Nortel Networks 553-3001-211 manual Applications, MMI network loopback test

Page 232 of 894 NT5D11 and NT5D14 Lineside T1 Interface cards

in tandem. Figure 33 demonstrates how the signaling is looped back toward the CPE equipment.

Figure 33

MMI network loopback test

System
Common	Line side		External		Customer
	T-1	T-1 link		T-1 link	premise
Equipment	interface		network		equipment
	card				(CPE)
					553-AAA1122
Applications

The lineside T1 interface is an IPE line card that provides cost-effective connection between T1-compatible IPE and a system or off-premise extensions over long distances.

Some examples of applications where a lineside T1 card can be interfaced to a T1 link are:

•T1 compatible Voice Response Unit (VRU) equipment

•T1 compatible turret systems

•T1 compatible wireless systems

•Remote analog (500/2500-type) telephones through T1 to a channel bank

•Remote Norstar sites behind CS 1000S, CS 1000M, and Meridian 1 over T1

The lineside T1 card is appropriate for any application where both T1 connectivity and “lineside” functionality is required. This includes connections to T1-compatible voice response units, voice messaging and trading turret (used in stock market applications) systems. See Figure 34.

553-3001-211 Standard 2.00 September 2004