1. บทนำ
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. คุณสมบัติของผลิตภัณฑ์
- 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.
- ระบบป้องกันไฟกระชากในตัว: 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.
- การทำงานแบบพาสซีฟ: 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.
- ความเข้ากันได้ของระบบปฏิบัติการแบบกว้าง: Compatible with Windows 98, Me, XP, 2000, 2003, CE, Vista, Windows 7, Windows 8, Linux, and Mac OS 10.X.
3. การตั้งค่า
The OONO RS232 DB9M/F LED Link Tester is designed for straightforward setup. Follow these steps to integrate it into your serial communication link:
- ระบุตัวเชื่อมต่อ: 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.
- 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.
- Connect to Other End: Connect the remaining end of the tester to your other serial device or cable. Ensure all connections are secure.
- 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. คู่มือการใช้งาน
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:
- ไฟ LED สีเขียว: Indicates a logic HIGH state (typically a negative voltage, e.g., -3V to -15V, for RS232).
- ไฟ LED สีแดง: 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: การตรวจจับผู้ให้บริการข้อมูล
- 2 RXD: รับข้อมูล
- 3 TXD: ส่งข้อมูล
- 4 DTR: เทอร์มินัลข้อมูลพร้อมแล้ว
- 6 DSR: ชุดข้อมูลพร้อม
- 7 RTS: คำขอให้ส่ง
- 8 CTS: ล้างเพื่อส่ง
- 9 RI: ตัวบ่งชี้แหวน

4.2. Monitoring Communication
Once connected, observe the LEDs to monitor the data flow and control signals. For exampเลอ:
- When data is being transmitted, the เท็กซัสดี ไฟ LED จะกะพริบ
- When data is being received, the เรกซ์ดี ไฟ LED จะกะพริบ
- การ อาร์ทีเอส และ ซีทีเอส 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. การบำรุงรักษา
The OONO RS232 DB9M/F LED Link Tester is a robust device designed for minimal maintenance.
- การทำความสะอาด: Use a soft, dry cloth to clean the exterior of the device. Avoid using liquid cleaners or solvents, as these can damage the casing หรือส่วนประกอบภายใน
- พื้นที่จัดเก็บ: Store the tester in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- การดูแลตัวเชื่อมต่อ: Keep the DB9 connectors free from dust and debris. If necessary, use compressed air to clean the pins/sockets.
6 การแก้ไขปัญหา
If you encounter issues while using the OONO RS232 DB9M/F LED Link Tester, consider the following troubleshooting steps:
- ไม่มีไฟ LED สว่างขึ้น:
- 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.
- การแสดงผล LED ไม่ถูกต้อง:
- 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.
- ความเสียหายทางกายภาพ: If the device appears physically damaged, discontinue use and contact customer support.
7. ข้อมูลจำเพาะ
| หมายเลขรุ่น | เอฟ-1032 |
| ยี่ห้อ | อูโน่ |
| ประเภทขั้วต่อ | DB9 ตัวผู้ถึงตัวเมีย DB9 |
| ไฟ LED แสดงสถานะ | 8 Bi-color LEDs (DCD, RXD, TXD, DTR, DSR, RTS, CTS, RI) |
| ระบบป้องกันไฟกระชาก | Yes, via TVS diodes on all 8 signal lines to GND and GND to housing |
| Peak Pulse Power Dissipation | 600W (10/1000µS) |
| พังทลายฉบับtage | +/- 30V |
| แหล่งพลังงาน | No external power required (passive, draws power from serial lines) |
| สี | สีดำ |
| น้ำหนักสินค้า | 0.06 กิโลกรัม (ประมาณ 2.08 ออนซ์) |
| ผู้ผลิต | CZH-LABS |

8. การรับประกันและการสนับสนุน
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 webไซต์หรือผ่านจุดซื้อของคุณ





