Customer service unit

In telecommunication, a customer service unit (CSU) is a device that provides an accessing arrangement at a user location to either switched or point-to-point, data-conditioned circuits at a specifically established data signaling rate.

A CSU provides local loop equalization, transient protection, isolation, and central office loop-back testing capability.

References

 This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C".


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.