Nortel-networks Circuit Card Manual de usuario Pagina 63

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Overview Page 63 of 906
Circuit Card Description and Installation
Operation
This section describes how trunk cards fit into the CS 1000S, CS 1000M, and
Meridian 1 architecture, the buses that carry signals to and from the trunk
cards, and how they connect to terminal equipment. See Table 8 for IPE
parameters.
Host interface bus
Cards based on the IPE bus have a built-in microcontroller. The IPE
microcontroller is used for the following:
to perform local diagnostics (self-test)
to configure the card according to instructions issued by the system
processor
to report back to the system processor information such as card
identification (type, vintage, and serial number), firmware version, and
programmed configuration status.
Intelligent Peripheral Equipment
IPE trunk cards all have a similar architecture. Figure 11 on page 64 shows a
typical IPE trunk card architecture. The various trunk cards differ only in the
number and types of trunk interface units.
Table 8
Differences between IPE parameters
Parameter IPE
Card Dimensions 31.75 x 25.4 x 2.2 cm. (12.5 x10.0 x 0.875 in.)
Network Interface DS-30X Loops
Communication Interface card LAN Link
Microcontroller 8031
Peripheral Interface card NT8D01 Controller card
Network Interface card NT8D04 Superloop Network card
Modules NT8D37 IPE module
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