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MC3 PCI Card
Guide
1
Introduction
1.1
General
This document is the instructions for use for the Aculab MC3 PCI card :
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Section 1 of this document provides a general description of the MC3 PCI card, and its
features and facilities.
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Section 2 refers to installation of the MC3 PCI card into a host computer, and subsequent
connection to the network.
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Section 3 references the installation and configuration of the MC3 PCI card device driver
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Section 4 provides some background technical information.
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Section 5 details the conditions and the requirements for installation and safety, and other
regulatory matters. This section and the country-specific appendix contain many statements
regarding use of the MC3 PCI card that are legal requirements. Failure to use the MC3 PCI
card in accordance with any of these instructions for use may invalidate the approval.
Section 6 provides country-specific information related to the other sections of this
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document. To fully appreciate the conditions of approval for connection to the telephone
network, it is important that the country-specific appendix is read in conjunction with the
other sections of this document.
Note
These instructions assume that these various elements are being assembled and integrated by someone competent in such matters.
Please contact Aculab if you are uncertain about any of the procedures detailed in this guide.
1.1.1
Target Application for the MC3 PCI card
The MC3 ring network concept provides a solution to the problem of synchronous
interconnection between a number of separate H.100 hosts.
An MC3 ring provides a total user bandwidth of 4846 timeslots of 64kbit/s each.
The Aculab MC3 PCI card provides a complete interface to an MC3 ring network for an H.100
host. At least two MC3 cards are needed to create a 'ring' with one card in each chassis that
needs to be interconnected.
The MC3 PCI card has a maximum switched capacity between H.100 and MC3 of 2048
timeslots of 64kbit/s each, or 1024 simultaneous bi-directional voice channels.
The MC3 PCI card includes the following features :
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MC3 port comprising two bi-directional fibre optic 155.52 Mbit/s serial interfaces.
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H.100 port.
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a high capacity digital switch to make connections in both directions between H.100 and
MC3 and between H.100 and H.100.
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a drop, insert and bypass digital switch to maintain ring integrity on MC3.
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full support for master clocking and slave clocking at both MC3 and H.100 including H.100
clock fallback.
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Bit Error Rate tester circuit.
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5Vdc power outlet connector for power feeding to optical bypass relay (340mA
continuous).
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32-bit 33MHz PCI interface.
An MC3 ring is built by connecting the nodes of the ring according to a dual contra-rotating
topology. At the logical level, there is a single MC3 ring network. At the physical level, there are
two separate rings, each of which is implemented using SONET/SDH optical fibre technology.
The term "contra-rotating" means that traffic on one physical ring circulates in the opposite
direction to traffic on the other physical ring.
The presence of 2 physical rings allows for the MC3 ring network to be reconfigured in order to
maintain service in the event of node failure. Aculab refers to this capability as "self-healing".
The idea is that the failed node (or group of failed nodes) is isolated on one physical ring while
the remaining good nodes continue to be interconnected over the other physical ring.
Note
The maximum capacity between H.100 and MC3 of 2048 timeslots is available even when MC3 PCI is operated in self-healing mode.
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