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參數(shù)資料
| 型號(hào)： | MT8985 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Enhanced Digital Switch(加強(qiáng)型數(shù)字開(kāi)關(guān)) |
| 中文描述： | 增強(qiáng)型數(shù)字交換機(jī)（加強(qiáng)型數(shù)字開(kāi)關(guān)） |
| 文件頁(yè)數(shù)： | 8/24頁(yè) |
| 文件大小： | 147K |
| 代理商： | MT8985 |
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MT8985
2-52
Figure 7 - Typical Exchange, PBX or Multiplexer Configuration
S/U
Basic Rate Line Card
MT8930/31
MT8910
MT8972
ST-BUS
To other lines
Layers
2 & 3
Entity
MT8940/
MT8941
ROUTING
MATRIX
MT8985’s
MH89760/
MH89790
MT8920
μ
C
ST-BUS
ST-BUS
T1/E1
Link
To other lines
Primary Rate Card
C
P
U
During the microprocessor initialization routine, the
microprocessor should program the desired active
paths through the matrices, and put all other
channels into the high impedance state. Care should
be taken that no two connected ST-BUS outputs
drive the bus simultaneously. When this process is
complete,
the
microprocessor
matrices can bring the ODE signal high to relinquish
high impedance state control to the CMH
b
0s.
controlling
the
Applications
Typical Exchange, PBX or Multiplexer
Figure 7 shows a typical implementation of line cards
being interconnected through a central routing matrix
that can scale up in channel capacity to
accommodate different number of ports depending
on the application. In a configuration where the
switched services utilize concatenated or grouped
time slots to carry voice, data and video (channels of
128, 256 Kb/s, ISDN H0 and others), the central
routing matrix has to guarantee constant throughput
delay to maintain the sequence integrity between
input and output channels. Figure 7 shows an
example where the MT8985 device guarantees data
integrity when data flows from the T1/E1 to the S/U
interface links and vice-versa. Modern technologies
available today such as Frame Relay network using
dedicated fractional T1 are one of the key
applications for the MT8985 device.
Low Latency Isochronous Network
In today's local working group environment, there is
an
increasing
demand
interconnection of desktop and telephone systems
so that mixed voice, data and video services can be
grouped together in a reliable network allowing the
deployment
of
multimedia
multimedia applications require a network with
for
solutions
on
services.
Existing
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8986 | Multiple Rate Digital Switch(多速率數(shù)字開(kāi)關(guān)) |
| MT8992BC | Digital Telephone with HDLC |
| MT8993BC | Digital Telephone with HDLC |
| MT89L80 | Digital Switch(數(shù)字開(kāi)關(guān)) |
| MT89L85 | Enhanced Digital Switch(加強(qiáng)型數(shù)字開(kāi)關(guān)) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8985AE | 制造商:MITEL 功能描述: |
| MT8985AE1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 40PDIP - Rail/Tube 制造商:Microsemi Corporation 功能描述:PB FREE ENHANCED DIGITAL SWITCH 制造商:Zarlink Semiconductor Inc 功能描述:PB FREE ENHANCED DIGITAL SWITCH 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 40PDIP - Rail/Tube 制造商:Microsemi 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 40PDIP |
| MT8985AL | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 44MQFP - Trays 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 44MQFP - Trays |
| MT8985AL1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 44MQFP - Trays |
| MT8985AP | 制造商:Microsemi Corporation 功能描述: 制造商:Mitel Networks Corporation 功能描述: 制造商:MITEL 功能描述: |
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