OONO RS232 DB9M/F LED Link Tester with Surge Protection User Manual

1. Introduction

This manual provides detailed instructions for the OONO RS232 DB9M/F LED Link Tester with Surge Protection, Model F-1032. This device is designed to monitor RS232 serial communication signals and protect connected equipment from electrical surges. It is a passive device, requiring no external power, and offers a visual indication of data line states.

2. Product Features

• Bi-color LED Indicators: Equipped with 8 bi-color (red and green) LEDs to indicate the logic states for respective data lines: DCD, RXD, TXD, DTR, DSR, RTS, CTS, and RI. Green indicates a logic HIGH state, and red indicates a logic LOW state.
• Integrated Surge Protection: Protects the DB9 RS232 serial port from static discharge and power surges. All 8 signal lines (DCD, RXD, TXD, DTR, DSR, RTS, CTS, RI) are protected to pin-5 (Ground) via Transient Voltage Suppressors (TVS). Pin-5 (Ground) is also connected to the DB9 metal housing via TVS for enhanced protection.
• High Surge Dissipation: Features a peak pulse power dissipation of 600W (10/1000µS) and a breakdown voltage of +/-30V.
• Passive Operation: Requires no external power supply or software drivers, ensuring plug-and-play functionality.
• Adaptable Connectors: The jack sockets (nuts) on the tester can be easily unscrewed, allowing for compatibility with various serial connectors that may have different mating requirements.
• Broad OS Compatibility: Compatible with Windows 98, Me, XP, 2000, 2003, CE, Vista, Windows 7, Windows 8, Linux, and Mac OS 10.X.

3. Setup

The OONO RS232 DB9M/F LED Link Tester is designed for straightforward setup. Follow these steps to integrate it into your serial communication link:

1. Identify Connectors: The tester features both a male (DB9M) and a female (DB9F) DB9 connector. Determine which end of your serial cable or device requires a male or female connection.
2. Connect to Device/Cable: Plug the appropriate end of the tester into your RS232 serial port or cable. For example, if your device has a female DB9 port, connect the male end of the tester to it.
3. Connect to Other End: Connect the remaining end of the tester to your other serial device or cable. Ensure all connections are secure.
4. Optional: Remove Jack Sockets: If the nuts on the tester's connectors interfere with mating to another connector, they can be unscrewed and removed.

4. Operating Instructions

The OONO LED Link Tester operates passively, drawing power directly from the RS232 data lines. Its primary function is to provide visual feedback on the status of the serial communication signals.

4.1. LED Indicator Interpretation

The tester features 8 bi-color LEDs, each corresponding to a specific RS232 signal line. The color of the LED indicates the logic state of that line:

• Green LED: Indicates a logic HIGH state (typically a negative voltage, e.g., -3V to -15V, for RS232).
• Red LED: Indicates a logic LOW state (typically a positive voltage, e.g., +3V to +15V, for RS232).
• No LED Lit: May indicate an inactive line, a line at 0V, or a problem with the connection.

The LEDs correspond to the following signal lines:

• 1 DCD: Data Carrier Detect
• 2 RXD: Receive Data
• 3 TXD: Transmit Data
• 4 DTR: Data Terminal Ready
• 6 DSR: Data Set Ready
• 7 RTS: Request To Send
• 8 CTS: Clear To Send
• 9 RI: Ring Indicator

4.2. Monitoring Communication

Once connected, observe the LEDs to monitor the data flow and control signals. For example:

• When data is being transmitted, the TXD LED will flash.
• When data is being received, the RXD LED will flash.
• The RTS and CTS LEDs indicate the handshake status between devices.

Consistent illumination (green or red) on control lines (DCD, DTR, DSR, RTS, CTS, RI) indicates a stable state, while flashing indicates activity or changes in state.

5. Maintenance

The OONO RS232 DB9M/F LED Link Tester is a robust device designed for minimal maintenance.

• Cleaning: Use a soft, dry cloth to clean the exterior of the device. Avoid using liquid cleaners or solvents, as these can damage the casing or internal components.
• Storage: Store the tester in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
• Connector Care: Keep the DB9 connectors free from dust and debris. If necessary, use compressed air to clean the pins/sockets.

6. Troubleshooting

If you encounter issues while using the OONO RS232 DB9M/F LED Link Tester, consider the following troubleshooting steps:

• No LEDs Light Up:
  • Ensure the tester is securely connected to both serial ports/cables.
  • Verify that the connected devices are powered on and actively communicating or asserting signals. The tester draws power from the serial lines.
  • Check the serial cable for damage or incorrect wiring.
• Incorrect LED Indication:
  • Confirm the pinout of your RS232 connection matches standard DB9 configurations.
  • Ensure the connected devices are configured for the correct serial communication parameters (baud rate, data bits, parity, stop bits).
• Communication Issues Persist with Tester Connected:
  • While the tester is passive, in rare cases, it might introduce slight impedance. Try removing the tester to see if communication is restored. If so, the issue might be related to signal strength or specific device sensitivity.
  • Verify that the removable jack sockets are not causing a poor connection if they were adjusted.
• Physical Damage: If the device appears physically damaged, discontinue use and contact customer support.

7. Specifications

8. Warranty and Support

For information regarding warranty coverage, technical support, or service for your OONO RS232 DB9M/F LED Link Tester, please refer to the product packaging or contact the manufacturer directly. Contact details can typically be found on the official OONO website or through your point of purchase.