PEF2054NV21XK Infineon Technologies, PEF2054NV21XK Datasheet - Page 34

• Manufacturer Part Number: PEF2054NV21XK
• Manufacturer: Infineon Technologies

Specifications of PEF2054NV21XK

• Lead Free Status / Rohs Status: Compliant

The EPIC is principally an intelligent switch of PCM data between two serial interfaces,
the system interface (PCM interface) and the configurable interface (CFI). Up to 128
channels per direction can be switched dynamically between the CFI and the PCM-
interfaces. The EPIC performs non-blocking space and time switching for these
channels which may have a bandwidth of 16, 32, 64 or 128 kbit/s.
Both interfaces can be programmed to operate at different data rates of up to
8.192 Mbit/s. The PCM interface consists of up to four duplex ports with a tristate control
signal for each output line. The configurable interface can be selected to provide either
four duplex ports or 8 bi-directional (I/O) ports (EPIC-S: two duplex or 4 bi-directional
ports).
The configurable interface incorporates a control block (layer-1 buffer) which allows the
(Subscriber Line Data) interface. The EPIC can handle the layer-1 functions buffering
the C/I and monitor channels for IOM compatible devices and the feature control and
signaling channels for SLD compatible devices. One major application of the EPIC is
therefore as line card controller on digital and analog line cards. The layer-1 and codec
devices are connected to the CFI, which is then configured to operate as IOM-2, SLD or
multiplexed IOM-1 interface.
The configurable interface of the EPIC can also be configured as plain PCM-interface
i.e. without IOM- or SLD-frame structure. Since it’s possible to operate the two serial
interfaces at different data rates, the EPIC can then be used to adapt two different PCM
systems.
The EPIC-1 can handle up to 32 ISDN-subscribers with their 2B + D channel structure
or up to 64 analog subscribers with their 1B channel structure in IOM-configuration. In
SLD- configuration up to 16 analog subscribers can be accommodated.
The EPIC-S can handle up to 16 ISDN-subscribers with their 2B + D channel structure
or up to 32 analog subscribers with their 1B channel structure in IOM-configuration. In
SLD- configuration up to 8 analog subscribers can be accommodated.
The system interface is used for the connection to a PCM backplane. On a typical digital
line card, the EPIC switches the ISDN B channels and, if required, also the D channels
to the PCM backplane. Due to its capability to dynamically switch the 16-kbit/s
D channel, the EPIC is one of the fundamental building blocks for networks with either
central, decentral or mixed signaling and packet data handling architecture.
3.4
Semiconductor Group
P to gain access to the control channels of an IOM (ISDN-Oriented Modular) or SLD
EPIC
®
Operation
34
Operational Description
PEB 2055
PEF 2055