Making external connections

Tripp Lite USB to Serial Adapter User’s Manual

Figure 39 illustrates the RS- 232C pinouts for typical DTE- to-DCE and DTE-to-DTE (null modem) cables with 25-pin connectors.

Figure 39 - Cabling requirements for RS-232C devices

Testing DB-9 serial ports in HyperTerminal

This section explains how to test the functionality of your USB serial adapter using Hyperterminal. Follow the directions under Running Hyperterminal below.

Running Hyperterminal

Note: Use the DB-9 loopback connector that shipped with your USB to Serial Adapter.

This procedure explains how to troubleshoot RS-232 DB-9 serial ports using Hyperterminal.

Before testing your serial ports, you must first hook up a loopback. A loopback connects the output signal (TxD) to the input signal (RxD) in a single serial port connector to make it seem like there are two ports connected together.

A loopback connector shipped with your USB adapter. Use it to test each individual serial port in Hyperterminal.

Step

Procedure

Description

!

Step 1

Launch HyperTerminal.

In Windows, select Programs/

 

 

 

Accessories/ Communications/

 

 

 

HyperTerminal.

 

 

 

 

!

Step 2

Connect the loopback connector to the

You will need to test each port

 

 

port you wish to test.

individually.

!

Step 3

Create a new session.

When prompted, give the session any

 

 

 

name you wish.

!Step 4 Select the COM # associated with the port you are testing from the drop down list.

You are now set up to test that serial port.

Note: Leave all settings at default.

!Step 5 With the session open, type any text.

If the text you type is echoed on the screen, the port is functioning properly.

!Step 6 Close the session.

!Step 7 Repeat steps 2 through 6 for each serial port in turn.

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Tripp Lite U209-004 user manual Testing DB-9 serial ports in HyperTerminal, Running Hyperterminal
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U209-004 specifications

The Tripp Lite U209-004 is an innovative USB hub designed to enhance connectivity for various devices while ensuring optimal performance. This compact and efficient device grants users the ability to expand their USB connection options effortlessly. With four USB 2.0 ports, the U209-004 accommodates multiple devices, allowing users to connect a variety of peripherals simultaneously, including keyboards, mice, printers, and external storage solutions.

One of the standout features of the U209-004 is its plug-and-play capability, which means that users can set it up without the need for additional drivers or complicated installation processes. Simply connecting it to a USB port on a computer or laptop instantly provides additional connectivity options. This ease of use makes it an ideal solution for both tech-savvy individuals and those who prefer straightforward setups.

The design of the Tripp Lite U209-004 is both compact and portable, making it perfect for on-the-go use. Whether at home, in the office, or while traveling, users can easily pack this lightweight hub without taking up significant space. Built from durable materials, it promises reliability and longevity, ensuring that it can withstand regular usage and transport.

In terms of technology, the U209-004 supports data transfer speeds of up to 480 Mbps, which is sufficient for most everyday applications such as transferring files or syncing devices. It also maintains backward compatibility with USB 1.1 devices, ensuring that older peripherals can still be utilized without compromising performance.

Furthermore, the Tripp Lite U209-004 incorporates built-in overcurrent protection for each port, safeguarding connected devices against power surges and potential damage. This feature enhances its utility and contributes to the overall reliability of the hub, making it a safe choice for users who connect a variety of devices.

Overall, the Tripp Lite U209-004 combines functionality, reliability, and portability, making it an excellent addition to any office setup or personal device collection. Its ability to expand connectivity options and its user-friendly design are significant benefits, catering to the needs of diverse users in today's tech-driven world. Whether enhancing productivity at work or supporting leisure activities at home, the Tripp Lite U209-004 proves to be a valuable asset.
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