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- Eight RS-232 Ports: Provides eight independent RS-232 (DCE) communication ports, each equipped with a female DB25 connector for direct connection to serial devices.
- DCE Configuration: Configured as Data Communication Equipment (DCE), allowing direct connection to Data Terminal Equipment (DTE) such as PCs, terminals, or controllers without the need for null-modem adapters.
- High-Quality Connectivity: Ensures stable signal transmission and minimal interference across all ports, suitable for demanding industrial communication environments.
- Integrated Connection Cable: Supplied with a 1.5-meter DB62-to-DB62 cable, enabling direct connection between the Opt8A box and compatible Moxa serial boards (C168/C218).
- Compact and Durable Design: The enclosure measures 247 × 108 × 35 mm, providing a compact footprint for desktop or rack-mounted installations while maintaining mechanical robustness.
- Plug-and-Play Integration: Designed for seamless integration with Moxa’s C168 and C218 multiport serial boards, ensuring quick setup and reliable operation.
- Industrial-Grade Reliability: Built with high-quality materials and connectors to ensure long-term durability and consistent performance in continuous operation environments.
- Ease of Maintenance: Modular design allows easy access to connectors and cables for maintenance or replacement.
- DCE Configuration: Configured as Data Communication Equipment (DCE), allowing direct connection to Data Terminal Equipment (DTE) such as PCs, terminals, or controllers without the need for null-modem adapters.
- High-Quality Connectivity: Ensures stable signal transmission and minimal interference across all ports, suitable for demanding industrial communication environments.
- Integrated Connection Cable: Supplied with a 1.5-meter DB62-to-DB62 cable, enabling direct connection between the Opt8A box and compatible Moxa serial boards (C168/C218).
- Compact and Durable Design: The enclosure measures 247 × 108 × 35 mm, providing a compact footprint for desktop or rack-mounted installations while maintaining mechanical robustness.
- Plug-and-Play Integration: Designed for seamless integration with Moxa’s C168 and C218 multiport serial boards, ensuring quick setup and reliable operation.
- Industrial-Grade Reliability: Built with high-quality materials and connectors to ensure long-term durability and consistent performance in continuous operation environments.
- Ease of Maintenance: Modular design allows easy access to connectors and cables for maintenance or replacement.
1. Product Overview
Product Name: Opt8A
Model: Opt8A
Series: Compatible with Moxa C168 and C218 Series
Article Number: Opt8A
Manufacturer: Moxa Technologies Co., Ltd.
The Moxa Opt8A is a professional-grade 8-port RS-232 (DCE) connector box designed to expand serial communication capabilities for Moxa’s multiport serial boards, specifically the C168 and C218 series. It provides a reliable and organized interface for connecting multiple RS-232 devices through standard DB25 connectors. The Opt8A is engineered for industrial and commercial environments requiring stable, high-quality serial communication, offering robust construction, precise signal routing, and compatibility with Moxa’s serial communication hardware ecosystem.
2. Key Features
- Eight RS-232 Ports: Provides eight independent RS-232 (DCE) communication ports, each equipped with a female DB25 connector for direct connection to serial devices.
- DCE Configuration: Configured as Data Communication Equipment (DCE), allowing direct connection to Data Terminal Equipment (DTE) such as PCs, terminals, or controllers without the need for null-modem adapters.
- High-Quality Connectivity: Ensures stable signal transmission and minimal interference across all ports, suitable for demanding industrial communication environments.
- Integrated Connection Cable: Supplied with a 1.5-meter DB62-to-DB62 cable, enabling direct connection between the Opt8A box and compatible Moxa serial boards (C168/C218).
- Compact and Durable Design: The enclosure measures 247 × 108 × 35 mm, providing a compact footprint for desktop or rack-mounted installations while maintaining mechanical robustness.
- Plug-and-Play Integration: Designed for seamless integration with Moxa’s C168 and C218 multiport serial boards, ensuring quick setup and reliable operation.
- Industrial-Grade Reliability: Built with high-quality materials and connectors to ensure long-term durability and consistent performance in continuous operation environments.
- Ease of Maintenance: Modular design allows easy access to connectors and cables for maintenance or replacement.
3. Technical Specifications
- Product Type: 8-port RS-232 (DCE) connector box
- Number of Ports: 8
- Connector Type: DB25 female (per port)
- Interface Standard: RS-232 (EIA/TIA-232)
- Configuration: DCE (Data Communication Equipment)
- Cable Type: DB62-to-DB62 connection cable
- Cable Length: 1.5 meters
- Compatibility: Moxa C168 and C218 series multiport serial boards
- Dimensions: 247 mm (W) × 108 mm (D) × 35 mm (H)
- Weight: Approximately 0.8–1.0 kg (typical, depending on cable inclusion)
- Material: Metal enclosure (steel or aluminum alloy, depending on production batch)
- Color: Industrial gray or metallic silver finish
- Mounting Options: Desktop placement or optional rack-mount brackets (depending on installation requirements)
- Operating Temperature: Typically 0°C to 55°C (standard office/industrial environment)
- Storage Temperature: -20°C to 70°C
- Humidity: 5% to 95% RH, non-condensing
- Signal Support: Full RS-232 signal set (TxD, RxD, RTS, CTS, DTR, DSR, DCD, RI, GND)
- Electrical Isolation: None (standard RS-232 level signaling)
- Power Requirements: Passive device (powered through connected serial board interface)
4. Functionality
The Moxa Opt8A functions as an external breakout box that provides eight RS-232 DCE ports for serial communication. It connects to a Moxa C168 or C218 multiport serial board via the included DB62-to-DB62 cable, which carries all necessary signal lines for eight independent RS-232 channels.
Each of the eight DB25 female connectors corresponds to one serial port on the host board, allowing direct connection to RS-232 DTE devices such as:
- Industrial controllers and PLCs
- Serial printers and plotters
- Modems and communication terminals
- Data acquisition systems
- Point-of-sale (POS) terminals
- Laboratory instruments and sensors
The Opt8A routes all RS-232 signals from the host board to the external connectors, maintaining signal integrity and ensuring proper pin assignments for DCE operation. This configuration simplifies cabling and reduces clutter in multi-device setups.
Compatibility:
- Fully compatible with Moxa C168 (8-port) and C218 (8-port) serial communication boards.
- Can be used in both Windows and Linux environments when paired with the appropriate Moxa driver and board.
- Supports standard RS-232 communication parameters (baud rate, parity, stop bits, data bits) as configured on the host system.
5. Components & Accessories
Included Items:
- 1 × Moxa Opt8A 8-port RS-232 (DCE) connector box
- 1 × 1.5-meter DB62-to-DB62 connection cable
- 1 × Quick installation guide or product label (depending on packaging)
Optional Accessories (sold separately):
- Rack-mount brackets or mounting kits for fixed installation
- Additional DB62-to-DB62 cables (for extended reach or replacement)
- DB25-to-DB9 adapters for devices using DB9 connectors
- Serial cables (DB25 male-to-female or DB25-to-DB9) for connecting end devices
Connectors:
- Front Panel: 8 × DB25 female connectors (RS-232 DCE)
- Rear Panel: 1 × DB62 female connector (to host board via included cable)
6. Installation & Setup
Requirements:
- Compatible Moxa C168 or C218 serial board installed in the host computer.
- Available DB62 connector on the serial board for connection.
- Appropriate serial cables for connecting end devices to the DB25 ports.
Installation Steps:
1. Power Off the Host System: Ensure the computer or controller with the C168/C218 board is powered off before connecting the Opt8A.
2. Connect the DB62 Cable: Attach one end of the included 1.5 m DB62-to-DB62 cable to the serial board’s DB62 connector and the other end to the Opt8A’s rear DB62 port.
3. Secure the Connection: Tighten the screws on both DB62 connectors to ensure a stable and secure connection.
4. Connect RS-232 Devices: Plug each RS-232 DTE device into the corresponding DB25 female port on the Opt8A.
5. Power On and Configure: Power on the host system and configure the serial ports through the operating system or Moxa driver utility.
6. Verify Communication: Test each port using terminal software or diagnostic tools to confirm proper operation.
Mounting Options:
- Desktop Use: The Opt8A can be placed on a flat surface near the host system.
- Rack or Panel Mounting: Optional brackets can be used for fixed installations in control cabinets or equipment racks.
Configuration:
- No internal configuration required; the Opt8A is a passive breakout device.
- Port parameters (baud rate, parity, etc.) are configured via the host system’s serial board settings.
7. Performance & Capabilities
- Communication Standard: RS-232 (as per EIA/TIA-232 specifications)
- Port Count: 8 independent channels
- Data Rate: Supports full RS-232 data rates up to the maximum supported by the connected C168/C218 board (typically up to 921.6 kbps per port, depending on board and driver).
- Signal Integrity: High-quality connectors and short internal traces minimize crosstalk and signal degradation.
- Cable Length: 1.5 m DB62-to-DB62 cable ensures flexibility in equipment placement without compromising signal quality.
- Latency: Negligible, as the Opt8A is a passive device with direct signal routing.
- Reliability: Designed for continuous operation in industrial and commercial environments.
- Limitations:
- No electrical isolation between ports (standard RS-232 levels).
- Limited to RS-232 signaling; does not support RS-422/485.
- Requires compatible Moxa serial board for operation.
8. Standards & Compliance
- Interface Standard: RS-232 (EIA/TIA-232)
- Connector Standard: DB25 (per EIA-574 pinout for RS-232 DCE)
- Cable Standard: DB62-to-DB62 (Moxa proprietary pin mapping for C168/C218 series)
- Environmental Compliance:
- RoHS compliant (Restriction of Hazardous Substances)
- Lead-free construction
- Quality Assurance: Manufactured under ISO 9001-certified processes
- Safety and EMC: Designed to meet general CE and FCC Class A requirements for electromagnetic compatibility when used with compliant host systems
9. Additional Information
Warranty:
- Standard Moxa warranty (typically 3 years, depending on region and distributor policy).
- Covers manufacturing defects and hardware failures under normal operating conditions.
Support:
- Full technical support available through Moxa’s global support network.
- Access to online documentation, driver downloads, and configuration guides.
- Firmware and driver updates provided for compatible serial boards (C168/C218).
Maintenance:
- Minimal maintenance required; periodic inspection of connectors and cables recommended.
- Clean connectors with appropriate electronic contact cleaner if necessary.
- Replace damaged cables or connectors immediately to maintain signal integrity.
Product Lifecycle & Updates:
- The Opt8A is part of Moxa’s long-term support hardware line, ensuring availability of replacement parts and accessories.
- Compatible with legacy and current Moxa serial communication boards, ensuring forward compatibility in existing installations.
Applications:
- Industrial automation and control systems
- Data acquisition and monitoring
- Telecommunications and networking equipment
- Laboratory instrumentation
- Point-of-sale and retail systems
- Transportation and logistics control systems
Summary
The Moxa Opt8A 8-Port RS-232 (DCE) Female DB25 Box is a robust, high-quality serial connectivity solution designed for use with Moxa’s C168 and C218 multiport serial boards. It provides eight independent RS-232 DCE ports through standard DB25 female connectors, enabling efficient and organized connection of multiple serial devices. With its durable metal enclosure, compact form factor (247 × 108 × 35 mm), and included 1.5 m DB62-to-DB62 cable, the Opt8A offers a reliable, plug-and-play interface for industrial and commercial serial communication applications.
Engineered for stability, compatibility, and ease of integration, the Opt8A is ideal for environments requiring multiple RS-232 connections, such as automation systems, data logging, and communication control centers. Its adherence to RS-232 standards, RoHS compliance, and Moxa’s quality assurance make it a dependable component in any professional serial communication setup.
Product Name: Opt8A
Model: Opt8A
Series: Compatible with Moxa C168 and C218 Series
Article Number: Opt8A
Manufacturer: Moxa Technologies Co., Ltd.
The Moxa Opt8A is a professional-grade 8-port RS-232 (DCE) connector box designed to expand serial communication capabilities for Moxa’s multiport serial boards, specifically the C168 and C218 series. It provides a reliable and organized interface for connecting multiple RS-232 devices through standard DB25 connectors. The Opt8A is engineered for industrial and commercial environments requiring stable, high-quality serial communication, offering robust construction, precise signal routing, and compatibility with Moxa’s serial communication hardware ecosystem.
2. Key Features
- Eight RS-232 Ports: Provides eight independent RS-232 (DCE) communication ports, each equipped with a female DB25 connector for direct connection to serial devices.
- DCE Configuration: Configured as Data Communication Equipment (DCE), allowing direct connection to Data Terminal Equipment (DTE) such as PCs, terminals, or controllers without the need for null-modem adapters.
- High-Quality Connectivity: Ensures stable signal transmission and minimal interference across all ports, suitable for demanding industrial communication environments.
- Integrated Connection Cable: Supplied with a 1.5-meter DB62-to-DB62 cable, enabling direct connection between the Opt8A box and compatible Moxa serial boards (C168/C218).
- Compact and Durable Design: The enclosure measures 247 × 108 × 35 mm, providing a compact footprint for desktop or rack-mounted installations while maintaining mechanical robustness.
- Plug-and-Play Integration: Designed for seamless integration with Moxa’s C168 and C218 multiport serial boards, ensuring quick setup and reliable operation.
- Industrial-Grade Reliability: Built with high-quality materials and connectors to ensure long-term durability and consistent performance in continuous operation environments.
- Ease of Maintenance: Modular design allows easy access to connectors and cables for maintenance or replacement.
3. Technical Specifications
- Product Type: 8-port RS-232 (DCE) connector box
- Number of Ports: 8
- Connector Type: DB25 female (per port)
- Interface Standard: RS-232 (EIA/TIA-232)
- Configuration: DCE (Data Communication Equipment)
- Cable Type: DB62-to-DB62 connection cable
- Cable Length: 1.5 meters
- Compatibility: Moxa C168 and C218 series multiport serial boards
- Dimensions: 247 mm (W) × 108 mm (D) × 35 mm (H)
- Weight: Approximately 0.8–1.0 kg (typical, depending on cable inclusion)
- Material: Metal enclosure (steel or aluminum alloy, depending on production batch)
- Color: Industrial gray or metallic silver finish
- Mounting Options: Desktop placement or optional rack-mount brackets (depending on installation requirements)
- Operating Temperature: Typically 0°C to 55°C (standard office/industrial environment)
- Storage Temperature: -20°C to 70°C
- Humidity: 5% to 95% RH, non-condensing
- Signal Support: Full RS-232 signal set (TxD, RxD, RTS, CTS, DTR, DSR, DCD, RI, GND)
- Electrical Isolation: None (standard RS-232 level signaling)
- Power Requirements: Passive device (powered through connected serial board interface)
4. Functionality
The Moxa Opt8A functions as an external breakout box that provides eight RS-232 DCE ports for serial communication. It connects to a Moxa C168 or C218 multiport serial board via the included DB62-to-DB62 cable, which carries all necessary signal lines for eight independent RS-232 channels.
Each of the eight DB25 female connectors corresponds to one serial port on the host board, allowing direct connection to RS-232 DTE devices such as:
- Industrial controllers and PLCs
- Serial printers and plotters
- Modems and communication terminals
- Data acquisition systems
- Point-of-sale (POS) terminals
- Laboratory instruments and sensors
The Opt8A routes all RS-232 signals from the host board to the external connectors, maintaining signal integrity and ensuring proper pin assignments for DCE operation. This configuration simplifies cabling and reduces clutter in multi-device setups.
Compatibility:
- Fully compatible with Moxa C168 (8-port) and C218 (8-port) serial communication boards.
- Can be used in both Windows and Linux environments when paired with the appropriate Moxa driver and board.
- Supports standard RS-232 communication parameters (baud rate, parity, stop bits, data bits) as configured on the host system.
5. Components & Accessories
Included Items:
- 1 × Moxa Opt8A 8-port RS-232 (DCE) connector box
- 1 × 1.5-meter DB62-to-DB62 connection cable
- 1 × Quick installation guide or product label (depending on packaging)
Optional Accessories (sold separately):
- Rack-mount brackets or mounting kits for fixed installation
- Additional DB62-to-DB62 cables (for extended reach or replacement)
- DB25-to-DB9 adapters for devices using DB9 connectors
- Serial cables (DB25 male-to-female or DB25-to-DB9) for connecting end devices
Connectors:
- Front Panel: 8 × DB25 female connectors (RS-232 DCE)
- Rear Panel: 1 × DB62 female connector (to host board via included cable)
6. Installation & Setup
Requirements:
- Compatible Moxa C168 or C218 serial board installed in the host computer.
- Available DB62 connector on the serial board for connection.
- Appropriate serial cables for connecting end devices to the DB25 ports.
Installation Steps:
1. Power Off the Host System: Ensure the computer or controller with the C168/C218 board is powered off before connecting the Opt8A.
2. Connect the DB62 Cable: Attach one end of the included 1.5 m DB62-to-DB62 cable to the serial board’s DB62 connector and the other end to the Opt8A’s rear DB62 port.
3. Secure the Connection: Tighten the screws on both DB62 connectors to ensure a stable and secure connection.
4. Connect RS-232 Devices: Plug each RS-232 DTE device into the corresponding DB25 female port on the Opt8A.
5. Power On and Configure: Power on the host system and configure the serial ports through the operating system or Moxa driver utility.
6. Verify Communication: Test each port using terminal software or diagnostic tools to confirm proper operation.
Mounting Options:
- Desktop Use: The Opt8A can be placed on a flat surface near the host system.
- Rack or Panel Mounting: Optional brackets can be used for fixed installations in control cabinets or equipment racks.
Configuration:
- No internal configuration required; the Opt8A is a passive breakout device.
- Port parameters (baud rate, parity, etc.) are configured via the host system’s serial board settings.
7. Performance & Capabilities
- Communication Standard: RS-232 (as per EIA/TIA-232 specifications)
- Port Count: 8 independent channels
- Data Rate: Supports full RS-232 data rates up to the maximum supported by the connected C168/C218 board (typically up to 921.6 kbps per port, depending on board and driver).
- Signal Integrity: High-quality connectors and short internal traces minimize crosstalk and signal degradation.
- Cable Length: 1.5 m DB62-to-DB62 cable ensures flexibility in equipment placement without compromising signal quality.
- Latency: Negligible, as the Opt8A is a passive device with direct signal routing.
- Reliability: Designed for continuous operation in industrial and commercial environments.
- Limitations:
- No electrical isolation between ports (standard RS-232 levels).
- Limited to RS-232 signaling; does not support RS-422/485.
- Requires compatible Moxa serial board for operation.
8. Standards & Compliance
- Interface Standard: RS-232 (EIA/TIA-232)
- Connector Standard: DB25 (per EIA-574 pinout for RS-232 DCE)
- Cable Standard: DB62-to-DB62 (Moxa proprietary pin mapping for C168/C218 series)
- Environmental Compliance:
- RoHS compliant (Restriction of Hazardous Substances)
- Lead-free construction
- Quality Assurance: Manufactured under ISO 9001-certified processes
- Safety and EMC: Designed to meet general CE and FCC Class A requirements for electromagnetic compatibility when used with compliant host systems
9. Additional Information
Warranty:
- Standard Moxa warranty (typically 3 years, depending on region and distributor policy).
- Covers manufacturing defects and hardware failures under normal operating conditions.
Support:
- Full technical support available through Moxa’s global support network.
- Access to online documentation, driver downloads, and configuration guides.
- Firmware and driver updates provided for compatible serial boards (C168/C218).
Maintenance:
- Minimal maintenance required; periodic inspection of connectors and cables recommended.
- Clean connectors with appropriate electronic contact cleaner if necessary.
- Replace damaged cables or connectors immediately to maintain signal integrity.
Product Lifecycle & Updates:
- The Opt8A is part of Moxa’s long-term support hardware line, ensuring availability of replacement parts and accessories.
- Compatible with legacy and current Moxa serial communication boards, ensuring forward compatibility in existing installations.
Applications:
- Industrial automation and control systems
- Data acquisition and monitoring
- Telecommunications and networking equipment
- Laboratory instrumentation
- Point-of-sale and retail systems
- Transportation and logistics control systems
Summary
The Moxa Opt8A 8-Port RS-232 (DCE) Female DB25 Box is a robust, high-quality serial connectivity solution designed for use with Moxa’s C168 and C218 multiport serial boards. It provides eight independent RS-232 DCE ports through standard DB25 female connectors, enabling efficient and organized connection of multiple serial devices. With its durable metal enclosure, compact form factor (247 × 108 × 35 mm), and included 1.5 m DB62-to-DB62 cable, the Opt8A offers a reliable, plug-and-play interface for industrial and commercial serial communication applications.
Engineered for stability, compatibility, and ease of integration, the Opt8A is ideal for environments requiring multiple RS-232 connections, such as automation systems, data logging, and communication control centers. Its adherence to RS-232 standards, RoHS compliance, and Moxa’s quality assurance make it a dependable component in any professional serial communication setup.
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