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參數(shù)資料
| 型號： | MT8977AC |
| 廠商： | Mitel Networks Corporation |
| 元件分類： | 通信及網(wǎng)絡 |
| 英文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 中文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 文件頁數(shù)： | 17/26頁 |
| 文件大小： | 344K |
| 代理商： | MT8977AC |
Preliminary Information
ISO-CMOS
MT8977
4-115
shows the MT8977 interfaced to a parallel bus
structure using two STPA‘s operating in modes 1 and
2.
The first STPA operating in mode 2 (MMS=0,
MS1=1, 24/32=0), routes data and/or voice
information between the parallel telecom bus and the
T1 or CEPT link via DSTi and DSTo. The second
STPA, operating in mode 1 (MMS = 1 ) provides
access from the signalling and link control bus to the
MT8977 status and control channels. All signalling
and link functions may be controlled easily through
the STPA transmit RAM’s Tx0, Tx1, while status
information is read at receive RAM Rx0. In addition,
interrupts can be set up to notify the system in case
of slips, loss of sync, alarms, violations, etc.
Note: the configurations shown in Figures 11 and 12
using the MT8940/41 may not meet specific jitter
performance requirements. A more sophisticated
PLL or line interface unit with transmit jitter
attenuator may be required for applications designed
to meet specific standards.
Figure 11 - Typical ESF Configuration
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MT8980
MT8977
MT8940/41
MH89761
MT8952
Micro
Processor
STi3
STo3
STo0
STi0
STo1
STi1
STo2
C4i
F0i
CDSTi
CKi
CDSTo
TxCEN
RxCEN
Clock
Extractor
DSTi
DSTo
CSTi0
CSTo
CSTi1
F0i
C2i
C1.5i
TxFDL
TxFDLClk
RxFDL
RxFDLClk
E1.5i
TxA
TxB
RxA
RxB
RxD
TxSF
RxSF
E8Ko
Line
Receiver
1.544
MHz
CVb
F0i
C2o
F0b
C4b
C8Kb
12.355/12.352
MHz Osc.
16.388/16.384
MHz Osc.
MT8940/41
Tx
Line
Driver
Equa-
lizer
D Q
Q
C2
C2
D Q
Q
C2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8977AE | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT8977AP | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT8979 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT8979 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT8979AE | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8977AE | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY T1/ESF Framer Circuit |
| MT8977AP | 制造商:Rochester Electronics LLC 功能描述: 制造商:Mitel Networks Corporation 功能描述: 制造商:Zarlink Semiconductor Inc 功能描述: 制造商:ZARLINK 功能描述: |
| MT8977APR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Zarlink Semiconductor Inc 功能描述: 制造商:ZARLINK 功能描述: |
| MT8979 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY CEPT PCM 30/CRC-4 Framer & Interface |
| MT8979AC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY CEPT PCM 30/CRC-4 Framer & Interface |
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