參數(shù)資料
型號: XRT86VL32_1
廠商: Exar Corporation
元件分類: 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
文件頁數(shù): 19/65頁
文件大小: 403K
代理商: XRT86VL32_1
XRT86VL32
16
REV. V1.2.0
DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION
TxOHCLK0
TxOHCLK2
A11
N18
O
8
Transmit OH Serial Clock Output Signal(TxOHCLKn)
This pin functions as an overhead output clock signal for the
transmit overhead interface, and its function is explained
below.
DS1 Mode
If the TxOH pins have been configured to be the source for
Datalink bits, the DS1 transmit framer will provide a clock edge
for each Data Link Bit. In DS1 ESF mode, the TxOHCLK can
either be a 2kHz or 4kHz output signal depending on the
selection of Data Link Bandwidth (Register 0xn10A).
Data Link Equipment can provide data to the TxOHn pin on the
rising edge of TxOHCLK. The framer latches the data on the
falling edge of this clock signal.
E1 Mode
If the TxOH pins have been configured to be the source for
Data Link bits, the E1 transmit framer will provide a clock edge
for each National Bit (Sa bits) that has been configured to carry
data link information. (Register 0xn10A)
TRANSMIT OVERHEAD INTERFACE
S
IGNAL
N
AME
B
ALL
#
T
YPE
O
UTPUT
D
RIVE
(
M
A)
D
ESCRIPTION
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