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參數資料
| 型號： | MH89790BN |
| 廠商： | Mitel Networks Corporation |
| 元件分類： | 通信及網絡 |
| 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： | 1/32頁 |
| 文件大?。?/td> | 488K |
| 代理商： | MH89790BN |
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4-187
Features
Complete primary rate 2048 kbit/s CEPT
transceiver with CRC-4 option
Selectable HDB3 or AMI line code
Two frame elastic buffer with 32
μ
s jitter buffer
Tx and Rx frame and multiframe
synchroniza-tion signals
Frame alignment and CRC error counters
Insertion and detection of A, B, C, D signalling
bits with optional debounce
Line driver and receiver
Per channel, overall, and remote loop around
Digital phase detector between E1 line and
ST-BUS
ST-BUS compatible
Pin compatible with the MH89790
Inductorless clock recovery
Loss of Signal (LOS) indication
Available in standard, narrow and surface
mount formats
Supports single supply rail operation
Applications
Primary rate ISDN network nodes
Multiplexing equipment
Private network: PBX to PBX links
Description
The MH89790B is Mitel’s CEPT PCM 30 interface
solution, designed to meet the latest CCITT
standards PCM 30 format with CRC-4. The
MH89790B provides a complete interface between a
2.048 Mbit/sec digital trunk and Mitel’s Serial
Telecom Bus, the ST-BUS.
The MH89790B is a pin-compatible enhancement of
the MH89790, permitting the removal of the tuneable
inductor and inclusion of the external NAND gate
used for generating RxD.
Figure 1 - Functional Block Diagram
TxMF
C2i
F0i
RxMF
DSTo
DSTi
CSTi0
CSTi1
CSTo
VDD
ADl
XCtl
XSt
PADi
TxG
PADo
OUTA
OUTB
RxA
RxT
LOS
RxR
RxB
E2o
E8Ko
VSS
ST-BUS
Timing
Cicuitry
Data
Interface
Control
Logic
Digital
Attenu-
ator
ROM
2 Frame
Elastic
Buffer
with Slip
Control
ABCD
Signalling RAM
CEPT
Link
Interface
Phase
Detector
CEPT
Counter
Clock
Extractor
Receiver
Transmitter
Serial
Control
Interface
Ordering Information
40 Pin DIL Hybrid 1.3” row pitch
40 Pin DIL Hybrid 0.8“ row pitch
40 Pin Surface Mount Hybrid
0°C to 70°C
MH89790B
MH89790BN
MH89790BS
ISSUE 5
May 1995
MH89790B
CEPT PCM 30/CRC-4 Framer & Interface
Preliminary Information
ST-BUS
FAMILY
相關PDF資料 |
PDF描述 |
|---|---|
| MH89790BS | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MH89791 | CEPT PCM 30 Transmit Equalizer Advance Information |
| MH89792-1 | E1 Transceiver Preliminary Information |
| MH89792 | E1 Transceiver Preliminary Information |
| MH89792-2 | E1 Transceiver Preliminary Information |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MH89790BS | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ST-BUS⑩ FAMILY CEPT PCM 30/CRC-4 Framer & Interface Preliminary Information |
| MH89791 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CEPT PCM 30 Transmit Equalizer Advance Information |
| MH89792 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:E1 Transceiver Preliminary Information |
| MH89792-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:E1 Transceiver Preliminary Information |
| MH89792-2 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:E1 Transceiver Preliminary Information |
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