Nortel Networks Circuit Card - Manual (Page 310)

Page 310 of 906 NT5D33 and NT5D34 Lineside E1 Interface cards
553-3001-211 Standard 3.00 August 2005
Applications
The LEI is an IPE line card that provides cost-effective connection between
E1-compatible IPE and a CS 1000S, CS 1000M, and Meridian 1 system or
off-premise extensions over long distances.
Some examples of applications where an LEI can be interfaced to an E1 link
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 1000S, CS 1000M, and Meridian 1 over
E1
The LEI is appropriate for any application where both E1 connectivity and
“lineside” functionality are required. This includes connections to
E1-compatible voice response units, voice messaging and trading turret (used
in stock market applications) systems. See Figure 62.
Figure 62
LEI connection to IPE
For example, the LEI can be used to connect the system to an E1-compatible
Voice Response Unit (VRU). An example of this type of equipment is Nortel
Open IVR system. In this way, the CS 1000S, CS 1000M, and Meridian 1 can