Common-network interface ring
Nigrito (talk) 00:35, 21 January 2019 (UTC)! Nigrito (talk) 00:35, 21 January 2019 (UTC)@ Nigrito (talk) 00:35, 21 January 2019 (UTC)# Nigrito (talk) 00:35, 21 January 2019 (UTC)$ Nigrito (talk) 00:35, 21 January 2019 (UTC)% Nigrito (talk) 00:35, 21 January 2019 (UTC)^ Nigrito (talk) 00:35, 21 January 2019 (UTC)& Nigrito (talk) 00:35, 21 January 2019 (UTC)* Nigrito (talk) 00:35, 21 January 2019 (UTC)( Nigrito (talk) 00:35, 21 January 2019 (UTC)) The common-network interface ring (CNI ring) provides common-channel signaling (CCS) functionality on several Alcatel-Lucent SS7 products. It was introduced by Western Electric in the early 1980s but is still used today in all 1AESS and 4ESS,[1] offices, and most of the wireline 5ESS offices.[2]
It was designed and manufactured at the combined Bell Labs–WECo location in Columbus, Ohio.
References
- ^ US Patent 5592466 – Network interconnect backup Archived 2011-06-12 at the Wayback Machine
- ^ "Common channel signaling in the AT&T US 5ESS switch" Brown, R.B., Jr.; Holmes, C.V.; Lanoux, M.D.; Marciani, T.P. Proceedings of the IEEE, Volume 80, Issue 4, Apr 1992, pp. 618–627