pxb4219 Infineon Technologies Corporation, pxb4219 Datasheet - Page 21
pxb4219
Manufacturer Part Number
pxb4219
Description
Iwe8 Interworking Element For 8 E1/t1 Lines
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PXB4219.pdf
(290 pages)
- Current page: 21 of 290
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1.3
Figure 2
Interface Cards (LICs) or Network Interface Controllers (NICs).
Application 1 utilizes the IWE8 as an internetworking device for communication between
a narrowband Time-Slot based network and an ATM network.
Application 2 utilizes the IWE8 chip to enable the use of an existing T1/E1 access line
for connection to an ATM network.
In application 3, the IWE8 chip enables terminals using a Leased Line or Time-Slot
based service to convert from T1/E1 network connection to ATM network connection
without noticeable changes to the subscriber.
Figure 2
The PXB 4220 IWE8 chip is designed to handle up to eight T1/E1 ports. It transfers data
between the Pulse Code Modulation (PCM)-highway and an UTOPIA ATM Interface.
Data Sheet
Application 3
Application 1
Application 2
Multiservice
Switch
PBX
PBX
illustrates three typical application areas which utilize the IWE8 chip in Line
Typical Applications
Typical IWE8 Applications
PBX
PBX
IWE
TM
8
DS1/E1 Links
0
7
DS1/E1 Links
DS1/E1 Links
DS1/E1 Links
NNI/UNI 2.048 Mbps,
NNI/UNI 1.544 Mbps
(I.432.2, G.804)
21
0
7
0
7
IWE
IWE
PXB4219 / PXB4220 / PXB4221
TM
TM
8
8
Structured Circuit Emulation
Service for DS1/E1
(Nx64kbit/s with/without
partially filled cells) over ATM
Unstructured Circuit Emulation
Service for DS1/E1 (with/
without partially filled cells) for
Leased Lines over ATM
ATM Links
ATM Links
Network
ATM
2002-05-06
Overview
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