This is an old revision of this page, as edited by CorenSearchBot (talk | contribs) at 23:38, 17 November 2009 (Tagging possible copyvio of http://electronics.ihs.com/news/nema-optical-modem.htm?wbc_purpose=Ba&WBCMODE=P). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Revision as of 23:38, 17 November 2009 by CorenSearchBot (talk | contribs) (Tagging possible copyvio of http://electronics.ihs.com/news/nema-optical-modem.htm?wbc_purpose=Ba&WBCMODE=P)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)The CorenSearchBot has performed a web search with the contents of this page, and it appears to include material copied directly from:
It will soon be reviewed to determine if there are any copyright issues. The content should not be mirrored or otherwise reused until the issue has been resolved. If substantial content is duplicated, unless evidence is provided to the contrary (e.g. evidence of permission to use this content under terms consistent with the Wikimedia Terms of Use or public domain status; see Misplaced Pages:Donating copyrighted materials), editors will assume that this text is a copyright violation, and will soon delete the copy.
Before removing this notice, you should:
|
ANSI C12.21 is the American National Standard for Protocol Specification for Telephone Modem Communication
This standard details the criteria required for communications between a C12.21 device and a C12.21 client via a modem connected to the switched telephone network. The C12.21 client could be a laptop or portable computer, a master station system or another electronic communications device.