pef20550 Infineon Technologies Corporation, pef20550 Datasheet - Page 25
pef20550
Manufacturer Part Number
pef20550
Description
Extended Line Card Interface Controller Elic
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEF20550.pdf
(407 pages)
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1.6
The main application fields of the ELIC are:
1.6.1
1.6.1.1 Switching, Layer-1 Control, Group Controller Signaling
The ELIC performs a switching capability for up to 32 digital subscribers between the
PCM- system highway and the IOM-2 interface (64 B-channels). Typically it switches
64-kbit/s channels between the PCM and the IOM-interfaces. Moreover it is able to
handle also 16-, 32- and 128-kbit/s channels.
The signaling handler supports the command/indication (C/I) channel which is used to
exchange predefined layer-1 information with the transceiver device.
A monitor handler supports the handshake protocol defined on the IOM-monitor channel.
It allows programming of layer-1 devices which do not have a dedicated P interface.
The communication between the line card and the group controller is performed by one
of the SACCO-channels. Its auto-mode is optimized for this application and implements
a slave station behaviour in normal response mode. The auto-mode is compatible with
the PBC (PEB 2050) but due to the large FIFO-size the response time requirements
compared to the PBC are reduced drastically.
The data exchange between the line card and the group controller board can take place
on a separate signalling highway or on the PCM-highway (due to the time slot capability
of the SACCO) (see figure 5).
Semiconductor Group
– Digital line cards, different architectures are supported,
– Central control units of key systems,
– Analog line cards,
– DECT line cards.
System Integration and Application
Digital Line Card
25
PEB 20550
PEF 20550
Overview
01.96
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