PXB4220E Infineon Technologies AG, PXB4220E Datasheet - Page 283

• Manufacturer Part Number: PXB4220E
• Description: Interworking Element for 8 E1/T1 Lines
• Manufacturer: Infineon Technologies AG

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