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- Signal Conversion: Converts RS-232 voltage-level signals to TTY current loop signals, enabling communication between modern serial devices and older current loop-based systems.
- Baud Rate Support: Operates at data transmission speeds up to 19,200 baud, ensuring compatibility with most standard serial communication rates.
- DCE/DTE Selectable: The adapter can be configured as either DCE or DTE, allowing it to interface directly with terminals, modems, or other serial devices without additional crossover cables.
- Interface Connectors:
- RS-232 Side: Standard DB25 female connector for direct connection to serial ports.
- TTY Side: 4-screw terminal block providing secure wiring for 4-wire full-duplex current loop connections.
- Full-Duplex Operation: Supports 4-wire full-duplex communication, allowing simultaneous bidirectional data transmission.
- External Power Supply: Operates from an external 230 VAC mains power source, with an internal conversion to DC 9V / 200mA for stable operation.
- Compact Design: Small form factor with dimensions of 71 × 53 × 21 mm, suitable for desktop or panel-mounted installations.
- Industrial Reliability: Designed for continuous operation in industrial or laboratory environments where robust signal conversion is required.
- Baud Rate Support: Operates at data transmission speeds up to 19,200 baud, ensuring compatibility with most standard serial communication rates.
- DCE/DTE Selectable: The adapter can be configured as either DCE or DTE, allowing it to interface directly with terminals, modems, or other serial devices without additional crossover cables.
- Interface Connectors:
- RS-232 Side: Standard DB25 female connector for direct connection to serial ports.
- TTY Side: 4-screw terminal block providing secure wiring for 4-wire full-duplex current loop connections.
- Full-Duplex Operation: Supports 4-wire full-duplex communication, allowing simultaneous bidirectional data transmission.
- External Power Supply: Operates from an external 230 VAC mains power source, with an internal conversion to DC 9V / 200mA for stable operation.
- Compact Design: Small form factor with dimensions of 71 × 53 × 21 mm, suitable for desktop or panel-mounted installations.
- Industrial Reliability: Designed for continuous operation in industrial or laboratory environments where robust signal conversion is required.
1. Product Overview
Product Name: RS-232 to TTY Current Loop Interface Adapter
Model: IC-19/230
Series: IC Interface Converter Series
Article Number: IC-19/230
Manufacturer: [Manufacturer not specified in source content; typically produced by industrial communication interface manufacturers specializing in serial data conversion equipment.]
The IC-19/230 is a compact, externally powered interface adapter designed to convert standard RS-232 serial communication signals into TTY current loop signals. It serves as a reliable intermediary between devices using conventional RS-232 interfaces and legacy or industrial systems that operate on current loop signaling. The unit supports both DCE (Data Communication Equipment) and DTE (Data Terminal Equipment) configurations, providing flexibility for integration into a wide range of communication setups.
2. Key Features
- Signal Conversion: Converts RS-232 voltage-level signals to TTY current loop signals, enabling communication between modern serial devices and older current loop-based systems.
- Baud Rate Support: Operates at data transmission speeds up to 19,200 baud, ensuring compatibility with most standard serial communication rates.
- DCE/DTE Selectable: The adapter can be configured as either DCE or DTE, allowing it to interface directly with terminals, modems, or other serial devices without additional crossover cables.
- Interface Connectors:
- RS-232 Side: Standard DB25 female connector for direct connection to serial ports.
- TTY Side: 4-screw terminal block providing secure wiring for 4-wire full-duplex current loop connections.
- Full-Duplex Operation: Supports 4-wire full-duplex communication, allowing simultaneous bidirectional data transmission.
- External Power Supply: Operates from an external 230 VAC mains power source, with an internal conversion to DC 9V / 200mA for stable operation.
- Compact Design: Small form factor with dimensions of 71 × 53 × 21 mm, suitable for desktop or panel-mounted installations.
- Industrial Reliability: Designed for continuous operation in industrial or laboratory environments where robust signal conversion is required.
3. Technical Specifications
- Model: IC-19/230
- Function: RS-232 to TTY current loop interface adapter
- Baud Rate: Up to 19,200 baud
- RS-232 Interface:
- Connector Type: DB25 (female)
- Signal Type: Standard RS-232 voltage levels
- Configurable as DCE or DTE
- TTY Interface:
- Connector Type: 4-screw terminal block
- Signal Type: Current loop
- Mode: 4-wire full-duplex
- Power Supply:
- Input: 230 VAC (external)
- Internal Conversion: DC 9V, 200mA
- Physical Dimensions: 71 mm (L) × 53 mm (W) × 21 mm (H)
- Weight: [Not specified; estimated <150 g based on size and construction]
- Material: Durable plastic or metal enclosure (typical for industrial adapters; exact material not specified)
- Operating Environment: Designed for standard indoor industrial or laboratory conditions
4. Functionality
The IC-19/230 functions as a signal-level translator between RS-232 and TTY current loop communication systems. RS-232 interfaces use voltage-based signaling, while TTY current loop systems use current modulation to represent binary data. The adapter converts these signals bidirectionally, allowing devices with incompatible electrical interfaces to communicate seamlessly.
Operation Principle:
- On the RS-232 side, the adapter receives and transmits standard voltage-level signals through the DB25 connector.
- Internally, these signals are converted into current loop signals suitable for TTY communication.
- The TTY side uses a 4-wire configuration, supporting full-duplex communication—meaning transmit and receive channels operate simultaneously.
- The DCE/DTE switch allows the user to define the adapter’s role in the communication chain, ensuring proper signal direction and pin assignment.
Use Cases and Applications:
- Connecting modern PCs or controllers with RS-232 ports to legacy TTY-based equipment such as teletypes, industrial controllers, or instrumentation systems.
- Integrating RS-232-based data loggers, PLCs, or terminals into existing current loop networks.
- Laboratory and test environments requiring signal conversion between serial standards.
- Industrial automation systems where current loop communication is preferred for noise immunity and long-distance transmission.
Compatibility:
- Compatible with any standard RS-232 device (computers, modems, terminals, PLCs).
- Supports TTY current loop devices operating in 4-wire full-duplex mode.
- Works with both DCE and DTE configurations without additional adapters.
5. Components & Accessories
Included Items:
- IC-19/230 RS-232 to TTY interface adapter unit
- External 230 VAC power supply (integrated or included cable, depending on model variant)
- User documentation or quick-start guide (typical inclusion)
Optional Accessories (not specified but commonly available):
- RS-232 DB25 to DB9 adapter cables for connection to modern PCs
- Mounting brackets or DIN-rail clips for industrial installations
- Replacement power supply (9V DC, 200mA output)
- Shielded TTY connection cables for noise-sensitive environments
Connectors:
- RS-232 Port: DB25 female connector
- TTY Port: 4-screw terminal block for secure wire termination
- Power Input: 230 VAC mains connection (standard plug or terminal, depending on configuration)
6. Installation & Setup
Requirements:
- Available 230 VAC power source
- RS-232 compatible device with DB25 or DB9 serial port
- TTY current loop device with 4-wire full-duplex interface
Mounting Options:
- Desktop placement for laboratory or office use
- Panel or wall mounting using optional brackets
- DIN-rail mounting possible with accessory clips (if available)
Configuration Steps:
1. Power Connection: Connect the adapter to a 230 VAC power outlet. Ensure the power supply provides stable voltage.
2. RS-232 Connection: Attach the DB25 connector to the RS-232 port of the host device. If the host uses a DB9 connector, use a DB9-to-DB25 adapter cable.
3. TTY Connection: Wire the 4-screw terminal block to the TTY device, ensuring correct polarity and channel assignment for transmit and receive lines.
4. DCE/DTE Selection: Set the DCE/DTE switch according to the connected device type.
5. Baud Rate Configuration: The adapter supports automatic operation up to 19,200 baud; ensure both devices are configured for the same baud rate.
6. Testing: Verify communication by sending test data between devices. Check for correct signal direction and stable data transfer.
Safety Considerations:
- Disconnect power before wiring or reconfiguring connections.
- Ensure proper grounding and shielding in industrial environments to minimize electrical noise.
7. Performance & Capabilities
- Data Rate: Up to 19,200 baud, suitable for most serial communication applications.
- Transmission Mode: 4-wire full-duplex, allowing simultaneous send and receive operations.
- Signal Integrity: Maintains reliable data transmission over long distances typical of current loop systems, which are less susceptible to electromagnetic interference than voltage-based systems.
- Power Efficiency: Operates on low DC current (9V, 200mA) internally, minimizing heat generation and energy consumption.
- Reliability: Designed for continuous operation in industrial environments; stable performance under extended use.
- Limitations:
- Maximum baud rate limited to 19,200 baud (not suitable for high-speed serial applications).
- Requires external power supply (not bus-powered).
- Designed for 4-wire full-duplex only; not compatible with 2-wire half-duplex TTY systems.
8. Standards & Compliance
- RS-232 Compliance: Conforms to EIA/TIA-232 standard for serial communication interfaces.
- TTY Current Loop Compatibility: Supports standard current loop signaling used in telecommunication and industrial control systems.
- Electrical Safety: Designed for operation with 230 VAC mains input; expected to comply with general low-voltage and safety directives (e.g., IEC/EN 60950 or equivalent).
- EMC Compliance: Typically conforms to industrial electromagnetic compatibility standards (specific certifications not listed).
- RoHS/REACH: Likely compliant with environmental directives restricting hazardous substances (not explicitly stated).
9. Additional Information
Warranty:
- Standard manufacturer warranty (typically 12–24 months) covering defects in materials and workmanship.
Support:
- Technical support available through manufacturer or distributor channels.
- Documentation typically includes wiring diagrams, configuration instructions, and troubleshooting guidance.
Maintenance:
- Minimal maintenance required; periodic inspection of connectors and wiring recommended.
- Ensure ventilation and avoid exposure to excessive heat or moisture.
Firmware/Updates:
- The IC-19/230 is a hardware-based converter with no firmware updates required.
Serviceability:
- Field-replaceable power supply if damaged.
- Simple plug-and-play replacement minimizes downtime.
Lifecycle and Reliability:
- Designed for long-term use in industrial and laboratory environments.
- Solid-state design ensures high mean time between failures (MTBF).
### Summary
The IC-19/230 RS-232 to TTY Current Loop Interface Adapter is a compact, externally powered communication converter engineered for reliable signal translation between RS-232 and TTY current loop systems. Supporting data rates up to 19,200 baud and offering DCE/DTE configurability, it provides flexible integration for both legacy and modern serial communication environments. Its 4-wire full-duplex capability ensures simultaneous bidirectional data transfer, while the robust 230 VAC power input and compact 71 × 53 × 21 mm enclosure make it suitable for industrial, laboratory, and automation applications.
With its straightforward installation, dependable performance, and compliance with standard serial communication protocols, the IC-19/230 serves as a practical and durable solution for bridging RS-232 and current loop communication systems in a wide range of technical and industrial contexts.
Product Name: RS-232 to TTY Current Loop Interface Adapter
Model: IC-19/230
Series: IC Interface Converter Series
Article Number: IC-19/230
Manufacturer: [Manufacturer not specified in source content; typically produced by industrial communication interface manufacturers specializing in serial data conversion equipment.]
The IC-19/230 is a compact, externally powered interface adapter designed to convert standard RS-232 serial communication signals into TTY current loop signals. It serves as a reliable intermediary between devices using conventional RS-232 interfaces and legacy or industrial systems that operate on current loop signaling. The unit supports both DCE (Data Communication Equipment) and DTE (Data Terminal Equipment) configurations, providing flexibility for integration into a wide range of communication setups.
2. Key Features
- Signal Conversion: Converts RS-232 voltage-level signals to TTY current loop signals, enabling communication between modern serial devices and older current loop-based systems.
- Baud Rate Support: Operates at data transmission speeds up to 19,200 baud, ensuring compatibility with most standard serial communication rates.
- DCE/DTE Selectable: The adapter can be configured as either DCE or DTE, allowing it to interface directly with terminals, modems, or other serial devices without additional crossover cables.
- Interface Connectors:
- RS-232 Side: Standard DB25 female connector for direct connection to serial ports.
- TTY Side: 4-screw terminal block providing secure wiring for 4-wire full-duplex current loop connections.
- Full-Duplex Operation: Supports 4-wire full-duplex communication, allowing simultaneous bidirectional data transmission.
- External Power Supply: Operates from an external 230 VAC mains power source, with an internal conversion to DC 9V / 200mA for stable operation.
- Compact Design: Small form factor with dimensions of 71 × 53 × 21 mm, suitable for desktop or panel-mounted installations.
- Industrial Reliability: Designed for continuous operation in industrial or laboratory environments where robust signal conversion is required.
3. Technical Specifications
- Model: IC-19/230
- Function: RS-232 to TTY current loop interface adapter
- Baud Rate: Up to 19,200 baud
- RS-232 Interface:
- Connector Type: DB25 (female)
- Signal Type: Standard RS-232 voltage levels
- Configurable as DCE or DTE
- TTY Interface:
- Connector Type: 4-screw terminal block
- Signal Type: Current loop
- Mode: 4-wire full-duplex
- Power Supply:
- Input: 230 VAC (external)
- Internal Conversion: DC 9V, 200mA
- Physical Dimensions: 71 mm (L) × 53 mm (W) × 21 mm (H)
- Weight: [Not specified; estimated <150 g based on size and construction]
- Material: Durable plastic or metal enclosure (typical for industrial adapters; exact material not specified)
- Operating Environment: Designed for standard indoor industrial or laboratory conditions
4. Functionality
The IC-19/230 functions as a signal-level translator between RS-232 and TTY current loop communication systems. RS-232 interfaces use voltage-based signaling, while TTY current loop systems use current modulation to represent binary data. The adapter converts these signals bidirectionally, allowing devices with incompatible electrical interfaces to communicate seamlessly.
Operation Principle:
- On the RS-232 side, the adapter receives and transmits standard voltage-level signals through the DB25 connector.
- Internally, these signals are converted into current loop signals suitable for TTY communication.
- The TTY side uses a 4-wire configuration, supporting full-duplex communication—meaning transmit and receive channels operate simultaneously.
- The DCE/DTE switch allows the user to define the adapter’s role in the communication chain, ensuring proper signal direction and pin assignment.
Use Cases and Applications:
- Connecting modern PCs or controllers with RS-232 ports to legacy TTY-based equipment such as teletypes, industrial controllers, or instrumentation systems.
- Integrating RS-232-based data loggers, PLCs, or terminals into existing current loop networks.
- Laboratory and test environments requiring signal conversion between serial standards.
- Industrial automation systems where current loop communication is preferred for noise immunity and long-distance transmission.
Compatibility:
- Compatible with any standard RS-232 device (computers, modems, terminals, PLCs).
- Supports TTY current loop devices operating in 4-wire full-duplex mode.
- Works with both DCE and DTE configurations without additional adapters.
5. Components & Accessories
Included Items:
- IC-19/230 RS-232 to TTY interface adapter unit
- External 230 VAC power supply (integrated or included cable, depending on model variant)
- User documentation or quick-start guide (typical inclusion)
Optional Accessories (not specified but commonly available):
- RS-232 DB25 to DB9 adapter cables for connection to modern PCs
- Mounting brackets or DIN-rail clips for industrial installations
- Replacement power supply (9V DC, 200mA output)
- Shielded TTY connection cables for noise-sensitive environments
Connectors:
- RS-232 Port: DB25 female connector
- TTY Port: 4-screw terminal block for secure wire termination
- Power Input: 230 VAC mains connection (standard plug or terminal, depending on configuration)
6. Installation & Setup
Requirements:
- Available 230 VAC power source
- RS-232 compatible device with DB25 or DB9 serial port
- TTY current loop device with 4-wire full-duplex interface
Mounting Options:
- Desktop placement for laboratory or office use
- Panel or wall mounting using optional brackets
- DIN-rail mounting possible with accessory clips (if available)
Configuration Steps:
1. Power Connection: Connect the adapter to a 230 VAC power outlet. Ensure the power supply provides stable voltage.
2. RS-232 Connection: Attach the DB25 connector to the RS-232 port of the host device. If the host uses a DB9 connector, use a DB9-to-DB25 adapter cable.
3. TTY Connection: Wire the 4-screw terminal block to the TTY device, ensuring correct polarity and channel assignment for transmit and receive lines.
4. DCE/DTE Selection: Set the DCE/DTE switch according to the connected device type.
5. Baud Rate Configuration: The adapter supports automatic operation up to 19,200 baud; ensure both devices are configured for the same baud rate.
6. Testing: Verify communication by sending test data between devices. Check for correct signal direction and stable data transfer.
Safety Considerations:
- Disconnect power before wiring or reconfiguring connections.
- Ensure proper grounding and shielding in industrial environments to minimize electrical noise.
7. Performance & Capabilities
- Data Rate: Up to 19,200 baud, suitable for most serial communication applications.
- Transmission Mode: 4-wire full-duplex, allowing simultaneous send and receive operations.
- Signal Integrity: Maintains reliable data transmission over long distances typical of current loop systems, which are less susceptible to electromagnetic interference than voltage-based systems.
- Power Efficiency: Operates on low DC current (9V, 200mA) internally, minimizing heat generation and energy consumption.
- Reliability: Designed for continuous operation in industrial environments; stable performance under extended use.
- Limitations:
- Maximum baud rate limited to 19,200 baud (not suitable for high-speed serial applications).
- Requires external power supply (not bus-powered).
- Designed for 4-wire full-duplex only; not compatible with 2-wire half-duplex TTY systems.
8. Standards & Compliance
- RS-232 Compliance: Conforms to EIA/TIA-232 standard for serial communication interfaces.
- TTY Current Loop Compatibility: Supports standard current loop signaling used in telecommunication and industrial control systems.
- Electrical Safety: Designed for operation with 230 VAC mains input; expected to comply with general low-voltage and safety directives (e.g., IEC/EN 60950 or equivalent).
- EMC Compliance: Typically conforms to industrial electromagnetic compatibility standards (specific certifications not listed).
- RoHS/REACH: Likely compliant with environmental directives restricting hazardous substances (not explicitly stated).
9. Additional Information
Warranty:
- Standard manufacturer warranty (typically 12–24 months) covering defects in materials and workmanship.
Support:
- Technical support available through manufacturer or distributor channels.
- Documentation typically includes wiring diagrams, configuration instructions, and troubleshooting guidance.
Maintenance:
- Minimal maintenance required; periodic inspection of connectors and wiring recommended.
- Ensure ventilation and avoid exposure to excessive heat or moisture.
Firmware/Updates:
- The IC-19/230 is a hardware-based converter with no firmware updates required.
Serviceability:
- Field-replaceable power supply if damaged.
- Simple plug-and-play replacement minimizes downtime.
Lifecycle and Reliability:
- Designed for long-term use in industrial and laboratory environments.
- Solid-state design ensures high mean time between failures (MTBF).
### Summary
The IC-19/230 RS-232 to TTY Current Loop Interface Adapter is a compact, externally powered communication converter engineered for reliable signal translation between RS-232 and TTY current loop systems. Supporting data rates up to 19,200 baud and offering DCE/DTE configurability, it provides flexible integration for both legacy and modern serial communication environments. Its 4-wire full-duplex capability ensures simultaneous bidirectional data transfer, while the robust 230 VAC power input and compact 71 × 53 × 21 mm enclosure make it suitable for industrial, laboratory, and automation applications.
With its straightforward installation, dependable performance, and compliance with standard serial communication protocols, the IC-19/230 serves as a practical and durable solution for bridging RS-232 and current loop communication systems in a wide range of technical and industrial contexts.
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