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參數(shù)資料
| 型號(hào)： | MT9042C |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Multitrunk System Synchronizer(多中繼系統(tǒng)同步裝置) |
| 中文描述： | Multitrunk系統(tǒng)同步器（多中繼系統(tǒng)同步裝置） |
| 文件頁(yè)數(shù)： | 18/28頁(yè) |
| 文件大?。?/td> | 126K |
| 代理商： | MT9042C |
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MT9042C
18
Dual T1 Reference Sources with MT9042C in
Automatic Control
For systems requiring simple state machine control,
the application circuit shown in Figure 14 using
Automatic Control may be used.
In
Automatically, is using a Guard Time Circuit, and the
LOS1 and LOS2 inputs to determine all mode
changes.
Since the Guard Time Circuit is set to
about 1s, all line interruptions (LOS1=1) less than 1s
will cause the MT9042C to go from Primary Normal
Mode to Holdover Mode and not switch references.
For line interruptions greater than 1s, the MT9042C
will switch Modes from Holdover to Secondary
Normal, providing the secondary signal is valid
(LOS2=0).
After receiving a good primary signal
(LOS1=0), the MT9042C will switch back to Primary
Normal Mode.
this
circuit,
the
MT9042C
is
operating
For complete Automatic Control state machine
details, refer to Table 5 for the State Table, and
Figure 8 for the State Diagram.
Dual E1 Reference Sources with MT9042B in
Manual Control
For
control, the application circuit shown in Figure 16
using Manual Control may be used.
systems
requiring
complex
state
machine
In this circuit, the MT9042C is operating Manually
and is using a controller for all mode changes. The
controller
sets
the
MT9042C
Holdover or Freerun) by controlling the MT9042C
mode/control select pins (MS2 and MS1). The input
(Primary
or
Secondary)
reference select pin (RSEL).
Primary Holdover Mode to Primary Normal Mode is
enabled and disabled with the guard time input pin
(GTi).
The input to output phase alignment is
re-aligned with the TIE circuit reset pin (TRST), and
a complete device reset is done with the RST pin.
modes
(Normal,
is
selected
TIE correction from
with
the
The controller uses two stimulus inputs (LOS)
directly from the MT9075 E1 interfaces, as well as an
external stimulus input.
come from a device that monitors the status registers
of the E1 interfaces, and outputs a logic one in the
event of an unacceptable status condition.
The external input may
For complete Manual Control state machine details,
refer to Table 4 for the State Table, and Figure 7 for
the State Diagram.
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| MT9044 | T1/E1/OC3 System Synchronizer(T1/E1/OC3 系統(tǒng)同步裝置（由一個(gè)數(shù)字鎖相環(huán)組成）) |
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| MT90500 | Multi-Channel ATM AAL1 SAR |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT9042CP | 制造商:Microsemi Corporation 功能描述: 制造商:Mitel Networks Corporation 功能描述: |
| MT9042CP1 | 制造商:Microsemi Corporation 功能描述:SYNCHRONIZER 28PLCC - Rail/Tube 制造商:Microsemi Corporation 功能描述:PB FREE MULTITRUNK SYSTEM SYNCHRONIZER 制造商:Zarlink Semiconductor Inc 功能描述:SYNCHRONIZER 28PLCC - Rail/Tube 制造商:Zarlink Semiconductor Inc 功能描述:PB FREE MULTITRUNK SYSTEM SYNCHRONIZER |
| MT9042CPR1 | 制造商:Microsemi Corporation 功能描述:SYNCHRONIZER 28PLCC - Tape and Reel 制造商:Zarlink Semiconductor Inc 功能描述:SYNCHRONIZER 28PLCC - Tape and Reel |
| MT9043 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:T1/E1 System Synchronizer |
| MT9043AN | 制造商:Microsemi Corporation 功能描述: |
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