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- Eight Independent Serial Ports: Provides eight RS-422/485 ports via female DB25 connectors, allowing simultaneous connection of multiple serial devices.
- ADDC (Automatic Data Direction Control): Enables automatic switching between transmit and receive modes in RS-485 communication, eliminating the need for manual control and ensuring efficient half-duplex operation.
- Flexible RS-485 Configuration: Supports both 4-wire (full-duplex) and 2-wire (half-duplex) RS-485 modes, allowing compatibility with a wide range of serial communication devices and network topologies.
- High-Speed Data Transmission: Supports baud rates from 50 bps up to 230.4 kbps, ensuring reliable data throughput for industrial automation, instrumentation, and control systems.
- Industrial-Grade Design: Built for durability and long-term operation in industrial environments, with robust connectors and stable electrical performance.
- Dedicated Connectivity for Moxa Boards: Designed specifically for use with Moxa C168 and C218 series multiport serial interface cards, ensuring seamless integration and optimal performance.
- Included Connection Cable: Supplied with a 1.5-meter DB62-to-DB62 cable, providing a direct and secure connection between the connector box and the host interface card.
- Compact and Efficient Form Factor: The enclosure measures 247 × 108 × 35 mm, allowing easy installation in control cabinets, racks, or equipment panels.
- AC Power Supply: Operates from a 230 V AC power source, suitable for standard industrial and laboratory power systems.
- Independent Port Configuration: Each port can be configured independently for RS-422 or RS-485 operation, providing flexibility for mixed-device environments.
- ADDC (Automatic Data Direction Control): Enables automatic switching between transmit and receive modes in RS-485 communication, eliminating the need for manual control and ensuring efficient half-duplex operation.
- Flexible RS-485 Configuration: Supports both 4-wire (full-duplex) and 2-wire (half-duplex) RS-485 modes, allowing compatibility with a wide range of serial communication devices and network topologies.
- High-Speed Data Transmission: Supports baud rates from 50 bps up to 230.4 kbps, ensuring reliable data throughput for industrial automation, instrumentation, and control systems.
- Industrial-Grade Design: Built for durability and long-term operation in industrial environments, with robust connectors and stable electrical performance.
- Dedicated Connectivity for Moxa Boards: Designed specifically for use with Moxa C168 and C218 series multiport serial interface cards, ensuring seamless integration and optimal performance.
- Included Connection Cable: Supplied with a 1.5-meter DB62-to-DB62 cable, providing a direct and secure connection between the connector box and the host interface card.
- Compact and Efficient Form Factor: The enclosure measures 247 × 108 × 35 mm, allowing easy installation in control cabinets, racks, or equipment panels.
- AC Power Supply: Operates from a 230 V AC power source, suitable for standard industrial and laboratory power systems.
- Independent Port Configuration: Each port can be configured independently for RS-422 or RS-485 operation, providing flexibility for mixed-device environments.
1. Product Overview
Name: Opt8K/230
Model: Opt8K/230
Series: Compatible with Moxa C168 and C218 Series
Article Number: Opt8K/230
Manufacturer: Moxa
The Moxa Opt8K/230 is an industrial-grade 8-port RS-422/485 connector box designed to provide reliable, high-performance serial connectivity for multiport communication systems. It features eight female DB25 connectors and supports both 4-wire and 2-wire RS-485 communication modes with Automatic Data Direction Control (ADDC). The unit is engineered for use with Moxa’s C168 and C218 series multiport serial boards, offering flexible configuration, robust electrical characteristics, and dependable operation in demanding industrial environments.
2. Key Features
- Eight Independent Serial Ports: Provides eight RS-422/485 ports via female DB25 connectors, allowing simultaneous connection of multiple serial devices.
- ADDC (Automatic Data Direction Control): Enables automatic switching between transmit and receive modes in RS-485 communication, eliminating the need for manual control and ensuring efficient half-duplex operation.
- Flexible RS-485 Configuration: Supports both 4-wire (full-duplex) and 2-wire (half-duplex) RS-485 modes, allowing compatibility with a wide range of serial communication devices and network topologies.
- High-Speed Data Transmission: Supports baud rates from 50 bps up to 230.4 kbps, ensuring reliable data throughput for industrial automation, instrumentation, and control systems.
- Industrial-Grade Design: Built for durability and long-term operation in industrial environments, with robust connectors and stable electrical performance.
- Dedicated Connectivity for Moxa Boards: Designed specifically for use with Moxa C168 and C218 series multiport serial interface cards, ensuring seamless integration and optimal performance.
- Included Connection Cable: Supplied with a 1.5-meter DB62-to-DB62 cable, providing a direct and secure connection between the connector box and the host interface card.
- Compact and Efficient Form Factor: The enclosure measures 247 × 108 × 35 mm, allowing easy installation in control cabinets, racks, or equipment panels.
- AC Power Supply: Operates from a 230 V AC power source, suitable for standard industrial and laboratory power systems.
- Independent Port Configuration: Each port can be configured independently for RS-422 or RS-485 operation, providing flexibility for mixed-device environments.
3. Technical Specifications
- Product Type: 8-Port RS-422/485 Connector Box
- Model: Opt8K/230
- Manufacturer: Moxa
- Number of Ports: 8
- Connector Type: Female DB25 (x8)
- Interface Standards: RS-422 / RS-485
- Supported Modes:
- RS-422 (Full Duplex)
- RS-485 4-wire (Full Duplex)
- RS-485 2-wire (Half Duplex)
- Data Direction Control: Automatic (ADDC)
- Baud Rate Range: 50 bps to 230.4 kbps
- Cable Interface: DB62-to-DB62 connection cable (1.5 m length)
- Compatible Host Boards: Moxa C168 Series, Moxa C218 Series
- Power Supply: 230 V AC
- Dimensions: 247 mm (W) × 108 mm (D) × 35 mm (H)
- Weight: Not specified (typically lightweight aluminum or steel enclosure)
- Material: Industrial-grade metal housing for EMI protection and mechanical durability
- Operating Temperature: Not specified (typically 0–55°C for Moxa accessories)
- Storage Temperature: Not specified (typically -20–70°C)
- Humidity: Not specified (typically 5–95% non-condensing)
4. Functionality
The Opt8K/230 functions as an external serial connector expansion box that interfaces with Moxa’s multiport serial boards. It provides eight independent RS-422/485 communication channels, each accessible via a female DB25 connector.
Operational Principle:
- The box connects to a Moxa C168 or C218 series card through the included DB62-to-DB62 cable.
- Each of the eight ports can be configured individually for RS-422 or RS-485 operation, depending on the connected device’s requirements.
- The integrated ADDC circuitry automatically manages data direction control in RS-485 mode, ensuring seamless half-duplex communication without software intervention.
- The system supports both 2-wire and 4-wire RS-485 configurations, allowing for flexible network topologies such as point-to-point, multi-drop, or daisy-chain connections.
Use Cases and Applications:
- Industrial automation systems requiring multiple serial device connections
- Data acquisition and control systems (SCADA, PLC communication)
- Laboratory instrumentation and test setups
- Building management systems (BMS) and HVAC control
- Transportation and logistics systems with serial-based sensors or controllers
- Legacy equipment integration where RS-422/485 interfaces are standard
Compatibility:
- Fully compatible with Moxa C168 and C218 series multiport serial interface cards
- Supports standard RS-422/485 devices such as PLCs, sensors, controllers, and data loggers
- Can be integrated into Windows, Linux, or other operating systems supported by the host Moxa card drivers
5. Components & Accessories
Included Items:
- Opt8K/230 8-Port RS-422/485 Connector Box
- 1.5-meter DB62-to-DB62 connection cable (for linking to Moxa C168/C218 card)
- Integrated 230 V AC power supply
Optional Accessories (Typical):
- Additional DB62 cables of varying lengths (for extended distance between host and connector box)
- Mounting brackets or DIN-rail adapters (for cabinet or rack installation)
- RS-422/485 terminal adapters or breakout cables (for custom wiring)
Connectors:
- Front Panel: 8 × DB25 female connectors (RS-422/485 ports)
- Rear Panel: 1 × DB62 connector (host interface)
- Power Input: AC power inlet (230 V)
6. Installation & Setup
Requirements:
- Compatible Moxa C168 or C218 series multiport serial card installed in the host system
- Available 230 V AC power source
- Appropriate mounting space (minimum 247 × 108 × 35 mm clearance)
Installation Steps:
1. Mounting: Secure the Opt8K/230 in a stable location near the host computer or control cabinet. The compact design allows desktop placement or panel mounting.
2. Connection to Host: Connect the supplied 1.5 m DB62-to-DB62 cable between the Opt8K/230 and the Moxa C168/C218 card. Ensure the connectors are firmly seated and secured with screws.
3. Power Connection: Connect the unit to a 230 V AC power outlet.
4. Device Wiring: Attach RS-422/485 devices to the DB25 ports using appropriate cables. Each port can be configured independently for RS-422 or RS-485 operation.
5. Configuration:
- For RS-485 networks, select 2-wire or 4-wire mode as required.
- The ADDC feature automatically handles data direction, so no additional configuration is needed for half-duplex operation.
6. Testing: Verify communication between the host system and connected devices using diagnostic utilities or serial communication software.
Mounting Options:
- Desktop placement
- Panel or wall mounting (using optional brackets)
- Integration into rack-mounted systems
Configuration Tools:
- Configuration is primarily handled through the host system’s serial card driver and software utilities provided by Moxa.
7. Performance & Capabilities
Data Rate: 50 bps to 230.4 kbps, supporting a wide range of industrial communication speeds.
Transmission Distance: Dependent on cable quality and baud rate; typical RS-485 networks can reach up to 1200 meters at lower baud rates.
Signal Integrity: The metal enclosure and high-quality connectors ensure minimal signal interference and robust EMI protection.
Efficiency: ADDC ensures optimal half-duplex communication without manual RTS control, reducing latency and simplifying software design.
Capacity: Supports up to eight simultaneous serial connections, each independently configurable.
Reliability: Designed for continuous operation in industrial environments, with stable electrical performance and durable mechanical construction.
Limitations:
- Requires compatible Moxa C168 or C218 series host card.
- Maximum baud rate limited to 230.4 kbps (sufficient for most industrial applications).
- Environmental specifications not explicitly stated; assumed to follow standard Moxa accessory tolerances.
8. Standards & Compliance
Interface Standards:
- RS-422 (EIA-422)
- RS-485 (EIA-485)
Electrical Compliance:
- Meets standard voltage and signal level requirements for RS-422/485 communication.
Safety and Regulatory Compliance:
- Designed for use in industrial and laboratory environments compliant with CE and FCC standards (typical for Moxa products).
- Power input designed for 230 V AC mains in accordance with international safety standards.
Industry Standards:
- Compatible with standard serial communication protocols used in automation, instrumentation, and control systems.
- Conforms to Moxa’s quality and reliability standards for industrial communication equipment.
9. Additional Information
Warranty:
- Typically covered under Moxa’s standard warranty for accessories (commonly 3 years, depending on region and distributor).
Support:
- Full technical support available through Moxa’s global support network.
- Documentation, drivers, and configuration guides available on Moxa’s official website.
Maintenance:
- Minimal maintenance required; periodic inspection of connectors and cables recommended.
- Ensure proper ventilation and protection from excessive dust or moisture.
Firmware/Software Updates:
- The Opt8K/230 itself does not require firmware updates; configuration and communication parameters are managed through the host system’s serial card drivers.
Serviceability:
- Field-replaceable cables and connectors.
- Simple plug-and-play replacement with compatible units.
Typical Deployment Scenarios:
- Industrial control panels connecting multiple PLCs or sensors.
- Data acquisition systems requiring multiple serial inputs.
- Communication hubs for legacy serial devices in modern networked environments.
- Laboratory setups where multiple instruments communicate via RS-422/485.
### Summary
The Moxa Opt8K/230 is a robust, high-performance 8-port RS-422/485 connector box engineered for industrial and automation applications requiring multiple serial connections. With eight DB25 female ports, ADDC automatic data direction control, and support for both 2-wire and 4-wire RS-485 configurations, it delivers flexibility and reliability in complex communication networks. Designed for seamless integration with Moxa C168 and C218 series multiport serial cards, it ensures stable, high-speed data transmission up to 230.4 kbps.
Its compact 247 × 108 × 35 mm metal enclosure, 230 V AC power supply, and 1.5 m DB62-to-DB62 cable make installation straightforward and efficient. The Opt8K/230 is ideal for industrial automation, SCADA systems, and any environment requiring dependable multiport serial connectivity.
With Moxa’s proven engineering quality, the Opt8K/230 offers a reliable, long-term solution for expanding serial communication capabilities in professional and industrial systems.
Name: Opt8K/230
Model: Opt8K/230
Series: Compatible with Moxa C168 and C218 Series
Article Number: Opt8K/230
Manufacturer: Moxa
The Moxa Opt8K/230 is an industrial-grade 8-port RS-422/485 connector box designed to provide reliable, high-performance serial connectivity for multiport communication systems. It features eight female DB25 connectors and supports both 4-wire and 2-wire RS-485 communication modes with Automatic Data Direction Control (ADDC). The unit is engineered for use with Moxa’s C168 and C218 series multiport serial boards, offering flexible configuration, robust electrical characteristics, and dependable operation in demanding industrial environments.
2. Key Features
- Eight Independent Serial Ports: Provides eight RS-422/485 ports via female DB25 connectors, allowing simultaneous connection of multiple serial devices.
- ADDC (Automatic Data Direction Control): Enables automatic switching between transmit and receive modes in RS-485 communication, eliminating the need for manual control and ensuring efficient half-duplex operation.
- Flexible RS-485 Configuration: Supports both 4-wire (full-duplex) and 2-wire (half-duplex) RS-485 modes, allowing compatibility with a wide range of serial communication devices and network topologies.
- High-Speed Data Transmission: Supports baud rates from 50 bps up to 230.4 kbps, ensuring reliable data throughput for industrial automation, instrumentation, and control systems.
- Industrial-Grade Design: Built for durability and long-term operation in industrial environments, with robust connectors and stable electrical performance.
- Dedicated Connectivity for Moxa Boards: Designed specifically for use with Moxa C168 and C218 series multiport serial interface cards, ensuring seamless integration and optimal performance.
- Included Connection Cable: Supplied with a 1.5-meter DB62-to-DB62 cable, providing a direct and secure connection between the connector box and the host interface card.
- Compact and Efficient Form Factor: The enclosure measures 247 × 108 × 35 mm, allowing easy installation in control cabinets, racks, or equipment panels.
- AC Power Supply: Operates from a 230 V AC power source, suitable for standard industrial and laboratory power systems.
- Independent Port Configuration: Each port can be configured independently for RS-422 or RS-485 operation, providing flexibility for mixed-device environments.
3. Technical Specifications
- Product Type: 8-Port RS-422/485 Connector Box
- Model: Opt8K/230
- Manufacturer: Moxa
- Number of Ports: 8
- Connector Type: Female DB25 (x8)
- Interface Standards: RS-422 / RS-485
- Supported Modes:
- RS-422 (Full Duplex)
- RS-485 4-wire (Full Duplex)
- RS-485 2-wire (Half Duplex)
- Data Direction Control: Automatic (ADDC)
- Baud Rate Range: 50 bps to 230.4 kbps
- Cable Interface: DB62-to-DB62 connection cable (1.5 m length)
- Compatible Host Boards: Moxa C168 Series, Moxa C218 Series
- Power Supply: 230 V AC
- Dimensions: 247 mm (W) × 108 mm (D) × 35 mm (H)
- Weight: Not specified (typically lightweight aluminum or steel enclosure)
- Material: Industrial-grade metal housing for EMI protection and mechanical durability
- Operating Temperature: Not specified (typically 0–55°C for Moxa accessories)
- Storage Temperature: Not specified (typically -20–70°C)
- Humidity: Not specified (typically 5–95% non-condensing)
4. Functionality
The Opt8K/230 functions as an external serial connector expansion box that interfaces with Moxa’s multiport serial boards. It provides eight independent RS-422/485 communication channels, each accessible via a female DB25 connector.
Operational Principle:
- The box connects to a Moxa C168 or C218 series card through the included DB62-to-DB62 cable.
- Each of the eight ports can be configured individually for RS-422 or RS-485 operation, depending on the connected device’s requirements.
- The integrated ADDC circuitry automatically manages data direction control in RS-485 mode, ensuring seamless half-duplex communication without software intervention.
- The system supports both 2-wire and 4-wire RS-485 configurations, allowing for flexible network topologies such as point-to-point, multi-drop, or daisy-chain connections.
Use Cases and Applications:
- Industrial automation systems requiring multiple serial device connections
- Data acquisition and control systems (SCADA, PLC communication)
- Laboratory instrumentation and test setups
- Building management systems (BMS) and HVAC control
- Transportation and logistics systems with serial-based sensors or controllers
- Legacy equipment integration where RS-422/485 interfaces are standard
Compatibility:
- Fully compatible with Moxa C168 and C218 series multiport serial interface cards
- Supports standard RS-422/485 devices such as PLCs, sensors, controllers, and data loggers
- Can be integrated into Windows, Linux, or other operating systems supported by the host Moxa card drivers
5. Components & Accessories
Included Items:
- Opt8K/230 8-Port RS-422/485 Connector Box
- 1.5-meter DB62-to-DB62 connection cable (for linking to Moxa C168/C218 card)
- Integrated 230 V AC power supply
Optional Accessories (Typical):
- Additional DB62 cables of varying lengths (for extended distance between host and connector box)
- Mounting brackets or DIN-rail adapters (for cabinet or rack installation)
- RS-422/485 terminal adapters or breakout cables (for custom wiring)
Connectors:
- Front Panel: 8 × DB25 female connectors (RS-422/485 ports)
- Rear Panel: 1 × DB62 connector (host interface)
- Power Input: AC power inlet (230 V)
6. Installation & Setup
Requirements:
- Compatible Moxa C168 or C218 series multiport serial card installed in the host system
- Available 230 V AC power source
- Appropriate mounting space (minimum 247 × 108 × 35 mm clearance)
Installation Steps:
1. Mounting: Secure the Opt8K/230 in a stable location near the host computer or control cabinet. The compact design allows desktop placement or panel mounting.
2. Connection to Host: Connect the supplied 1.5 m DB62-to-DB62 cable between the Opt8K/230 and the Moxa C168/C218 card. Ensure the connectors are firmly seated and secured with screws.
3. Power Connection: Connect the unit to a 230 V AC power outlet.
4. Device Wiring: Attach RS-422/485 devices to the DB25 ports using appropriate cables. Each port can be configured independently for RS-422 or RS-485 operation.
5. Configuration:
- For RS-485 networks, select 2-wire or 4-wire mode as required.
- The ADDC feature automatically handles data direction, so no additional configuration is needed for half-duplex operation.
6. Testing: Verify communication between the host system and connected devices using diagnostic utilities or serial communication software.
Mounting Options:
- Desktop placement
- Panel or wall mounting (using optional brackets)
- Integration into rack-mounted systems
Configuration Tools:
- Configuration is primarily handled through the host system’s serial card driver and software utilities provided by Moxa.
7. Performance & Capabilities
Data Rate: 50 bps to 230.4 kbps, supporting a wide range of industrial communication speeds.
Transmission Distance: Dependent on cable quality and baud rate; typical RS-485 networks can reach up to 1200 meters at lower baud rates.
Signal Integrity: The metal enclosure and high-quality connectors ensure minimal signal interference and robust EMI protection.
Efficiency: ADDC ensures optimal half-duplex communication without manual RTS control, reducing latency and simplifying software design.
Capacity: Supports up to eight simultaneous serial connections, each independently configurable.
Reliability: Designed for continuous operation in industrial environments, with stable electrical performance and durable mechanical construction.
Limitations:
- Requires compatible Moxa C168 or C218 series host card.
- Maximum baud rate limited to 230.4 kbps (sufficient for most industrial applications).
- Environmental specifications not explicitly stated; assumed to follow standard Moxa accessory tolerances.
8. Standards & Compliance
Interface Standards:
- RS-422 (EIA-422)
- RS-485 (EIA-485)
Electrical Compliance:
- Meets standard voltage and signal level requirements for RS-422/485 communication.
Safety and Regulatory Compliance:
- Designed for use in industrial and laboratory environments compliant with CE and FCC standards (typical for Moxa products).
- Power input designed for 230 V AC mains in accordance with international safety standards.
Industry Standards:
- Compatible with standard serial communication protocols used in automation, instrumentation, and control systems.
- Conforms to Moxa’s quality and reliability standards for industrial communication equipment.
9. Additional Information
Warranty:
- Typically covered under Moxa’s standard warranty for accessories (commonly 3 years, depending on region and distributor).
Support:
- Full technical support available through Moxa’s global support network.
- Documentation, drivers, and configuration guides available on Moxa’s official website.
Maintenance:
- Minimal maintenance required; periodic inspection of connectors and cables recommended.
- Ensure proper ventilation and protection from excessive dust or moisture.
Firmware/Software Updates:
- The Opt8K/230 itself does not require firmware updates; configuration and communication parameters are managed through the host system’s serial card drivers.
Serviceability:
- Field-replaceable cables and connectors.
- Simple plug-and-play replacement with compatible units.
Typical Deployment Scenarios:
- Industrial control panels connecting multiple PLCs or sensors.
- Data acquisition systems requiring multiple serial inputs.
- Communication hubs for legacy serial devices in modern networked environments.
- Laboratory setups where multiple instruments communicate via RS-422/485.
### Summary
The Moxa Opt8K/230 is a robust, high-performance 8-port RS-422/485 connector box engineered for industrial and automation applications requiring multiple serial connections. With eight DB25 female ports, ADDC automatic data direction control, and support for both 2-wire and 4-wire RS-485 configurations, it delivers flexibility and reliability in complex communication networks. Designed for seamless integration with Moxa C168 and C218 series multiport serial cards, it ensures stable, high-speed data transmission up to 230.4 kbps.
Its compact 247 × 108 × 35 mm metal enclosure, 230 V AC power supply, and 1.5 m DB62-to-DB62 cable make installation straightforward and efficient. The Opt8K/230 is ideal for industrial automation, SCADA systems, and any environment requiring dependable multiport serial connectivity.
With Moxa’s proven engineering quality, the Opt8K/230 offers a reliable, long-term solution for expanding serial communication capabilities in professional and industrial systems.
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