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| 型號： | T8100 |
| 英文描述： | H.100/H.110 Interface and Time-Slot Interchanger |
| 中文描述： | H.100/H.110接口和時(shí)隙交換器 |
| 文件頁數(shù)： | 24/92頁 |
| 文件大小： | 1450K |
| 代理商： | T8100 |
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22
Lucent Technologies Inc.
Preliminary Data Sheet
August 1998
H.100/H.110 Interface and Time-Slot Interchanger
Ambassador T8100
2 Architecture and Functional Description
(continued)
2.2 Local Bus Section
(continued)
2.2.1 Constant Frame Delay and Minimum Delay Connections
The local bus section contains the local connection memory and the double-buffered local data memory. Collec-
tively, the connection memory and data memory are referred to as local memory since it is used for implementing
local-to-local switching only. Operation is similar to other time-slot interchangers. Data is written into the memory in
a fixed order and then read out according to the indirect addresses held in the connection memory. If any of the
connections on the T8100 are operating in constant frame delay (also called constant delay) mode, then the output
data is accessed from a second block of data memory. The input data will not be output until the next frame bound-
ary has been crossed and the memory blocks have swapped functions. Figure 5 shows an example of a set of con-
nections which create the delay types referred to as minimum delay and constant delay.
5-6103F
Figure 5. Local Bus Memory Connection Modes
FRAME N DATA
DATA BLOCK 0
0
1
2
3
1020
1021
1022
1023
WRITE N
READ N
MINIMUM DELAY
CONNECTION
FRAME N – 1 DATA
DATA BLOCK 1
0
1
2
3
1020
1021
1022
1023
READ N – 1
CONSTANT DELAY
CONNECTION
FRAME N DATA
DATA BLOCK 0
0
1
2
3
1020
1021
1022
1023
READ N
CONSTANT DELAY
CONNECTION
FRAME N – 1 DATA
DATA BLOCK 1
0
1
2
3
1020
1021
1022
1023
WRITE N + 1
READ N + 1
MINIMUM DELAY
CONNECTION
FRAME N + 1
FRAME N
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| T8100A | 制造商:AGERE 制造商全稱:AGERE 功能描述:H.100/H.110 Interface and Time-Slot Interchangers |
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