Comprehensive Product Summary – EX9486C-W Serial to Wi-Fi Converter

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### 1. Product Overview

Product Name: Serial to Wi-Fi Converter
Model: EX9486C-W
Series: ARM9-based Industrial Serial Networking Devices
Article Number: EX9486C-W-old
Manufacturer: TOPSCCC (www.topsccc.com)
Version: 2.0 (Operation Manual dated April 24, 2018)

The EX9486C-W is an industrial-grade serial-to-Wi-Fi converter designed to bridge traditional serial communication interfaces (RS-232, RS-422, RS-485) with modern wireless LAN networks. Built around an ARM9 200 MHz 32-bit CPU, it provides robust, high-performance data conversion between serial and TCP/IP protocols, enabling legacy serial devices to be accessed and controlled over Ethernet, intranet, or the Internet. The device supports both wired (Ethernet) and wireless (Wi-Fi 802.11 b/g/n) connectivity, making it a versatile solution for industrial automation, remote monitoring, and IoT integration.

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### 2. Key Features

- ARM9 200 MHz 32-bit Processor: Ensures efficient data handling and low-latency communication between serial and network interfaces.
- Memory Configuration: 128 MB SDRAM and 32 MB SRAM for stable operation and buffering of serial data streams.
- Multi-Protocol Serial Support: Compatible with RS-232, RS-422, and RS-485 standards, allowing integration with a wide range of industrial devices such as PLCs, sensors, and meters.
- Wi-Fi Connectivity: Supports IEEE 802.11b/g/n standards with data rates up to 72.2 Mbps (20 MHz bandwidth). Operates in the 2.4 GHz band with DSSS and OFDM modulation.
- Ethernet Interface: 10/100 Mbps auto-detecting RJ-45 port with 1.5 kV magnetic isolation for reliable wired networking.
- Flexible Network Modes: Operates as TCP Server, TCP Client, or UDP Client, supporting both infrastructure and access point (AP) Wi-Fi modes.
- Web-Based Configuration: Intuitive HTTPS browser interface for setup and management; no proprietary software required.
- Security Features: Supports WEP (64/128-bit), WPA/WPA2 Personal, AES encryption, WPS 2.0, and WAPI. Includes setup and access passwords for device protection.
- Dynamic IP Configuration: DHCP client support for automatic IP assignment; static IP configuration also available.
- Overvoltage and ESD Protection: 15 kV ESD protection on all serial lines ensures durability in industrial environments.
- Wide Temperature Range: Operational from -20°C to +70°C, suitable for harsh industrial conditions.
- Watchdog Timer (WDT): Ensures system reliability by automatically recovering from communication errors or system hangs.
- Firmware Upgradeable: Remote firmware updates via Ethernet to maintain compatibility with evolving network standards.
- Modbus-RTU Support: Enables integration with Modbus-based automation systems.
- Optional Isolated Ethernet Port: Provides additional electrical isolation for sensitive applications.

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### 3. Technical Specifications

Processor & Memory
- CPU: ARM9, 200 MHz, 32-bit architecture
- SDRAM: 128 MB
- SRAM: 32 MB

Wireless LAN (Wi-Fi)
- Standard: IEEE 802.11b/g/n
- Frequency Band: 2.4 GHz (2.3–2.5 GHz)
- Data Rate: 11/54/72.2 Mbps @ 20 MHz bandwidth
- Modulation: DSSS, OFDM
- Transmission Power:
- 802.11b: Max. 22 dBm
- 802.11g/n: Max. 19 dBm
- Receiver Sensitivity:
- -76 dBm @ 54 Mbps
- -89.5 dBm @ 11 Mbps
- Transmission Distance: Up to 100 meters (line of sight)
- Antenna: 2 dBi dipole antenna, RP-SMA connector
- Security: WEP 64/128-bit, WPA/WPA2 Personal, AES, WPS 2.0, WAPI
- Network Modes: Infrastructure, Access Point (for setup)
- Configuration: HTTP/HTTPS browser setup (IE, Chrome, Firefox)

Ethernet Interface
- Connector: RJ-45
- Speed: 10/100 Mbps (auto-detecting)
- Protocols Supported: ARP, IP, ICMP, UDP, TCP, HTTP, DHCP, PPPoE, DDNS, NTP, FTP, Telnet
- Security: Setup password protection
- Isolation: 1.5 kV magnetic isolation

Serial Communication
- Ports:
- 1 × RS-232 (DB9 male)
- 1 × RS-422/485 (4-pin terminal block)
- RS-232 Signals: TxD, RxD, GND
- RS-422 Signals: Tx+, Tx-, Rx+, Rx-
- RS-485 Signals: Data+, Data-
- Baud Rate: 300 bps to 230.4 kbps
- Data Bits: 5, 6, 7, 8
- Stop Bits: 1, 2
- Parity: None, Even, Odd, Space, Mark
- Line Protection: 15 kV ESD

Power Requirements
- Input Voltage: 9–24 VDC
- Current Consumption: 200 mA @ 12 VDC
- Connector: Terminal block (pin assignment specified in manual)

Environmental Conditions
- Operating Temperature: -20°C to +70°C
- Storage Temperature: -25°C to +80°C
- Humidity: 10–95% RH (operating), 5–95% RH (storage)

Regulatory Compliance
- Certifications: CE, FCC, RoHS

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### 4. Functionality

The EX9486C-W functions as a transparent bridge between serial devices and IP-based networks. It converts serial data (RS-232/422/485) into TCP/IP packets for transmission over Wi-Fi or Ethernet, and vice versa. This allows legacy serial equipment to be monitored, controlled, and managed remotely through standard network protocols.

Use Cases and Applications:
- Industrial automation systems (PLCs, HMIs, SCADA)
- Remote sensor and meter data acquisition
- Building management systems (BMS)
- Energy monitoring and smart grid applications
- Machine-to-machine (M2M) communication
- IoT device integration and remote diagnostics

Compatibility:
- Compatible with Windows 2000/2003/Vista/7/8/10 via included Virtual COM software.
- Supports standard TCP/IP-based applications and Modbus-RTU protocol.

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### 5. Components & Accessories

Included Items:
- 1 × EX9486C-W Serial to Wi-Fi Converter
- 1 × 2.0 dBi dipole antenna (RP-SMA)
- 1 × CD-ROM (Operation Manual & Utility Software)

Optional Accessories:
- DIN rail mounting kit
- Power adapter (9–24 VDC)

Connectors:
- RS-232: DB9 male
- RS-422/485: 4-pin terminal block
- Ethernet: RJ-45
- Power: Terminal block input

Pin Assignments:
- RS-232: Pin 2 (RxD), Pin 3 (TxD), Pin 5 (GND)
- RS-422: Pin 1 (R-), Pin 2 (R+), Pin 3 (T-), Pin 4 (T+)
- RS-485: Pin 3 (D-), Pin 4 (D+)

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### 6. Installation & Setup

Requirements:
- PC or notebook with Ethernet or Wi-Fi adapter
- Wireless Access Point (for infrastructure mode)
- Power supply (9–24 VDC)

Mounting Options:
- Desktop placement
- DIN rail mounting (optional kit)

Initial Configuration:
1. Connect power and antenna.
2. By default, the device operates in Access Point mode with SSID format “EXiot_XX:XX:XX:XX:XX:XX” and password “12345678”.
3. Connect a PC to this SSID using Wi-Fi.
4. Access the web configuration interface via browser (default IP: 192.168.0.115).
5. Login credentials: admin / admin.
6. Configure network type (Infrastructure or Access Point), SSID, encryption, and IP settings (DHCP or Static).
7. Set serial communication parameters (baud rate, parity, data bits, stop bits).
8. Select operation mode (TCP Server, TCP Client, or UDP).
9. Save settings and reboot the device.

Reset Procedure:
If configuration becomes inaccessible, press and hold the reset button for 25 seconds while powered on to restore factory defaults (Access Point mode).

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### 7. Performance & Capabilities

- Data Throughput: Up to 54 Mbps (Wi-Fi 802.11g)
- Serial Speed: 300 bps to 230.4 kbps
- Transmission Range: Up to 100 meters (open space)
- Network Flexibility: Operates as both server and client; supports NAT traversal in client mode.
- Reliability: Watchdog Timer ensures automatic recovery from communication faults.
- Security: Multi-layer protection with encryption and password access.
- Efficiency: DHCP simplifies IP management; web-based configuration reduces setup time.
- Limitations:
- RS-232 interface limited to TxD, RxD, and GND (no hardware flow control).
- Wireless and Ethernet interfaces cannot operate in the same subnet simultaneously.

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### 8. Standards & Compliance

Networking Standards:
- IEEE 802.11b/g/n (Wi-Fi)
- IEEE 802.3 (Ethernet 10/100 Mbps)

Protocols Supported:
- ARP, IP, ICMP, UDP, TCP, HTTP, DHCP, PPPoE, DDNS, NTP, FTP, Telnet

Security Standards:
- WEP 64/128-bit, WPA/WPA2 Personal, AES, WPS 2.0, WAPI

Regulatory Compliance:
- CE (Conformité Européenne)
- FCC (Federal Communications Commission)
- RoHS (Restriction of Hazardous Substances)

These certifications ensure the EX9486C-W meets international standards for electromagnetic compatibility, safety, and environmental responsibility.

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### 9. Additional Information

Warranty & Support:
- Standard manufacturer warranty (duration subject to regional policy).
- Technical support and firmware updates available via www.topsccc.com.
- Free downloadable Virtual COM software for Windows 32-bit and 64-bit systems.

Maintenance:
- Periodic firmware updates recommended to maintain compatibility with network security standards.
- Ensure antenna and connectors are securely fastened to maintain signal integrity.
- Avoid exposure to moisture or corrosive environments beyond specified humidity limits.

Firmware Updates:
- Can be performed remotely via Ethernet interface.
- Update process secured through password authentication.

Troubleshooting & Testing:
- Built-in diagnostic LEDs indicate power, link, and data transmission status.
- Loopback test supported via HyperTerminal or similar software by shorting Tx/Rx lines.
- Reset button restores factory defaults for recovery from misconfiguration.

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### Summary

The EX9486C-W Serial to Wi-Fi Converter is a robust, industrial-grade communication gateway that seamlessly integrates serial-based equipment into modern IP networks. Powered by an ARM9 200 MHz processor and equipped with both Ethernet and Wi-Fi interfaces, it provides flexible, secure, and high-performance connectivity for industrial automation, remote monitoring, and IoT applications. With its wide operating temperature range, strong ESD protection, and comprehensive protocol support, the EX9486C-W is engineered for reliability in demanding environments. Its intuitive web-based configuration, multiple operation modes, and firmware upgradeability make it a future-proof solution for bridging legacy serial systems with contemporary network infrastructures.