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Item #:
4967404
RS-232 LED Link Signal Tester - DB-9 Male to DB-9 Female Connections for Serial Communication Monitoring
Item #:
4967404
LAK 772571
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What Stands Out
LED Indicators
Equipped with clear LED indicators for instant status feedback, this tester allows users to easily identify connection issues and ensure reliable communication without needing additional tools.
DB-9 Compatibility
Designed to work seamlessly with DB-9 connectors, it simplifies testing for RS-232 connections, making it an essential tool for professionals who work with serial devices regularly.
User-Friendly Design
The compact and intuitive design makes it accessible for both seasoned technicians and beginners, ensuring that anyone can perform quick tests with minimal technical knowledge required.
Product Details
| Compatible Devices | Devices with RS-232 DB9 female serial ports such as printers, modems, CNS machines, PLCs, radios, etc. |
| Specific Uses For Product | Test the connection on male or female 9-Pin serial connections |
| Connector Type | DB-9 |
| Number of Ports | 1 |
| Power Plug Type | No Plug |
| Brand | CABLEMAX |
| Model Number | DB9-TERS |
| UPC | 729440626303 |
| Manufacturer | Cablemax |
| Mfr Part Number | DB9-TERS |
| Item Dimensions | 1.77 x 1.38 x 0.82 inches (4.5 x 3.5 x 2.1 cm) |
| Item Weight | 1 ounces (28.35 grams) |
| Package Quantity | 1 |
| Unit Count | 1 Count |
| Number of Items | 1 |
| Color | Black |
| Finish | Plastic |
| Compatible Devices | Devices with RS-232 DB9 female serial ports such as printers, modems, CNS machines, PLCs, radios, etc. See more |
| Item dimensions L x W x H | 1.77 x 1.38 x 0.82 inches (4.5 x 3.5 x 2.1 cm) |
Who Should Buy?
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Network Technicians
Ideal for network technicians needing to troubleshoot and verify RS-232 connections efficiently using LED indicators.
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Serial Device Users
Great option for users testing serial devices to ensure proper communication and connectivity using standard DB-9 connectors.
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Students in Electronics
Beneficial for electronics students learning about serial communication and testing protocols with practical hands-on experience.
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Wireless Device Users
Not suitable for users of wireless devices as the product focuses solely on wired RS-232 connections.
Product Description
RS-232 LED Link Signal Tester - DB-9 Male to DB-9 Female Connections for Serial Communication Monitoring
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is an RS-232 LED Link Tester DB-9 Male to DB-9 Female?
Answer: An RS-232 LED Link Tester is a diagnostic tool designed to test and indicate the status of RS-232 serial communication lines. It features a DB-9 Male to DB-9 Female configuration, allowing for easy connection to different devices. This device provides visual signals through LEDs, which indicate whether the data lines are functioning correctly. It's ideal for technicians who need to troubleshoot serial connections in a variety of applications such as point-of-sale systems, industrial automation, and networking equipment. -
Question:
How does the RS-232 LED Link Tester work?
Answer: The RS-232 LED Link Tester works by connecting between two devices with RS-232 interfaces using its DB-9 connectors. When powered, it monitors the data lines and provides LED indicators for transmit (TX), receive (RX), and control signals. This instant feedback helps users identify communication issues quickly. For example, if the TX LED is not lighting up, it indicates that the transmitting device may not be sending signals, which helps in diagnosing connection problems swiftly. -
Question:
What are the benefits of using an RS-232 LED Link Tester?
Answer: Using an RS-232 LED Link Tester has several benefits: it allows for quick identification of communication issues, saves repair time, and reduces the need for advanced diagnostic equipment. Its visual indicators provide a straightforward method for monitoring data lines, making it accessible for both professionals and novices. This tool is especially useful in environments like IT departments, labs, or during setup and maintenance of serial communication devices. -
Question:
Can the RS-232 LED Link Tester be used with laptops?
Answer: Yes, the RS-232 LED Link Tester can be used with laptops that have RS-232 ports, or alternatively, you can use a USB to RS-232 adapter to connect the tester. This compatibility allows for testing connections between laptops and other devices like printers or serial modems. By using the tester in this scenario, users can ensure their laptop's communication interfaces are functioning properly before initiating data transfer operations. -
Question:
Is the RS-232 LED Link Tester suitable for all RS-232 devices?
Answer: The RS-232 LED Link Tester is designed to work with any RS-232 compliant devices. Whether it's a PC, a router, or an industrial piece of equipment, this tool will provide valuable insights into the communication status. It facilitates the troubleshooting of diverse devices in fields such as telecommunications and automation. Therefore, if you're planning to diagnose or monitor any RS-232 communications, this tester is a versatile addition to your toolkit. -
Question:
Do I need to power the RS-232 LED Link Tester?
Answer: Yes, the RS-232 LED Link Tester requires power to operate its LED indicators. Typically, it draws power from the RS-232 connection itself, so when it’s connected to a powered RS-232 device, no additional power source is necessary. This feature adds convenience by eliminating the need for batteries or external power adapters. Thus, simply connecting the tester inline is often sufficient to start diagnostics almost immediately. -
Question:
What should I do if the RS-232 LED Link Tester shows no LEDs light up?
Answer: If the RS-232 LED Link Tester shows no LED activity, first check the connections to ensure that the tester is securely attached to the devices. Next, confirm whether the connected devices are powered on and configured for communication. If the issue persists, there may be a fault with the RS-232 output on the device, indicating a need for further examination or repair. These troubleshooting steps can significantly aid in identifying the root cause promptly. -
Question:
Can the RS-232 LED Link Tester be used in industrial applications?
Answer: Absolutely, the RS-232 LED Link Tester is well-suited for industrial applications. Its robustness makes it a reliable choice for testing connections between industrial PCs, PLCs, and serial communication devices. In industrial settings, maintaining effective communication between equipment is crucial for operational efficiency. The tester allows technicians to quickly verify serial connections, reducing downtime and facilitating smooth operations. -
Question:
Where can I buy RS-232 LED Link Tester DB-9 Male to DB-9 Female in Laos?
Answer: You can buy the RS-232 LED Link Tester DB-9 Male to DB-9 Female on Ubuy. Ubuy offers a wide selection of electronic tools, including diagnostic testers like the RS-232 LED Link Tester, ensuring you can find what you need conveniently and reliably. -
Question:
Is there a specific maintenance procedure for the RS-232 LED Link Tester?
Answer: Typically, the RS-232 LED Link Tester requires minimal maintenance due to its simple design. It is advisable to keep the connectors free from dust and moisture to ensure reliable connections. Additionally, storing the tester in a protective case when not in use will help prevent physical damage. Regular checks on the device for visible damages or faults will ensure that it functions optimally in various testing scenarios.
CABLEMAX Serial Adapters DB9-TERS Editorial Review
The Cablemax RS-232 LED link Tester is a useful tool for identifying communication issues with RS-232 connections. It is easy to use and can quickly determine if the rx/tx is communicating. The LED lights indicate signal levels and are a helpful visual aid. However, some users may find it difficult to see state changes in the diodes. Overall, this is a well-made tool that is compatible with various USB-RS232 adapters and can greatly assist in testing and troubleshooting RS232 connections.
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Pros
- Quickly identifies communication issues
- Easy to use
- Compatible with USB-RS232 adapters
- Useful visual aid with LED lights
Cons
- Difficult to see state changes in the diodes
Platform Trust & Buyer Confidence
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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23-Jul-26 · via Trustpilot
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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LAK 772571
Order now and get it around Monday, August 24
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Features & Benefits
- Standard RS-232 DTE & DCE Interface with DB-9 / F & DB-9 / M Connectors.
- RS-232 DB-9 / DB25 Pin assignment No Power required.
- Easy to install, Plug & Play.
- Works with Windows 7, 8, 10, Linux, Mac OS X.
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