Talk:CSU/DSU

	Telecommunication portal This article is within the scope of WikiProject Telecommunications, a collaborative effort to improve the coverage of Telecommunications on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.TelecommunicationsWikipedia:WikiProject TelecommunicationsTemplate:WikiProject TelecommunicationsTelecommunications articles
Low	This article has been rated as Low-importance on the project's importance scale.

I am used to calling CSU/DSU unit DTU(Data Termination Unit) mainly because most of the other people I work with call it the same. The initials are not however common in the literature. Is there anybody who can explain the origin of DTU and if its accurate to use it on CSU/DSU? See google search for the said item [1]

This would cause confusion. A DTU - Data Terminal Unit, sounds to much like Data Terminal Equipment (DTE) which is the terminal (ie. PC or dump terminal box) at the end of a communiction link. Notice the DTR (Data Terminal Ready) LED on modems. A DTE connects to a DCE (Data Computer Equipment). The link may or may not utilize DSU/CSUs.

The section:

"It converts a digital data frame from a local area network (LAN) into a frame appropriate to a wide-area network (WAN) and vice versa."

This section is poorly worded. A CSU/DSU doesn't converts frames arriving on the WAN link. It accepts data from the network (telco) interface and provides one or more synchronous serial interfaces. CSU/DSU's never do frame delination. Those interfaces can then be connected to a router which does level two processing of protocols. The router can then route packets from the local network.

--Boren 20:51, 12 October 2006 (UTC)[reply]

Contents of this article are partially same with this URL: http://www.alliancedatacom.com/technologies/Csu-DSU/Csudsu.Asp don't know who has copyright? someone please double check that! Lielei 21:05, 6 November 2006 (UTC)[reply]

Copyright trouble and inaccuracies[edit]

Yes - the third, fourth and fifth paragraphs are nearly verbatim from that link. They also have factual shortcomings and fail to use a link to the useful Channel Service Unit entry.

I've deleted the copyrighted text and have straightened out the functional description, but rightfully the DSU description should be relocated.

Flagmichael 02:19, 29 March 2007 (UTC)[reply]

Relocation of the individual CSU and DSU information[edit]

I took the liberty of moving the description of CSU and of DSU operation to their respective locations. Flagmichael 13:39, 7 April 2007 (UTC)[reply]

Flagmichael (talk) 04:02, 19 May 2008 (UTC)== CSU/DSU ==[reply]

I think that CSU and DSU should have their own pages, but should also have a CSU/DSU page to accurately describe the piece of equipment that is used commonly with a T1.
I myself am not an expert in this field, but I am responsible for ours at my office. All I know is that if we have a problem with our IP phones, then I reset our CSU/DSU. It would be helpful to me to understand this a little better.
If there is anyone out there that can give an accurate understandable explaination of a CSU/DSU please do. Jason M —Preceding unsigned comment added by Jason1M (talk • contribs) 00:17, 25 March 2008 (UTC)[reply]

Why not just follow the links to the existing articles? At most, we can make three separate paragraphs here for 1) CSU, 2) DSU, and 3) DSU/DSU unless someone wants to summarize the separate articles with few paragraphs each, thus calling for sections. Jim.henderson (talk) 15:23, 30 March 2008 (UTC)[reply]

I agree. A CSU/DSU truly is a single device that contains the separate functions of a CSU and a DSU; going much farther than that is beyond the scope of an encyclopedia. --Flagmichael (talk) 04:02, 19 May 2008 (UTC)[reply]

I have continued this thought and significantly condensed this article, moving a little "new" information to the CSU page. Much of what I deleted was erroneous or repetitive within this article. I tried to make this article "complete" at a very high level, leaving the details for the separate articles. I think they need work too but that's for another day.Bellhead (talk) 22:57, 12 November 2008 (UTC)[reply]