PEF24901HV22XT Lantiq, PEF24901HV22XT Datasheet - Page 33

• Manufacturer Part Number: PEF24901HV22XT
• Manufacturer: Lantiq

Specifications of PEF24901HV22XT

• Control Interface: HDLC
• Lead Free Status / Rohs Status: Compliant

Within one FSC-period, 128 to 512-bit are transmitted, corresponding to DCL-
frequencies ranging from 2048 kHz up to 8192 kHz. The following table shows possible
operating frequencies of the IOM
Table 4
DCL Frequency
[kHz]
2048
3072
4096
6144
8192
3.2.1
The typical IOM
nominal bit rate of 2048 kbit/s. Therefore eight channels are available, each consisting
of the basic frame with a nominal data rate of 256 kbit/s. The downstream data (DD) is
transferred on signal DIN, the upstream data (DU) on signal DOUT. The IOM
assignment is programmable by pin strapping (SLOT1,0).
The basic IOM
• Two 64-kbit/s channels B1 and B2
• The monitor channel for transferring maintenance information between layer-1 and
• Two bits for the 16-kbit/s D-channel
• Four command / indication (C/I) bits for controlling of layer-1 functions (activation/
• Two bits MR and MX for handling the monitor channel
Data Sheet
channel
bits
layer-2 devices
deactivation and additional control functions) by the layer-2 controller
IOM
B1
8
IOM
®
®
-2 frame and clocking structure consists of:
®
-2 line card application comprises a DCL-frequency of 4096 kHz with a
-2 Interface Frame Structure
®
-2 Data Rates
B2
8
Monitor
8
Data Rate
[kBit/s]
1024
1536
2048
3072
4096
®
-2-interface.
34
D
2
Command / Indicate
4
IOM
4
6
8
12
16
Functional Description
®
-2 Channels
MR
1
PEF 24901
®
-2 channel
2002-09-30
DFE-T
MX
1