Lynx Technik yellobrik ODT 1540 RS232/422/485 and GPI Fiber Transceiver (CWDM)

The ODT 1540 module is engineered to overcome the limitations of traditional copper-based serial and GPI connections by leveraging fiber optic technology. When deployed in pairs—one at each end of the transmission link—the ODT 1540 facilitates the seamless extension of serial communications and GPI signals over single-mode fiber. A single RJ45 electrical serial connection can be configured for RS232, RS422, or RS485 standards, while a separate RJ45 connector accommodates two electrical GPI inputs and outputs. This design ensures that both serial communications and GPI signals are transmitted concurrently over the same fiber link. The module is protocol-agnostic, supporting all standard and proprietary serial protocols at data rates ranging from 300 to 460K Baud, with automatic sensing and adjustment. An integrated DIP switch provides precise control over the serial mode of operation, including selections for the serial standard, serial termination, RX/TX crossover, and RS422/485 data direction (automatic or manual). Data activity LEDs are provided for both the serial and GPI ports, offering clear visual indicators of operational status. Notably, the ODT 1540 supports mixing and matching of serial standards; for example, the transmitting module can be configured for RS232 input, while the receiving module is set for RS422 output. The module is designed for plug-and-play operation, is hot-pluggable, and requires no special software drivers, ensuring straightforward integration into existing systems. :contentReference[oaicite:4]{index=4}

Key Features

• Extends serial and GPI connections up to 40 km over fiber
• Supports serial RS232, RS422, or RS485 standards
• Provides 2 x GPI connections
• Selectable from 18 CWDM wavelengths for flexible deployment
• Utilizes LC/PC duplex fiber connections
• Features switchable RX/TX crossover
• Offers automatic or manual data direction control
• Includes switchable end-of-line termination
• Plug-and-play operation with no need for additional software drivers
• Supports all serial protocols (standard or proprietary) at 300 - 460K Baud (auto-sensing and auto-adjusting)

Technical Specifications

Serial Port

• Connector: RJ45
• Configurable for RS232, RS422, or RS485
• Data Rates: 300 to 460K Baud (auto-sensing and auto-adjusting)
• Protocol Support: All standard and proprietary serial protocols
• Features: Switchable RX/TX crossover, automatic or manual data direction, switchable end-of-line termination

GPI Port

• Connector: RJ45
• Number of GPI Channels: 2 (inputs and outputs)
• Functionality: Extends GPI signals over fiber in conjunction with serial data

Fiber Optic Interface

• Fiber Type: Single-mode
• Connectors: LC/PC duplex
• Wavelengths: 18 selectable CWDM wavelengths (1270 nm to 1610 nm)
• Transmission Distance: Up to 40 km (depending on SFP module and fiber link conditions)

Power Requirements

• Input Voltage: 9-14V DC
• Power Consumption: Approximately 2.0W

Physical Characteristics

• Dimensions: 105 mm x 40 mm x 22 mm
• Weight: Approximately 150 g
• Operating Temperature: 0°C to 50°C
• Humidity: 0% to 90% (non-condensing)

Ordering Information

• ODT 1540: RS232/422/485 and GPI Fiber Transceiver (CWDM)
• OH-TR-54-XXXX-LC: Fiber SFP Data Transceiver (CWDM) 40 km
• OH-TR-58-XXXX-LC: Fiber SFP Data Transceiver (CWDM) 80 km
• RFR 1200: High-power yellobrik 19” 1RU Rack Frame
• RFR 1001: yellobrik Mounting Bracket
• LC/ST: Duplex LC Connector to ST Connector Adapter Kit
• LC/SC: Duplex LC Connector to SC Connector Adapter Kit
• XLR 1000: 4-Pin XLR Camera Battery Adapter Cable
• P-TAP 1000: P-TAP Battery Adapter Cable