參數(shù)資料
型號： MH89790BS
廠商： Mitel Networks Corporation
元件分類： 通信及網(wǎng)絡(luò)
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)： 2/32頁
文件大?。?/td> 488K
代理商： MH89790BS
4-188
MH89790B
Preliminary Information
Figure 2 - Pin Connections
Pin Description
Pin #
Name
Description
2
IC
Internal Connection.
Leave open circuit.
3
E2o
2048 kHz Extracted Clock (Output)
: This clock is extracted by the device from the
received signal. It is used internally to clock in data received at RxT and RxR.
4
V
DD
RxA
D.C. Power Input. (+5V).
5
Receive A (Output)
: The bipolar CEPT signal received by the device at the RxR and
RxT inputs is converted to a unipolar format and output at this pin.
6
7
RxT
RxR
Receive Tip and Receive Ring Inputs.
The AMI receive signal is input to these pins.
Both inputs should be connected to a center-tapped, center-grounded transformer.If the
receive side of the device is not used, these pins must be tied to ground through 1k
resistors.
8
RxB
Receive B (Output)
: The bipolar CEPT signal received by the device at the RxR and
RxT inputs is converted to a unipolar format and output at this pin.
9
NC
No Connection
.
10
CSTi1
Control ST-BUS Input #1
: A 2048 kbit/s stream that contains channel associated
signalling, frame alignment and diagnostic functions.
11
CSTi0
Control ST-BUS Input #0
: A 2048 kbit/s stream that contains 30 per channel control
words and two Master Control Words.
12
E8Ko
8 kHz Extracted Clock (Output)
: An 8 kHz output generated by dividing the extracted
2048 kHz clock by 256 and aligning it with the received CEPT frame. The 8 kHz signal
can be used for synchronizing the system clock to the extracted 2048 kHz clock. Only
valid when device achieves synchronization (goes low during a loss of signal or a loss
of basic frame synchronization condition).
E8Ko goes to high impedance when 8kHzSEL = 0 in MCW2.
13
XCtl
External Control (Output):
An uncommitted external output pin which is set or reset via
bit 1 in Master Control Word 2 on CSTi0. The state of XCtl is updated once per frame.
14
XSt
External Status:
The state of this pin is sampled once per frame and the status is
reported in bit 1 of the Master Status Word 1 on CSTo.
15
CSTo
Control ST-BUS Output
: A 2048 kbit/s serial control stream which provides the 16
signalling words, two Master Status Words, Phase Status Word and CRC Error Count.
IC
E2o
VDD
RxA
RxT
RxR
RxB
NC
CSTi1
CSTi0
E8Ko
XCtl
XSt
CSTo
ADl
DSTi
C2i
E2o
F0i
NC
LOS
NC
NC
NC
NC
VSS
NC
DSTo
NC
OUTB
NC
RxMF
TxMF
OUTA
PADo
TxG
PADi
VSS
NC
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
相關(guān)PDF資料
PDF描述
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
MH89792-3 E1 Transceiver Preliminary Information
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
MH89792-3 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:E1 Transceiver Preliminary Information
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