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參數(shù)資料
| 型號： | MH88628 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Central Office SLIC(用于中央辦公線卡的用戶線接口電路) |
| 中文描述： | 中央辦公室用戶接口（用于中央辦公線卡的用戶線接口電路） |
| 文件頁數(shù)： | 11/17頁 |
| 文件大?。?/td> | 91K |
| 代理商： | MH88628 |
2-211
Preliminary Information
MH88628
Tables 1 & 2: Transmit and Receive Gain Programming
Transmit
Gain (dB)
Value (
)
+6.0
No Resistor
+4.0
38.3k
Note 1: See Figures 3 and 4 for additional details.
Note 2: Overall gain refers to the receive path of PCM to 2-wire, and transmit path of 2-wire to PCM.
Note 1: NA indicates high impedance (10k
) connection to this pin does not effect the resulting network balance.
Note 2: See Figure 4 & 5 for Application Circuits.
Note 1: NA indicates high impedance (10k
) connection to this pin does not effect the resulting network balance.
Note 2: Low indicates Logic Low.
Note 3: See Figures 6 and 7 for Application Circuit.
RTX Resistor
Notes
Results in 0dB overall gain when used with Mitel A-law codec (i.e.
MT8965)
Results in 0dB overall gain when used with Mitel
μ
-law codec (i.e.
MT8964)
+3.7
32.4k
0.0
-3.0
-6.0
-12.0
GTX0 to GTX1
5.49k
3.32k
1.43k
Receive Gain
(dB)
RRX Resistor
Value (
)
No Resistor
GRX0 to GRX1
5.49k
4.87k
Notes
+6.0
0.0
-3.0
-3.7
Results in 0dB overall gain when used with Mitel A-law codec (i.e.
MT8965)
Results in 0dB overall gain when used with Mitel
μ
-law codec (i.e.
MT8964)
-4.0
4.64k
-6.0
-12.0
3.32k
1.43k
Table 3: Input Impedance Settings
Z2
Z1
Z600
Z900
Resulting input impedance (Z
in
)
600
900
NA
NA
Connect Z1 to Z600
Connect Z1
to Z9000
NA
NA
Connect Z1
to Z900‘
NA
Connect network from Z1 to Z2
NA
0.1 x impedance between Z1 & Z2
Table 4: Network Balance Settings
NS (Input)
N2
N1
NATT
Resulting input impedance (Z
in
)
Equivalent to Z
in
AT&T compromise (350
+ 1k
// 210nF)
Z
in
must be 600
Low
High
NA
NA
NA
NA
Connect N1
to NATT
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
相關PDF資料 |
PDF描述 |
|---|---|
| MH88631-2 | Central Office Interface (LS/GS) Preliminary Information |
| MH88631 | Central Office Interface (LS/GS) Preliminary Information |
| MH88631-1 | Central Office Interface (LS/GS) Preliminary Information |
| MH88632B | Central Office Interface Circuit(用于中央辦公電話線的接口電路（在音頻轉換設備和用戶線之間提供一個模擬和信號連接）) |
| MH88632B | Central Office Interface Circuit Preliminary Information |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MH88630 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631-2 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88632 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
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