM | 2 KB |
| Flash Card | 512 KB |
| Embedded OS | ROM-DOS (Datalight) |
| 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 |
| Watchdog Timer | Hardware watchdog for fault recovery |
| Ports | 8 × RS232, 1 × RS232/RS485 |
| COM1 | RS232 (5-wire, program download) |
| COM2 | RS485 (2-wire) |
| COM3–COM8 | RS232 (3-wire) |
| 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) |
| Construction | Industrial-grade, fanless, ruggedized |
| Compliance | RS232, RS422, RS485 standards |
| Manufacturer | TOPSCCC |

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### 4. Functionality

The EX9527 serves as a bridge between RS232 and RS485 communication systems. It allows multiple RS232 devices to be connected to a single RS485 bus, each identified by a unique address. The converter translates and routes data between the two communication standards, enabling centralized control and monitoring.

Operation Principle:
- Commands are sent via the RS485 (COM2) interface.
- The EX9527 interprets these commands and forwards data to the appropriate RS232 port (COM1–COM8).
- Responses from RS232 devices are automatically echoed back to the RS485 master.

Use Cases:
- Industrial automation and control systems
- PLC and SCADA integration
- Measurement and instrumentation networks
- Data acquisition systems
- Serial device networking in manufacturing environments

Compatibility:
- Compatible with standard RS232 and RS485 devices.
- Supports PC-based configuration via HyperTerminal or similar serial communication software.
- Works with various industrial controllers, sensors, and data loggers.

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### 5. Components & Accessories

Included Components:
- EX9527 converter module
- Built-in EEPROM for configuration storage
- Embedded ROM-DOS operating system
- Watchdog timer circuit
- RS232 and RS485 communication ports

Optional Accessories:
- RS485 network cables
- RS232 serial cables (DB9)
- Power supply (10–30 VDC)
- Mounting brackets or DIN-rail adapters
- Firmware update cable (for program download via COM1)

Connectors:
- COM1: DB9 Male (RS232, 5-wire)
- COM2: Terminal block (RS485)
- COM3–COM8: DB9 connectors (RS232, 3-wire)

Pin Assignment (COM1 – DB9 Male):
1. DCD – Data Carrier Detect
2. RXD – Receive Data
3. TXD – Transmit Data
4. DTR – Data Terminal Ready
5. GND – Signal Ground
6. DSR – Data Set Ready
7. RTS – Request to Send
8. CTS – Clear to Send
9. RI – Ring Indicator

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### 6. Installation & Setup

Requirements:
- Power supply: 10–30 VDC (unregulated)
- RS485 network connection
- RS232 devices with DB9 connectors

Mounting Options:
- DIN-rail or panel mounting (depending on enclosure)
- Fanless design allows flexible orientation

Configuration Procedure:
1. Program Download Mode:
- Connect COM1 (RS232, 5-wire) to PC.
- Ground the INIT* pin during power-on.
- Use HyperTerminal with settings:
- Baud rate: 57600
- Data bits: 8
- Parity: None
- Stop bits: 1
- Flow control: None
- Transfer firmware using XMODEM protocol.

2. Normal Operation Mode:
- Ensure INIT* pin is floating (not grounded).
- Power on the device to start normal communication.

3. INIT Mode (Factory Reset):
- Power on the module.
- Momentarily connect INIT* to GND, then release.
- Device resets to default configuration:
- Address = 00
- Baud rate = 9600 bps
- Data bits = 8
- Parity = None
- Stop bits = 1

4. Address and Communication Settings:
- Use RS485 commands to set address, baud rate, parity, and stop bits.
- Configuration is stored in EEPROM.

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### 7. Performance & Capabilities

- Communication Speed: Up to 115.2 Kbps
- Addressable Communication: Supports up to 256 module addresses (00–FF).
- Multi-Port Operation:
- COM1–COM8 operate independently.
- COM2 (RS485) serves as the master communication channel.
- Buffer Management:
- Internal buffer stores incoming data from active RS232 devices.
- Buffer automatically re-enables after inactivity.
- Checksum and Error Handling:
- Optional checksum verification for RS485 communication.
- Watchdog timer resets the system in case of communication failure.
- Command Set:
- Supports over 19 command types for configuration and data handling.
- Commands include address setting, baud rate, parity, stop bits, ID assignment, delimiter configuration, and firmware version retrieval.
- Data Integrity:
- Configurable end-character (CR/LF) modes ensure compatibility with various devices.
- Supports 0x0D, 0x0A, or combined CR/LF sequences.
- Limitations:
- COM1 fixed to 1 stop bit and no parity.
- COM2 checksum applies only to RS485 communication.
- Buffer data may be lost if CrLf mode is changed during operation.

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### 8. Standards & Compliance

- Communication Standards:
- RS232 (EIA/TIA-232)
- RS422/RS485 (EIA/TIA-485)

- Electrical Compliance:
- Operates on unregulated 10–30 VDC input
- Industrial-grade noise immunity

- Environmental Compliance:
- Operating temperature: –25°C to +75°C
- Storage temperature: –40°C to +80°C
- Fanless, dust-resistant design

- Firmware & Protocol Compliance:
- ROM-DOS (Datalight) embedded OS
- XMODEM protocol for firmware updates
- ASCII-based command structure for configuration

- Safety & Reliability:
- Hardware watchdog timer for fault recovery
- EEPROM-based configuration retention

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### 9. Additional Information

Warranty:
Typically covered under manufacturer’s standard industrial warranty (details vary by distributor).

Support & Maintenance:
- Firmware updates available via RS232 (COM1) using XMODEM protocol.
- Configuration stored in non-volatile EEPROM.
- Technical support provided by TOPSCCC or authorized distributors.

Maintenance Recommendations:
- Periodically verify communication parameters.
- Ensure proper grounding and shielding for RS485 networks.
- Avoid changing CrLf mode during active data transmission to prevent buffer corruption.

Firmware & Updates:
- Firmware version can be read using command `$AAF`.
- Module name and version are retrievable via `$AAM` and `$AAF` commands.
- Supports remote configuration via RS485 network.

Reliability Features:
- Watchdog timer ensures automatic recovery from system hangs.
- EEPROM retains configuration after power loss.
- Fanless design minimizes mechanical failure points.

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### Summary

The EX9527D is a robust, industrial-grade, addressable RS422/485 to RS232 converter designed for complex serial communication networks. With its 40 MHz 80188 CPU, multiple RS232 ports, and embedded ROM-DOS operating system, it provides a flexible and reliable platform for integrating legacy serial devices into modern RS485 networks. Its wide operating temperature range, unregulated power input, and watchdog timer make it suitable for demanding industrial environments. The EX9527D’s comprehensive command set, addressable architecture, and multi-port configuration capabilities make it an ideal solution for automation, data acquisition, and control applications requiring high reliability and configurability.