PXB4219E Datasheet, PDF (15/290 Pages) Infineon Technologies AG – Interworking Element for 8 E1/T1 Lines

Interworking Element for
8 E1/T1 Lines
IWE8
PXB 4219E, PXB
4220E, PXB 4221E
Version 3.4
1.1
Features
• Full duplex ATM Packetizer/Depacketizer for 8 E1/T1
highways
• Configurable to T1 or E1 mode via external pin
• 8 T1/E1 ports configurable independently to ATM or
AAL Mode
• ATM Mode (PXB 4219/4220/4221):
P-BGA-256-2
– ATM cell mapping into PDH according to ITU-
T G.804 [26]
– B-ISDN User-Network interface - Physical Layer
according to ITU-T I.432 [32]
– B-ISDN User-Network interface - Physical Layer operation at 1544 KBit/s and 2048
KBit/s according to ITU-T I.432.3 [34]
• AAL Mode (PXB 4220/4221):
– AAL1 according to ITU-T I.363.1 [31] or transparent without any adaptation layer
overhead (AAL0)
– T1/E1 unstructured service according to ATM Forum af-vtoa-0078.000 [10] section
3
– Structured T1/E1 N x 64 kbit/s service according to [10] section 2 with M channels
of N x 64 kbit/s (M,N = 1to 24 for T1) (M,N = 1to 32 for E1)
– Channel Associated Signalling (CAS) support according to [10]
– Echo Canceller Mode
– Partially filled cells with programmable filling thresholds
– Selectable Sequence Count Algorithm:
– Robust/Fast according to ITU-T I.363.1 [30]
– According to ETSI (prl-ETS 300353 annex D) [17]
– Fast: Saves 6 ms during reassembly for 1 x 64 kbit/s connection
– AAL0 option: 48 Bytes user payload per ATM Cell, without AAL overhead
– Reassembly buffer can compensate up to +/- 4 ms Cell Delay Variation (CDV)
– Statistics counters per channel for lost/misinserted/errored cells etc.
Type
PXB 4219E, PXB 4220E, PXB 4221E
Data Sheet
Package
P-BGA-256
15
2003-01-20