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參數(shù)資料
| 型號： | MT90823 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 3V Large Digital Switch(3V 大數(shù)字開關) |
| 中文描述： | 3V的大型數(shù)字交換機（3V的大數(shù)字開關） |
| 文件頁數(shù)： | 22/37頁 |
| 文件大?。?/td> | 162K |
| 代理商： | MT90823 |
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22
MT90823
CMOS
Wide Frame Pulse (WFP) Frame Alignment
Mode
When the device is in the wide frame pulse mode
and if the input data streams are sampled at 3/4 bit
time, the device can operate in the HMVIP and
MVIP-90 environment. When input data streams are
sampled at half-bit time as specified in the HMVIP
and MVIP-90 standard, the device can only operate
with data rate of 2 Mb/s. Refer to the ST-BUS output
delay parameter, t
SOD
, as specified in the AC
Electrical Characteristic table.
The MT90823 is designed to accept a common
frame pulse F0i, the 4.096 MHz and 16.384 MHz
clocks required by the HMVIP standards. To enable
the Wide Frame Pulse Frame Alignment Mode, the
WFPS pin has to be set to HIGH and the DR1 and
DR0 bits set for 8.192Mb/s data rate operation.
Digital Access Cross-Connect System
Figure 8 illustrates the use of MT90823 devices to
construct a 256 E1/T1 Digital Access Cross- connect
System (DACS). The system consists of 32 trunk
cards each having eight E1 or T1 trunk interfaces for
a total of 256 trunks. Each trunk card uses two
MT8986 Multi-rate Digital Switches. The central
switching block uses 16 MT90823 devices.
The block diagram at Figure 9 shows how an 8,192 x
8,192 channel switch can be constructed from 4,096
x 4,096 channel switch modules. Figure 6 shows the
implementation of the individual 4,096 x 4,096
channel switch modules from four MT90823 devices.
Figure 10 shows an eight-stream trunk card using
MT8986 Multi-rate Digital Switches to concentrate
32-channel 2.048 Mb/s ST-BUS (DSTi and DSTo)
streams at each E1/T1 trunk onto four 128-channel
8.192 Mb/s streams.
The DACS switching matrix that formerly required
256 MT8986 devices in a square (16 x 16)
configuration can now be provided by 64 MT8986
and 16 MT90823 devices (see Figure 8).
Figure 8 - 256 E1/T1 Digital Access Cross-Connect System (DACS)
8 x E1/T1
Trunk Card
E1
0
E1
7
8 x E1/T1
Trunk Card
E1
8
TC1
E1
15
8 x E1/T1
Trunk Card
(Figure 10)
E1
247
TC31
E1
255
64 input streams
x
64 output streams
Sixteen MT90823
(8 Mb/s mode)
8,192 x 8,192 channel
Switch Matrix
(See Figure 9)
128 channels at 8.192Mb/s
Each lithat consists of
TC0
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MT90823AB | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 2K X 2K/1K X 1K/512 X 512 3.3V 100LQFP - Trays 制造商:Microsemi Corporation 功能描述:3V LARGE DIGITAL SWITCH |
| MT90823AB1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 2K X 2K/1K X 1K/512 X 512 3.3V 100LQFP - Trays 制造商:Microsemi Corporation 功能描述:3V LARGE DIGITAL SWITCH 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DGTL SWITCH 2048X2048 100LQFP 制造商:Microsemi Corporation 功能描述:IC DGTL SWITCH 2048X2048 100LQFP |
| MT90823AG | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 2K X 2K/1K X 1K/512 X 512 3.3V 120BGA - Trays |
| MT90823AG2 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 2K X 2K/1K X 1K/512 X 512 3.3V 120BGA - Trays |
| MT90823AL | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 2K X 2K/1K X 1K/512 X 512 3.3V 100MQFP - Trays |
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