Nortel Circuit Card 311 Reference page 52

52 Overview
LAN link. This link is composed of two asynchronous serial buses (called
the Async card LAN link in
(page
data to the trunk card.The input bus is used by the controller for input of
trunk card status data.
Figure 13
Network connections to IPE modules
A card LAN link bus is common to all of the line/trunk card slots within an
IPE module (or IPE section of a CE module). This bus is arranged in a
master/slave configuration where the controller card is the master and all
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.
49)). The output bus is used by the controller for output of control
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Figure 11 "Typical IPE trunk card architecture"