Nortel Networks Circuit Card 311 - Manual (Page 177)

Functional description 177
Figure 30
Lineside T1 card - block diagram
The NT5D14AA provides the following features and functions:
• Card interfaces
• T1 interface circuit
• Signaling and control
• Card control functions
• Microcontroller
• Card LAN interface
• Sanity Timer
• Man-Machine Interface (MMI)
Figure 32 "Lineside T1 card - T1 protocol dip switch locations" (page
191)
shows a block diagram of the major functions contained on the Lineside
T1 card. Each of these functions is described on the following pages.
The Lineside T1 card is an IPE line card that provides a cost-effective
all-digital connection between T1-compatible terminal equipment (such
as voice mail systems, voice response units, and trading turrets) and
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
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.