PEB20571FV31XP Infineon Technologies, PEB20571FV31XP Datasheet - Page 88

• Manufacturer Part Number: PEB20571FV31XP
• Manufacturer: Infineon Technologies

Specifications of PEB20571FV31XP

• Lead Free Status / Rohs Status: Compliant

4.2
4.2.1
• The TRANSIU controls up to 24 layer-1 channels via up to three VIP/ VIP8 connected
• IOM-2000 interface: all channels may be programmed in the IOM-2000 to:
Note: The number of S/T interfaces in VIP PEB 20590 is limited to 4. Therefore it is
• Clock rates: 3.072 Mbit/s (1 VIP), 6.144 Mbit/s (2 VIPs) or 12.288 Mbit/s (3 VIPs)
• Data and maintenance bit handling for S/T and U
Scrambling / Descrambling (in DELIC)
The B-channel data on the Up interface is scrambled in order to ensure that the receiver
at the subscriber terminal gets enough pulses for a reliable clock extraction (flat
continuous power density spectrum is provided), and to avoid periodic patterns on the
line.
A descrambler is implemented in the opposite direction to extract the received Up data.
The scrambling is done according to ITU V.27, OCTAT-P and DASL.
4.2.2
Channel Programming
Each IOM-2000 channel may be configured in the TRANSIU as:
• U
• S/T channel in LT-S mode
• S/T channel in LT-T mode
Data Rate Programming
The IOM-2000 supports three configurations regarding the number of VIPs connected
via IOM-2000:
• One VIP connected at data rate of 3.072 Mbit/s: 8 IOM-2000 channels at a clock rate
• Two VIPs connected at data rate of 6.144 Mbit/s: 16 IOM-2000 channels at a clock
Data Sheet
to IOM-2000 interface
control and D-channel collision control.
of 3.072 MHz (for LT-T mode please refer to
rate of 6.144 MHz
PN
–U
–S/T interface in LT-S (subscriber master) or LT-T (trunk slave) mode
required to program the IOM-2000 correctly to the required mode (refer to
Table
mode
PN
interface
IOM-2000 Transceiver Unit (TRANSIU)
IOM-2000 Features
IOM-2000 Initialization
49)
71
Page
PN
62)
interface, including multiframe
Functional Description
PEB 20570
PEB 20571
2003-07-31