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Can someone explain in detail BLUE or alarm indication signal (AIS) in E1 or T1? Saravanakarthi 09-January-2008 12:09:19 PMComments I think in short BLUE: alarm indication signal (AIS): The AIS (alarm indication signal) is used to indicate loss of layer 1 capability in the ET-to-TE direction on the network side of the user-network interface. A characteristic of AIS is that its presence indicates that the timing provided to the TE may not be the network clock. AIS is non-framed and coded as all binary ONEs Posted by HamidAliKhan Yes AIS basically indicates the User-Network. Posted by waqqas1 AIS basically indicates the User-Network interface loss in ET-to-TE direction on network. Posted by sagitraz BLUE: alarm indication signal (AIS): The AIS (alarm indication signal) is used to indicate loss of layer 1 capability in the ET-to-TE direction on the network side of the user-network interface. A characteristic of AIS is that its presence indicates that the timing provided to the TE may not be the network clock. AIS is non-framed and coded as all binary ONEs Posted by vance |
Posted: 09-January-2008 12:26:30 PM By: vance BLUE: alarm indication signal (AIS): The AIS (alarm indication signal) is used to indicate loss of layer 1 capability in the ET-to-TE direction on the network side of the user-network interface. A characteristic of AIS is that its presence indicates that the timing provided to the TE may not be the network clock. AIS is non-framed and coded as all binary ONEs | |
Posted: 29-December-2008 12:30:54 PM By: sagitraz AIS basically indicates the User-Network interface loss in ET-to-TE direction on network. | |
Posted: 31-December-2008 08:08:47 AM By: waqqas1 Yes AIS basically indicates the User-Network. | |
Posted: 30-January-2009 12:49:06 AM By: HamidAliKhan I think in short BLUE: alarm indication signal (AIS): The AIS (alarm indication signal) is used to indicate loss of layer 1 capability in the ET-to-TE direction on the network side of the user-network interface. A characteristic of AIS is that its presence indicates that the timing provided to the TE may not be the network clock. AIS is non-framed and coded as all binary ONEs |