PXB4221EV34NP Lantiq, PXB4221EV34NP Datasheet - Page 283

• Manufacturer Part Number: PXB4221EV34NP
• Manufacturer: Lantiq

Specifications of PXB4221EV34NP

• Data Rate: 2.048Mbps
• Number Of Channels: 1
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

cells the CAS bits may also be transmitted in the payload section. However, only the
signalling bits of the CAS substructure are relevant.
Table 55
DS1 Multiframe
Frame 1 (CasBeginFrame) - Frame 5 1-8
Frame 6
Frame 7 - Frame 11
Frame 12
Frame 13 - Frame 17
Frame 18
Frame 19 - Frame 23
Frame 24
Figure 79
Data Sheet
A TM S D U
Allocation of CAS Bits to 24 Frame Multiframe
Example Multiframe Structure for 1x64 kbit/s DS1 with CAS
A B C D ts x
A A L s tru ctu re po inte r = 0
A A L1 h ead er oc tet
tim es lot x
tim es lot x
tim es lot x
tim es lot x
tim es lot x
tim es lot x
tim es lot x
tim es lot x
tim es lot x
tim es lot x
tim es lot x
tim es lot x
Digit time slot in each
channel used for
Characters Signalling
1-7
1-8
1-7
1-8
1-7
1-8
1-7
283
u nus ed =0 00 0
PXB 4219E, PXB 4220E, PXB 4221E
Example Multiframe Structure for 1x64 kbps DS1 with C
-
8
-
8
-
8
-
8
22 th fra m e
23 th fra m e
24 th fra m e
19 th fra m e
20 th fra m e
2 1st fra m e
2nd fram e
2nd fram e
3 rd fra m e
sig na lling
3 rd fra m e
1 st fra m e
1 st fra m e
Signalling channel
identifier
333
bit/s
-
A
-
B
-
C
-
D
667
bit/s
-
A
-
B
-
A
-
B
IWE8, V3.4
fram e
fram e
m ulti-
m ulti-
2n d
1st
Appendix
2003-01-20
1333
bit/s
-
A
-
A
-
A
-
A