314 NT5D33 and NT5D34 Lineside E1 Interface cardsFigure 80MMI Network loopback testApplicationsThe LEI is an IPE line card that provides cost-effective connection betweenE1-compatible IPE and a CS 1000E, CS 1000M, and Meridian 1 system oroff-premise extensions over long distances.Some examples of applications where an LEI can be interfaced to an E1link are:• E1-compatible VRU equipment• E1-compatible turret systems• E1-compatible wireless systems• Remote analog (500/2500-type) telephones through E1 to channel bank• Remote Norstar sites behind CS 1000E, CS 1000M, and Meridian 1over E1The LEI is appropriate for any application where both E1 connectivityand "lineside" functionality are required. This includes connections toE1-compatible voice response units, voice messaging and trading turret(used in stock market applications) systems. See Figure 81 "LEI connectionto IPE" (page 315).Nortel Communication Server 1000Circuit Card ReferenceNN43001-311 01.04 StandardRelease 5.0 23 May 2008Copyright © 2003-2008, Nortel Networks.
