參數(shù)資料
型號： T8100A
英文描述： H.100/H.110 Interface and Time-Slot Interchangers
中文描述： H.100/H.110接口和時隙Interchangers
文件頁數(shù)： 46/112頁
文件大?。?/td> 1408K
代理商： T8100A
42
Lucent Technologies Inc.
Advance Data Sheet
November 1999
H.100/H.110 Interfaces and Time-Slot Interchangers
Ambassador T8100A, T8102, and T8105
2 Architecture and Functional Descrip-
tion
(continued)
2.4 Subrate Switching for the Ambassador
Family
(continued)
2.4.5 Limitations
While the structure described above is a relatively sim-
ple extension to the existing architecture, it also
imposes one limitation which must be overcome by
application. To prevent changes in the CAM size and
operation, the assumption is that the data is utilized
only once after the stream plus time slot has been rec-
ognized. (This prevents the multiple hit/multiple access
scenario, in which a byte which contains multiple sub-
rate pieces will not have to be accessed several times.)
To gain access to all subrate pieces present in one
incoming byte, that same byte must be broadcast on
multiple stream plus time slots. In this case, each sub-
rate piece can be switched to the appropriate output.
The ideal scenario is to make use of local switching
(either the local TSI or the local CAM) to provide a
loopback for broadcasting the byte in question. Specifi-
cally, the byte is switched to multiple time slots on a
local output. (The packed byte is coming either from a
local input or from the H.100 bus.) The local output is
physically tied to a free local input, and, in turn, the
multiple time slots are subrate switched to the appropri-
ate outputs (on the H.100 bus, for example). This intro-
duces an additional delay of one frame, but allows for
efficient utilization of the H.100 bus as a subrate
switching fabric (see Figure 14).
5-7148F
5-7149F
5-7149F
Figure 14. Unpacking Example Using Local
Loopback
(OR LOCAL-LOCAL
VIA LOCAL CAM)
LOCAL INPUT 1
4 TIME SLOTS
LOCAL OUT 1
4 TIME SLOTS
LOOPBACK WIRE
OUTPUT
CONNECTIONS
H.100 BUS
LOCAL TSI
H-BUS TSI
(INCLUDING SUBRATE)
LOCAL INPUT 0
1 TIME SLOT
(OR LOCAL-LOCAL
VIA LOCAL CAM)
LOCAL INPUT 1
4 TIME SLOTS
LOCAL OUT 1
4 TIME SLOTS
LOOPBACK WIRE
OUTPUT
CONNECTIONS
H.100 BUS
LOCAL TSI
H-BUS TSI
(INCLUDING SUBRATE)
INPUT
1 TIME SLOT
A1 A2 A3 A4 A1 A2 A3 A4 A1 A2 A3 A4 A1 A2 A3 A4
A1 A2 A3 A4
A1
A2
A3
A4
(LOCAL BROADCAST)
INPUT
LOCAL OUTPUT
LOOPBACK INPUT
H-BUS OUTPUTS (EXAMPLE SHOWS SEPARATE STREAMS)
相關(guān)PDF資料
PDF描述
T8102A H.100/H.110 Interface and Time-Slot Interchangers
T8105A H.100/H.110 Interface and Time-Slot Interchangers
T8100 H.100/H.110 Interface and Time-Slot Interchanger
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
T8100A-BAL 制造商:Alcatel-Lucent 功能描述:ELECTRONIC COMPONENT
T8100A-BAL4DB 制造商:AGERE 功能描述:
T8100-D 制造商:GE Sensing & Inspection Technologies 功能描述:CO2/TEMP SENS WALL MNT DUAL OUT
T8100-E 制造商:GE Sensing & Inspection Technologies 功能描述:TRANSMITTER, CO2, HUMIDITY, TEMP 制造商:GE MEASUREMENT & CONTROL 功能描述:TRANSMITTER, CO2, HUMIDITY, TEMP; Plug Type:- ;RoHS Compliant: Yes 制造商:GE MEASUREMENT & CONTROL/GE SENSING 功能描述:TRANSMITTER, CO2, HUMIDITY, TEMP; Plug Type:- ;RoHS Compliant: Yes
T8100-E-D 制造商:GE Sensing & Inspection Technologies 功能描述:TRANSMITTER, CO2, HUMIDITY, TEMP 制造商:GE MEASUREMENT & CONTROL 功能描述:TRANSMITTER, CO2, HUMIDITY, TEMP; Plug Type:- ;RoHS Compliant: Yes 制造商:GE MEASUREMENT & CONTROL/GE SENSING 功能描述:TRANSMITTER, CO2, HUMIDITY, TEMP; Plug Type:- ;RoHS Compliant: Yes
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