1. Introduction
The TELEBYTE Model 209FP is an RS-232 Micro Line Driver designed for efficient data transmission. It provides the functionality of the Model 201 Short Haul Modem in a compact form factor. This device features a female DB9 connector for direct connection to PC serial COM ports and an RJ-11 connector for line-side compatibility. The Model 209FP includes a DTE/DCE switch to manage pin 2 and 3 configurations on the DB9 connector, ensuring flexible integration into various serial communication setups.
2. Key Features
- Compatible with PC 386/486 Pentium COM Ports.
- Supports full duplex communication up to 19.2 KBPS.
- Operates without requiring external AC or DC power.
- Equipped with a DB9 connector and an RJ11 modular phone connector.
- Compact design, approximately one-third the volume of the Model 201.
3. Setup and Connection
The Model 209FP is designed for straightforward installation. Follow these steps to connect the device:
- Connect to PC: Plug the female DB9 connector of the Model 209FP directly into an available serial COM port on your PC (e.g., 386/486 Pentium compatible).
- Connect to Line: Connect an RJ-11 cable from the Model 209FP's RJ-11 port to the corresponding line connection. This line will typically connect to another compatible device, such as a Model 201 Short Haul Modem or a terminal server.
- DTE/DCE Switch: If necessary, adjust the DTE/DCE switch on the Model 209FP to reverse pins 2 and 3 of the DB9 connector. This switch allows the device to function correctly as either Data Terminal Equipment (DTE) or Data Communication Equipment (DCE) depending on the connected device's requirements.
This diagram illustrates a typical setup for the Model 209FP (represented as Model 209 in the diagram) and Model 201. The Model 209FP connects to a Remote Client (PC), and the Model 201 connects to a Terminal Server. Data transmission occurs between them at speeds up to 115.2 KBPS.
4. Operating Instructions
Once connected, the Model 209FP operates transparently, facilitating RS-232 data communication. No external power is required as the device draws power from the serial port.
- Data Rate: The device supports full duplex data transmission up to 19.2 KBPS. Ensure that the connected devices are configured to operate within this speed range for optimal performance.
- Compatibility: The Model 209FP is fully compatible with the Model 201 at the line side, allowing for seamless integration into existing TELEBYTE communication networks.
- DTE/DCE Configuration: The DTE/DCE switch allows you to configure the device's pinout. In most PC connections, the default setting will be appropriate. If communication issues arise, toggling this switch may resolve pin assignment conflicts.
5. Specifications
| Attribute | Value |
|---|---|
| Product Dimensions | 3 x 1.5 x 0.75 inches |
| Item Weight | 8 ounces |
| Model Number | 209FP |
| Brand | TELEBYTE |
| Compatible Devices | Personal Computer |
| Number of Ports | 1 (DB9) |
| Data Rate | Up to 19.2 KBPS (Full Duplex) |
| Power Requirement | No external AC or DC power required |
| Connectors | DB9 Female, RJ-11 |
| UPC | 701174100489 |
6. Troubleshooting
If you encounter issues with the Model 209FP, consider the following troubleshooting steps:
- No Communication:
- Verify all cable connections are secure at both ends (DB9 and RJ-11).
- Ensure the serial port on your PC is enabled and correctly configured in the operating system.
- Check the DTE/DCE switch setting. Try toggling it to the alternative position if communication fails.
- Confirm that the baud rate and other serial port settings (data bits, parity, stop bits) match on both connected devices.
- Intermittent Communication:
- Inspect cables for damage or loose connections.
- Ensure the line length does not exceed recommended limits for RS-232 communication at your chosen baud rate.
- Check for potential electromagnetic interference (EMI) from other electronic devices.
- Device Not Detected:
- The Model 209FP is a passive device and does not require drivers. Ensure your PC's serial port is functioning correctly.
- Test the serial port with another known-working device if possible.
7. Support and Warranty
For technical support or warranty inquiries regarding your TELEBYTE Model 209FP, please contact TELEBYTE, Inc. directly. Refer to the manufacturer's official website or product packaging for the most current contact information and warranty details.
Manufacturer: Telebyte, Inc.
Date First Available: January 10, 2020