參數(shù)資料
型號(hào): XRT7302
廠商: Exar Corporation
英文描述: 2 Channel E3/DS3/STS-1 Line Interface Unit(2通道 E3/DS3/STS-1線接口單元)
中文描述: 2頻道E3/DS3/STS-1線路接口單元(2通道E3/DS3/STS-1線接口單元)
文件頁數(shù): 34/62頁
文件大小: 715K
代理商: XRT7302
XRT7302
2 CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
á
PRELIMINARY
REV. 1.1.6
30
.
2.4.1
cuit
Enabling the Transmit Line Build-Out Cir-
If the Transmit Line Build-Out Circuit is enabled, the
Transmit Section of Channel(n) of the XRT7302 out-
puts shaped pulses onto the line via the TTIP(n) and
TRing(n) output pins.
Enable the Transmit Line Build-Out circuit for each
channel in the XRT7302 by doing the following:
a. Operating in the Hardware Mode
Set the TxLEV(n) input pin to "Low"
b. Operating in the HOST Mode
Set the TxLEV(n) bit-field to "0".
COMMAND REGISTER CR1-(N)
2.4.2
cuit
Disabling the Transmit Line Build-Out Cir-
If the Transmit Line Build-Out circuit is disabled, the
XRT7302 outputs partially-shaped pulses onto the
line via the TTIP(n) and TRing(n) output pins.
To disable the Transmit Line Build-Out circuit, do the
following:
a. Operating in the Hardware Mode
Set the TxLEV(n) input pin to "High".
b. Operating in the HOST Mode
Set the TxLEV(n) bit-field to "1" as illustrated below.
F
IGURE
13. T
HE
B
ELLCORE
GR-253-CORE T
RANSMIT
O
UTPUT
P
ULSE
T
EMPLATE
FOR
SONET STS-1 A
PPLI
-
CATIONS
STS-1 Pulse Template
-0.2
0
0.2
0.4
0.6
0.8
1
1.2
-1
-09
-08
-07
-06
-05
-04
-03
-02
-01
0
01
02
03
04
05
06
07
08
09
1
11
12
13
14
Time, in UI
N
Lower Curve
Upper Curve
D4
D3
D2
D1
D0
TxOFF(n)
TAOS(n)
TxClkINV(n)
TxLEV(n)
TxBIN(n)
0
X
X
0
X
相關(guān)PDF資料
PDF描述
XRT73L02M TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
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