參數(shù)資料
型號(hào)： MH89770N
廠商： Mitel Networks Corporation
元件分類(lèi)： 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(yè)數(shù)： 2/36頁(yè)
文件大?。?/td> 836K
代理商： MH89770N
4-126
MH89770
Preliminary Information
Figure 2 - Pin Connections
Pin Description
Pin #
Name
Description
2
NC
No Connection.
3
E1.5o
1.544 MHz Extracted Clock (Output):
This clock is extracted by the device from the
received DS1 signal. It is used internally to clock in data received at RxT and RxR.
4
V
DD
RxA
System Power Supply
. +5V.
5
Received A (Output):
The bipolar DS1 signal received by the device at RxR and RxT is
converted to a unipolar format and output at this pin.
6
7
RxT
RxR
Receive Tip and Ring Inputs:
Bipolar split phase inputs designed to be connected
directly to the input transformer. Impedance to ground is approximately 1k
.
Impedance between pins=430
.
8
RxB
Received B (Output):
The bipolar DS1 signal received by the device at RxR and RxT 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 serial control stream which carries 24
per-channel control words.
11
CSTi0
Control ST-BUS Input #0:
A 2048 kbit/s serial control stream that contains 24 per
channel control words and two master control words.
12
E8Ko
8 kHz Extracted Clock (Output):
This is an 8 kHz output generated by dividing the
extracted 1.544 MHz clock by 193 and aligning it with the received DS1 frame. The 8
kHz signal can be used for synchronizing system clocks to the extracted 1.544 MHz
clock. When digital loopback is enabled, the 8kHz is derived from C1.5.
13
XCtl
External Control (Output):
This is an uncommitted external output pin which is set or
reset via bit 3 in Master Control Word 1 on CSTi0. The state of XCtl is updated once per
frame.
14
XSt
External Status (Schmitt Trigger Input):
The state of this pin is sampled once per
frame and the status is reported in bit 5 of Master Status Word 2 on CSTo.
15
CSTo
Control ST-BUS Output:
This is a 2048 kbit/s serial control stream which provides the
24 per-channel status words, and two master status words.
16
NC
No Connection.
NC
LOS
NC
TxFDL
NC
TxFDLClk
VSS
RxFDLClk
DSTo
RxFDL
OUTB
C1.5i
RxSF
TxSF
OUTA
NC
NC
NC
VSS
NC
NC
E1.5o
VDD
RxA
RxT
RxR
RxB
NC
CSTi1
CSTi0
E8Ko
XCtl
XSt
CSTo
NC
DSTi
C2i
E1.5o
F0i
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
MH89770 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
MH89770S Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
MH89790B Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
MH89790BN Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
MH89790BS 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
MH89770S 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:T1/ESF Framer & Interface Preliminary Information
MH89790B 制造商:MITEL 功能描述: 制造商:ZARLNK 功能描述:
MH89790BN 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:ST-BUS⑩ FAMILY CEPT PCM 30/CRC-4 Framer & Interface Preliminary Information
MH89790BS 制造商:MITEL 制造商全稱(chēng):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(chēng):Mitel Networks Corporation 功能描述:CEPT PCM 30 Transmit Equalizer Advance Information
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