參數(shù)資料
型號(hào): MT9074
廠商: Mitel Networks Corporation
英文描述: T1/E1/J1 Single Chip Transceiver
中文描述: T1/E1/J1收發(fā)單芯片收發(fā)器
文件頁數(shù): 10/122頁
文件大小: 372K
代理商: MT9074
MT9074
Advance Information
10
Figure 6 - Analog Line Interface (E1)
Name
Functional Description
TX2-0
Transmit pulse amplitude.
Select the TX2 –TX0 bits according to the line type, value of
termination resistors (RT), and transformer turns ratio used
TX2 TX1 TX0 Line Impedance(
) RT(
) Transformer Ratio
0 0 0 120 0 1:2
0 0 1 120 0 1:1
0 1 0 120 15 1:2
0 1 1 120 / 75 12.1 1:2
1 0 0 75 0 1:2
1 0 1 75 0 1:1
1 1 1 75 9.1 1:2
1 1 1 75 / 120 12.1 1:2
After reset these bits are zero.
Table 2 -Transmit Pulse Amplitude (E1)
TTIP
0.68uF
1:1
Fuse
Fuse
TRING
1:2
Fuse
Fuse
R
T
R
T
+5V
R
T
: Termination resis-
tor. Please check Table
2 for specific resistor
values.
120
/
75
Rx
Tx
RTIP
RRING
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