Comprehensive Product Summary – EX9133C‑RS485 Ethernet to RS‑485/422 Converter

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### 1. Product Overview

Product Name: EX9133C‑RS485
Model: EX9133C‑RS485 / EX9133C‑RS485‑PoE (optional Power over Ethernet version)
Series: ARM Cortex‑M4 Serial‑to‑Ethernet Converter Series
Article Number: EX9133C‑RS485
Manufacturer: TOPSCCC (www.topsccc.com)

The EX9133C‑RS485 is an industrial‑grade Ethernet‑to‑serial converter designed to connect RS‑422 or RS‑485 devices to modern TCP/IP networks. It enables legacy serial equipment—such as PLCs, sensors, meters, and controllers—to communicate over Ethernet LANs or WANs using standard network protocols. The device is powered by a high‑performance ARM Cortex‑M4 32‑bit processor and supports both standard DC power input and optional Power over Ethernet (PoE) operation.

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### 2. Key Features

- High‑Performance ARM Cortex‑M4 CPU:
32‑bit processor running at 120 MHz, optimized for real‑time data conversion between serial and Ethernet interfaces.

- Memory Architecture:
128 KB SRAM and 512 KB Flash ROM ensure stable operation and firmware upgradability.

- Dual Serial Interface:
One auto‑detecting RS‑422/RS‑485 port supporting full‑duplex (RS‑422) and half‑duplex (RS‑485) communication.

- Ethernet Connectivity:
10/100 Mbps auto‑detecting RJ‑45 port with built‑in 1.5 kV magnetic isolation for electrical protection.

- PoE Support (Optional):
Integrated PoE splitter provides approximately 12 V DC output from a Cat.5 Ethernet cable, eliminating the need for a separate power supply.

- Flexible Network Modes:
Supports TCP Server, TCP Client, UDP Client, Virtual COM, and Pairing modes for versatile integration.

- Web‑Based Configuration:
Full configuration via standard web browsers (HTTP interface). No proprietary software required.

- Dynamic IP Management:
DHCP client support for automatic IP assignment.

- Security Control:
Password‑protected login to prevent unauthorized access.

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

- Digital I/O (Optional):
Eight TTL‑level digital I/O pins for remote monitoring and control of sensors or actuators.

- Industrial Reliability:
Surge and over‑current protection on all serial lines, 15 kV ESD protection, and watchdog functionality for system stability.

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

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### 3. Technical Specifications

Processor & 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: ARP, IP, ICMP, UDP, TCP, HTTP, DHCP
- Modes: TCP Server, TCP Client, UDP Client, Virtual COM, Pairing
- Configuration: HTTP browser setup (IE, Netscape)
- Security: Password login
- Protection: 1.5 kV magnetic isolation
- PoE (optional): 12 V DC output after PoE splitter

Serial Interface
- Port: 1 × RS‑422/RS‑485 (auto‑detect)
- Connector: Terminal block
- Baud Rate: 300 bps to 115.2 kbps
- Parity: None, Odd, Even, Mark, Space
- Data Bits: 5, 6, 7, 8
- Stop Bits: 1 or 2
- RS‑422 Signals: Rx+, Rx−, Tx+, Tx− (surge & over‑current protection)
- RS‑485 Signals: Data+, Data− (surge & over‑current protection)
- Built‑in pull high/low resistors

Digital I/O (Optional)
- 8 × TTL digital I/O pins

Power Requirements
- Input Voltage: 9–24 V DC
- Current: 500 mA
- Connector: DC jack (default) or terminal block (optional)
- PoE Splitter Output: Approx. 12 V DC

Indicators (LEDs)
- PORT‑1 (Red): Data transmit indicator
- PORT‑2 (Green): Data receive indicator
- DI/DO (Red): Digital I/O activity
- SYS (Green): System status (blinks once per second in normal operation)

Environmental Conditions
- Operating Temperature: 0 °C to 70 °C
- Storage Temperature: −10 °C to 80 °C
- Humidity: Standard industrial tolerance

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

Compliance & Safety
- RoHS compliant
- FCC and CE certified

Warranty: 1 year

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### 4. Functionality

The EX9133C‑RS485 functions as a serial‑to‑Ethernet converter, bridging traditional serial communication devices with IP‑based networks. It encapsulates serial data into TCP/IP packets for transmission over Ethernet and decapsulates incoming network data back into serial form.

Operating Modes:
- TCP Server Mode: Listens for incoming connections from remote clients.
- TCP Client Mode: Initiates connections to a designated server.
- UDP Mode: Enables connectionless data transmission for low‑latency applications.
- Virtual COM Mode: Emulates a standard COM port on Windows systems, allowing legacy software to communicate over Ethernet transparently.
- Pairing Mode: Two converters can be paired to create a transparent serial bridge over Ethernet.

Use Cases:
- Industrial automation (PLC networking, SCADA systems)
- Remote monitoring of sensors and meters
- Building management and environmental control systems
- Serial device networking in laboratories or production lines
- Integration of legacy RS‑485/422 devices into modern IP infrastructures

Compatibility:
Compatible with Windows 2000, 2003, XP, Vista, and Windows 7 via the included Virtual COM software. Works with any network software using standard Winsock or BSD socket APIs.

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### 5. Components & Accessories

Standard Package Contents:
- 1 × EX9133C‑RS485 or EX9133C‑RS485‑PoE converter
- 1 × Power adapter (9/12/24 V DC, 500 mA) – optional
- 1 × DIN‑rail mounting kit – optional
- 1 × Quick Installation Guide and CD with documentation and software

Optional Accessories:
- PoE splitter (for PoE version)
- Terminal block connectors
- DIN‑rail mounting bracket
- Virtual COM driver software (downloadable)

Connectors:
- RJ‑45 Ethernet port
- RS‑422/RS‑485 terminal block
- DC‑in power jack
- Reset button

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### 6. Installation & Setup

Power Connection:
Connect a 9–24 V DC power supply (inner positive, outer negative) to the DC‑in jack. For PoE models, power is supplied through the Ethernet cable via a PoE‑enabled switch or injector.

Network Connection:
Attach the RJ‑45 port to a network switch or hub. The LAN LED will illuminate upon connection, and data LEDs will blink during transmission.

Reset Function:
Press and hold the reset button for approximately 3 seconds to restore factory defaults. Holding for more than 5 seconds enters firmware update mode.

LED Indicators:
- PORT‑1/PORT‑2: Indicate serial data transmission and reception.
- DI/DO: Shows digital I/O activity.
- SYS: Blinks once per second when operating normally.

Configuration Tools:
1. EXBrowser Utility (Windows):
- Detects converters on the LAN using UDP broadcast.
- Allows modification of IP and MAC addresses.
- Displays device status (IP, subnet, MAC, device ID).
- Operates within the same LAN segment (broadcast packets do not cross routers).

2. Web Browser Interface:
- Access via device IP address.
- Configure network parameters (IP, subnet, gateway, DHCP).
- Set serial communication parameters (baud rate, parity, data bits, stop bits).
- Define socket type (TCP/UDP), local/remote ports, and remote IP.
- Manage login password and auto‑reset timers.
- Save and apply settings via the “Update” function.

Factory Default Reset:
Power on the device, press and hold the reset button for 5 seconds to restore default settings (password cleared).

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### 7. Performance & Capabilities

- Data Rate: 300 bps to 115.2 kbps on serial interface.
- Network Throughput: 10/100 Mbps Ethernet auto‑negotiation.
- Latency: Minimal, optimized by ARM Cortex‑M4 architecture and packet collection timing (0–999 ms configurable).
- Socket Connections: One concurrent socket connection supported.
- Reliability: Watchdog timer ensures automatic recovery from communication faults.
- Auto‑Reset Function: Automatically reboots after a configurable idle period (1–255 minutes).
- Firmware Update: Performed online via Ethernet, ensuring long‑term maintainability.
- Protection: 15 kV ESD protection on all signal lines; surge and over‑current protection on RS‑422/485 ports.
- Limitations: Single serial port; one socket connection at a time; configuration limited to one device per EXBrowser session.

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### 8. Standards & Compliance

- Electrical & Safety:
- 1.5 kV magnetic isolation on Ethernet port
- Surge and over‑current protection on serial lines
- 15 kV ESD protection

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

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

- Network Protocols Supported:
ARP, IP, ICMP, UDP, TCP, HTTP, DHCP

- Industry Standards:
Compatible with IEEE 802.3 (Ethernet) and RS‑422/RS‑485 serial communication standards.

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### 9. Additional Information

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

Technical Support:
Documentation, firmware updates, and Virtual COM software are available from the manufacturer’s website. Technical assistance is provided via authorized distributors or directly through TOPSCCC support channels.

Maintenance:
- Keep ventilation openings clear to prevent overheating.
- Use only specified power supplies.
- Periodically check firmware updates for performance improvements and security patches.
- Reset to factory defaults if configuration errors occur.

Software Updates:
Firmware can be updated remotely through the Ethernet interface using the web configuration tool. Updates ensure compatibility with new network protocols and security enhancements.

Troubleshooting (FAQ Highlights):
- If EXBrowser cannot detect the converter, verify power and network cable connections.
- If the web interface is inaccessible, ensure the PC and converter are on the same subnet.
- Reset the device if login credentials are lost.

Pin Assignments:
- RS‑422:
- Pin 1: R−
- Pin 2: R+
- Pin 3: T−
- Pin 4: T+
- RS‑485:
- D+ ↔ D+
- D− ↔ D−
- RJ‑45: Standard Ethernet pinout per IEEE 802.3.
- DC‑In Jack: Center positive, outer negative.

Physical Mounting:
DIN‑rail kit available for industrial cabinet installation. Compact 115 × 90 × 27 mm form factor allows easy integration into control panels or enclosures.

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### Summary

The EX9133C‑RS485 is a robust, cost‑effective serial‑to‑Ethernet converter engineered for industrial and automation environments. Its ARM Cortex‑M4 processor delivers high‑speed, reliable data conversion between RS‑422/RS‑485 serial interfaces and Ethernet networks. With flexible configuration options, PoE capability, and comprehensive protocol support, it provides a seamless bridge between legacy serial devices and modern IP infrastructures.

Designed for durability, ease of setup, and long‑term reliability, the EX9133C‑RS485 is ideal for system integrators, automation engineers, and network administrators seeking to modernize serial communication systems without replacing existing equipment.