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參數(shù)資料
| 型號： | MH88632B |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Central Office Interface Circuit Preliminary Information |
| 中文描述： | 中央辦公室接口電路的初步信息 |
| 文件頁數(shù)： | 8/17頁 |
| 文件大?。?/td> | 95K |
| 代理商： | MH88632B |
MH88632B
Preliminary Information
2-246
Note: NA indicates high impedance (10k
) connection to this pin does not effect the resulting Input Impedance
Notes: NA indicates high impedance (10k
) connection to this pin does not effect the resulting Network Balance Impedance.
Low indicates Logic 0.
High indicates Logic 1.
Note: Overall gain refers to the receive path of PCM to 2-Wire.
Note: Overall gain refers to the transmit path of 2-wire to PCM.
Input Impedance Settings
Z2
Z1
Z600
Z900
Resulting input impedance (Zin)
600
900
NA
NA
Connect Z1 to Z600
Connect Z1
to Z900
NA
NA
Connect Z1
to Z900
NA
Connect network from Z1 to Z2
NA
0.1 x impedance between Z1 & Z2
Network Balance Settings
NS (Input)
N2
N1
NATT
Resulting input impedance (Zin)
Low
High
NA
NA
NA
Connect N1 to NATT
NA
Equivalent to Zin
AT&T compromise (350
+ 1k
// 210nF)
Zin must be 600
High
Connect network from N1 to
AGND equivalent to 10 x
NETBAL. Connect network
from N1 to N2 equivalent to 10
x Zin.
NA
0.1 x impedance between N1 & N2
Transmit Gain Programming
Transmit
Gain (dB)
R
TX
Resistor
)
No Resistor
38.3k
32.4k
GTX0 to GTX1
5.49k
3.32k
1.43k
Notes
+6.0
+4.0
+3.7
0.0
-3.0
-6.0
-12.0
Results in 0dB overall gain when used with Mitel A-law codec (i.e. MT8967)
Results in 0dB overall gain when used with Mitel
μ
-law codec (i.e. MT8966)
Receive Gain Programming
Receive
Gain (dB)
R
RX
Resistor
)
No Resistor
GRX0 to GRX1
5.49k
4.87k
4.64k
3.32k
1.43k
Notes
+6.0
0.0
-3.0
-3.7
-4.0
-6.0
-12.0
Results in 0dB overall gain when used with Mitel A-law codec (i.e. MT8967)
Results in 0dB overall gain when used with Mitel
μ
-law codec (i.e. MT8966)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MH88632BT | Central Office Interface Circuit Preliminary Information |
| MH88634-2 | Central Office Interface Circuit(用于中央辦公電話線的接口電路（在音頻轉(zhuǎn)換設(shè)備和用戶線之間提供一個模擬和信號連接）) |
| MH88634BV-2 | SWITCH PB DPDT MINI RTANG ALTACT |
| MH88634B | Central Office Interface Circuit Advance Information |
| MH88634BT-2 | Central Office Interface Circuit Advance Information |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MH88632BT | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88633AV-PE4 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MH88634 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88634-2 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88634B | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Advance Information |
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