615948

Ideal Networks LanTEK III Manual

67
Zoom out
Zoom in
Previous page
1/110
Next page
Chapter 6
Structured cabling testing
66
6.14.1. Delay and Skew Test Error
The delay and skew measurements usually result in slightly different values for the individual
wire pairs of a cable. However, a large difference indicates a cable fault or a damaged wire
pair.
6.15. Capacitance Test
This test determines the mutual capacitance between the two conductors of each wire pair, to
ensure that the capacitance of the corresponding cable type has not been impaired by the
installation.
The capacitance test of the analysis mode indicates the overall capacitance in Nanofarad
(nF).
The Autotest measures the overall capacitance in Picofarad (pF) per meter or foot.
Illustration 6.15. Capacitance Test
6.15.1. Capacitance Test Error
The higher the capacitance, the higher the error rate. Due to transport and installation of the
cable, minor changes in capacitance are normal. Connectors and patch cords also influence
capacitance values.
6.16. ACR-N (ACR) Test and Power Sum ACR-N (Power Sum ACR) Test
The ACR-N (ACR) test determines the loss-crosstalk distance by means of a mathematical
comparison (difference calculation) of the loss and NEXT test results. The differences between
the measuring values of a wire pair indicate whether transmission interferences are likely to
occur in the respective wire pair.
The ACR-N (ACR) measurement is calculated from pair to pair. Power Sum ACR-N (Power
Sum ACR) measurement is calculated by summation of NEXT values between a selected wire
pair and three other wire pairs of the same cable.
… 67 …


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Ideal Networks LanTEK III at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Ideal Networks LanTEK III in the language / languages: English as an attachment in your email.

The manual is 3,02 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info