Comprehensive Product Summary – EX9133C‑RS232 Ethernet to Serial Converter

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### 1. Product Overview

Product Name: EX9133C‑RS232
Model: EX9133C‑RS232
Series: ARM Cortex‑M4 Serial‑to‑Ethernet Converter Series
Article Number: EX9133C‑RS232
Manufacturer: TOPSCCC / EXSYS Industrial Networking Solutions

The EX9133C‑RS232 is a compact, high‑performance Ethernet‑to‑Serial converter designed to integrate legacy RS‑232 serial devices into modern TCP/IP‑based LAN or WAN environments. Built around a 32‑bit ARM Cortex‑M4 processor running at 120 MHz, the converter provides reliable, low‑latency communication between serial equipment and Ethernet networks. It is part of the EX9133C family, which includes RS‑232, RS‑422, and RS‑485 variants, all sharing a common hardware and firmware platform optimized for industrial automation, remote monitoring, and embedded control applications.

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### 2. Key Features

- High‑Performance ARM Cortex‑M4 CPU:
32‑bit processor operating at 120 MHz with 128 KB SRAM and 512 KB Flash ROM ensures fast data handling and efficient protocol conversion.

- Ethernet to RS‑232 Serial Conversion:
Converts serial data streams (RS‑232 via DB9 connector) into TCP/IP packets for transmission over Ethernet networks, and vice versa.

- Auto‑Detection and Flexible Serial Configuration:
Supports automatic detection of serial parameters and manual configuration of baud rate, parity, data bits, and stop bits.

- Web‑Based Configuration Interface:
Integrated HTTP server allows configuration through any standard web browser (Internet Explorer, Netscape, or equivalent) without additional software.

- Virtual COM Port Support:
Includes Windows‑compatible Virtual COM software enabling legacy applications to communicate over Ethernet as if connected to a local COM port.

- Multiple Operating Modes:
Supports TCP Server, TCP Client, UDP Client, Virtual COM, and Pairing modes for flexible network integration.

- Dynamic IP Configuration:
DHCP client support simplifies network setup and IP address management.

- Built‑in Security:
Password‑protected login prevents unauthorized access to configuration settings.

- Remote Firmware Update:
Firmware can be updated directly via Ethernet to maintain compatibility with evolving network standards.

- Industrial‑Grade Design:
Plastic enclosure with 1.5 kV magnetic isolation, 15 kV ESD protection, and surge/over‑current protection on serial lines.

- Wide Operating Temperature Range:
Designed for 0 °C to 70 °C operation, suitable for industrial and field environments.

- Compact and Lightweight:
Small form factor (115 × 90 × 27 mm) and 140 g weight for easy installation in space‑constrained systems.

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### 3. Technical Specifications

Processor and Memory
- CPU: ARM Cortex‑M4 32‑bit, 120 MHz
- RAM: 128 KB SRAM
- ROM: 512 KB Flash ROM

Ethernet Interface
- Connector: RJ‑45
- Speed: 10/100 Mbps (auto‑detect)
- Protocols Supported: ARP, IP, ICMP, UDP, TCP, HTTP, DHCP
- Modes: TCP Server, TCP Client, UDP Client, Virtual COM, Pairing
- Configuration: HTTP browser setup
- Security: Password login
- Isolation: 1.5 kV magnetic isolation
- Optional PoE (Power over Ethernet): 12 V output after PoE splitter

Serial Interface (RS‑232)
- Port Type: DB9 male connector
- Communication Speed: 300 bps – 115.2 kbps
- Parity: None, Odd, Even, Mark, Space
- Data Bits: 5, 6, 7, 8
- Stop Bits: 1, 2
- Protection: Surge and over‑current protection, 15 kV ESD
- Pull‑up/Pull‑down resistors integrated

Power Requirements
- Input Voltage: 9 – 24 V DC
- Current: 500 mA typical
- Connector: DC jack (default) or terminal block (optional)
- Polarity: Inner positive, outer negative

Indicators (LEDs)
- PORT‑1 (Red): Serial data transmission indicator
- PORT‑2 (Green): Network data transmission indicator
- DI/DO (Red): Digital I/O activity (if equipped)
- SYS (Green): System status (blinks once per second during normal operation)

Environmental Conditions
- Operating Temperature: 0 °C – 70 °C
- Storage Temperature: −10 °C – 80 °C
- Humidity: 5 – 95 % RH (non‑condensing)

Physical Characteristics
- Dimensions: 115 mm (W) × 90 mm (D) × 27 mm (H)
- Weight: 140 g
- Enclosure: Industrial‑grade plastic (PVC)

Compliance and Safety
- RoHS Compliant
- FCC and CE Certified

Warranty: 1 year limited manufacturer warranty

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### 4. Functionality

The EX9133C‑RS232 functions as a transparent bridge between serial and Ethernet interfaces. It encapsulates serial data into TCP/IP packets for transmission over LAN or WAN networks and reconstructs incoming network data into serial format for connected devices. This enables remote access, monitoring, and control of serial‑based equipment through standard network infrastructure.

Typical Use Cases:
- Connecting PLCs, sensors, meters, and controllers to Ethernet networks
- Remote monitoring of industrial automation systems
- Integration of legacy RS‑232 devices into SCADA or IoT platforms
- Serial‑over‑IP communication for instrumentation and data acquisition
- Extending serial communication distance beyond cable limitations

Compatibility:
- Compatible with Windows 2000, 2003, XP, Vista, 7, and later versions via Virtual COM driver
- Works with any TCP/IP‑based software using Winsock or BSD sockets

Operating Modes:
- TCP Server: Listens for incoming connections from clients.
- TCP Client: Initiates connection to a remote server.
- UDP Client: Sends and receives datagrams without connection overhead.
- Virtual COM: Emulates a local serial port over Ethernet.
- Pairing Mode: Two converters can be paired to create a transparent serial tunnel over Ethernet.

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### 5. Components & Accessories

Included Items:
- 1 × EX9133C‑RS232 converter unit
- 1 × Power adapter (9 V/12 V/24 V DC, 500 mA) – optional
- 1 × DIN‑rail mounting kit – optional
- 1 × Quick Installation Guide and software CD (includes documentation and Virtual COM driver)

Optional Accessories:
- PoE splitter for power and data over Cat5 cable
- Terminal block power connector
- RS‑232 serial cables (DB9)
- DIN‑rail mounting bracket

Connectors:
- RJ‑45 Ethernet port
- DC power jack
- DB9 serial port (RS‑232)
- Reset button for factory defaults

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### 6. Installation & Setup

Power Connection:
Connect the supplied DC adapter (9–24 V DC, 500 mA) to the power jack. Ensure correct polarity (inner positive, outer negative). The device can also be powered via PoE when equipped with the optional splitter.

Network Connection:
Attach a standard Ethernet cable to the RJ‑45 port and connect it to a network switch or hub. The LAN LED will illuminate upon successful link detection.

Serial Connection:
Connect the RS‑232 DB9 port to the target serial device using a standard serial cable. Verify pin assignments according to the device’s communication requirements.

Reset Function:
If configuration becomes inaccessible or the password is lost, press and hold the reset button for approximately 3 seconds to restore factory defaults. Holding for more than 5 seconds enters firmware update mode.

Configuration Methods:
1. EXBrowser Utility (Windows):
- Detects converters on the local network using UDP broadcast.
- Allows modification of IP and MAC addresses.
- Provides quick access to web configuration.
2. Web Browser Interface:
- Access by entering the converter’s IP address in a browser.
- Configure network parameters (IP, subnet mask, gateway, DHCP).
- Set serial communication parameters (baud rate, parity, data bits, stop bits).
- Define socket type, local/remote ports, and connection mode.
- Save and reboot to apply settings.

Verification:
Use Windows HyperTerminal or equivalent software to test data transmission between the serial and TCP/IP interfaces. Successful bidirectional data flow confirms correct setup.

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### 7. Performance & Capabilities

- Data Rate: 300 bps – 115.2 kbps (serial)
- Network Throughput: Up to 100 Mbps (auto‑negotiated)
- Latency: Optimized for low‑delay serial‑to‑Ethernet conversion
- Socket Connections: 1 concurrent connection supported
- Auto‑Reset Function: Automatically reboots after communication timeout (1–255 minutes configurable)
- Packet Collection Time: Adjustable from 0 – 999 ms for optimized data buffering
- Watchdog Timer: Ensures continuous operation and automatic recovery from faults
- Reliability: 15 kV ESD protection on all signal lines; surge and over‑current protection on serial ports
- Limitations: Single serial port; limited to one socket connection; not designed for high‑speed bulk data transfer beyond 115.2 kbps

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### 8. Standards & Compliance

- Electrical and Safety:
- 1.5 kV magnetic isolation on Ethernet interface
- Surge and over‑current protection on serial lines
- 15 kV ESD protection on all signal pins

- Environmental:
- RoHS compliant (lead‑free manufacturing)

- Regulatory Certifications:
- FCC (Federal Communications Commission)
- CE (Conformité Européenne)

- Networking Standards Supported:
- IEEE 802.3 (Ethernet 10Base‑T/100Base‑TX)
- TCP/IP, UDP, DHCP, HTTP, ICMP, ARP protocols

- Industry Standards:
- Compatible with Modbus/TCP and other serial‑over‑IP implementations
- Supports standard Winsock/BSD socket APIs

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### 9. Additional Information

Warranty:
1‑year limited manufacturer warranty covering defects in materials and workmanship.

Technical Support:
Free downloadable Virtual COM software and documentation available from the manufacturer’s website. Technical assistance provided via email or authorized distributors.

Maintenance:
- Periodically check power and network connections.
- Keep firmware updated via the web interface to ensure compatibility with current network protocols.
- Use the reset function to restore factory defaults if configuration becomes inaccessible.

Firmware Updates:
Firmware can be updated online through the Ethernet interface using the built‑in web management console. Updates preserve configuration settings and minimize downtime.

Service Life and Reliability:
Designed for continuous 24/7 operation in industrial environments. The watchdog timer and auto‑reset functions enhance reliability by recovering from transient network or power issues.

Environmental Considerations:
PVC enclosure provides insulation and durability. The device should be installed in a dry, ventilated area within the specified temperature range.

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### Summary

The EX9133C‑RS232 Ethernet‑to‑Serial Converter is a robust, cost‑effective solution for connecting RS‑232 devices to Ethernet networks. Powered by a 120 MHz ARM Cortex‑M4 processor, it delivers reliable serial‑to‑TCP/IP communication with flexible configuration options, web‑based management, and comprehensive protocol support. Its compact design, industrial‑grade protection, and wide operating temperature range make it ideal for automation, remote monitoring, and embedded networking applications. With built‑in security, DHCP support, and firmware upgradability, the EX9133C‑RS232 ensures long‑term adaptability and seamless integration into modern IP‑based infrastructures.