Black Box CL1090A-F RS-232 to Current Loop Converter - Serial Port Signal Converter - 12V DC Input
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Product Overview
The Black Box CL1090A-F RS-232 to Current Loop Converter is a dedicated signal conversion device designed to bridge legacy serial communication systems. It translates RS-232 voltage signals into current loop signals, enabling reliable data transmission over longer distances where traditional RS-232 may be limited. This industrial-grade adapter maintains signal integrity in environments that require robust serial connectivity.
Built for integration into existing serial infrastructure, this converter supports continuous operation with its 12V DC power input. It serves as a practical solution for modernizing or extending serial networks without replacing entire systems. The unit is manufactured in the United States and backed by a one-year limited warranty, providing assurance for deployment in commercial and industrial settings.
Technical Overview
The CL1090A-F operates as a unidirectional or bidirectional signal converter depending on configuration, converting between the voltage-based RS-232 standard and the current-based 20mA current loop standard. This conversion allows serial devices to communicate over extended cable runs with improved noise immunity, which is critical in industrial automation, point-of-sale systems, and legacy equipment environments.
The converter requires a stable 12V DC power source for operation, ensuring consistent performance without drawing power from the serial port itself. Its compact design facilitates easy integration into control panels, equipment racks, or inline installations. The presence of a serial port interface confirms compatibility with standard DB9 or DB25 connectors commonly used in RS-232 applications.
Key Product Advantages
This converter extends the functional lifespan of legacy serial equipment by enabling integration with current loop systems, reducing the need for costly hardware replacements. It provides electrical isolation in many implementations, protecting sensitive equipment from ground loops and voltage spikes common in industrial environments.
Extended Distance Communication
Current loop signaling supports longer cable runs than standard RS-232, allowing devices to be placed hundreds of feet apart while maintaining reliable data transmission.
- Reduces signal degradation over distance
- Improves noise immunity in electrically noisy environments
Industrial Reliability
Designed for 24/7 operation in demanding settings, the converter maintains stable performance across temperature variations and continuous use cycles.
- 12V DC input ensures consistent power delivery
- Robust construction for vibration and shock resistance
Simplified Integration
The converter installs inline between existing RS-232 devices and current loop equipment, requiring minimal configuration or software changes.
- Preserves existing serial communication protocols
- No driver installation typically required
Deployment / Use Cases
The Black Box CL1090A-F is deployed wherever RS-232 devices need to interface with current loop systems. This includes industrial control environments where programmable logic controllers (PLCs) communicate with remote sensors using current loop, or in legacy retail systems where serial printers connect to point-of-sale terminals over extended distances.
Common applications include manufacturing floor automation, building management systems, laboratory equipment interfaces, and telecommunications infrastructure. The converter enables retrofitting of older serial equipment into modern networked environments or extends the reach of serial communications beyond the 50-foot typical limit of direct RS-232 connections.
Industrial Automation
Connect RS-232-enabled computers or HMIs to current loop sensors, actuators, and controllers on factory floors.
- Machine tool interfaces
- Process monitoring systems
- Environmental control systems
Legacy System Integration
Bridge older serial equipment like terminals, printers, or modems to current loop networks without replacing functional hardware.
- Retail POS systems
- Banking terminals
- Telecommunications equipment
Highlights
- Converts RS-232 signals to 20mA current loop for extended distance communication
- 12V DC power input for stable operation in industrial environments
- Serial port interface compatible with standard DB9/DB25 connectors
- Manufactured in the United States with quality construction
- One-year limited warranty for reliable deployment
- Industrial-grade design for continuous operation
- Enables integration of legacy serial equipment into modern systems
- Reduces signal degradation and improves noise immunity
Specifications
| Specifications | |
|---|---|
| Manufacturer | Black Box Corporation |
| Manufacturer Part Number | CL1090A-F |
| Brand Name | Black Box |
| Product Model | CL1090A-F |
| Product Name | RS-232 to Current Loop Converter |
| Product Type | Signal Converter |
| Interfaces/Ports | |
| Serial Port | Yes |
| Power Description | |
| Input Voltage | 12 V DC |
| Miscellaneous | |
| Country of Origin | United States |
| Warranty | |
| Limited Warranty | 1 Year |
FAQ
What does the Black Box CL1090A-F converter do?
The CL1090A-F converts RS-232 voltage signals to 20mA current loop signals, allowing serial devices to communicate over longer distances with better noise immunity. This enables integration between standard RS-232 equipment and current loop systems commonly found in industrial environments.
What power supply does this converter require?
The converter requires a 12V DC power input for operation. This external power source ensures consistent performance without drawing power from the connected serial port, making it suitable for continuous use in industrial settings.
What type of serial port does this converter support?
The converter supports standard RS-232 serial ports, typically using DB9 or DB25 connectors. It is compatible with most devices that output RS-232 signals, including computers, terminals, and industrial controllers.
Where is the Black Box CL1090A-F manufactured?
This converter is manufactured in the United States, ensuring quality construction and reliable performance. The domestic manufacturing supports consistent supply chain availability for commercial and industrial deployments.
What warranty comes with this signal converter?
The Black Box CL1090A-F comes with a one-year limited warranty. This warranty covers defects in materials and workmanship, providing assurance for integration into critical communication systems.
What are typical applications for this RS-232 to current loop converter?
Typical applications include industrial automation systems where PLCs interface with current loop sensors, legacy retail POS systems connecting to serial printers, building management systems, and telecommunications equipment. It enables extended distance communication beyond standard RS-232 limits.
| Qty | Price | Available |
|---|
