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XRT94L43
149
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
REV. 1.0.2
N2
TXL_DATA_N
O
LVPECL
Transmit STS-12/STM-4 Data - Negative Polarity PECL Output:
This output pin, along with TXL_DATA_P functions as the Transmit
Data Output, to the System back-plane (for transmission to some
other System board) or an Optical Transceiver (for transmission to
remote terminal equipment).
For High-Speed Back-Plane Applications, it should noted that data
is output from these output pins upon the rising/falling edge of
TXL_CLKO_P/TXL_CLKO_N).
NOTE: For APS (Automatic Protection Switching) purposes, this
output pin, along with TXL_DATA_P functions as the
Primary Transmit Data Output Port.
P1
TXL_DATA_R_P
O
LVPECL
Transmit STS-12/STM-4 Data - Positive Polarity PECL Output -
Redundant Port:
This output pin, along with TXL_DATA_R_N functions as the
Transmit Data Output, to the Optical Transceiver.
For High-Speed Back-Plane Applications, it should noted that data
is output from these output pins upon the rising/falling edge of
TXL_CLKO_R_P/TXL_CLKO_R_N).
NOTE: For APS (Automatic Protection Switching) purposes, this
output pin, along with TXL_DATA_N functions as the
Redundant Receive Data Input Port.
P2
TXL_DATA_R_N
O
LVPECL
Transmit STS-12/STM-4 Data - Negative Polarity PECL Output -
Redundant Port:
This output pin, along with TXL_DATA_R_P functions as the Trans-
mit Data Output, to the System back-plane (for transmission to
some other System board) or an Optical Transceiver (for transmis-
sion to remote terminal equipment).
For High-Speed Back-Plane Applications, it should noted that data
is output from these output pins upon the rising/falling edge of
TXL_CLKO_R_P/TXL_CLKO_R_N).
NOTE: For APS (Automatic Protection Switching) purposes, this
output pin, along with TXL_DATA_R_P functions as the
Redundant Transmit Data Output Port.
M1
TXL_CLKO_P
O
LVPECL
Transmit STS-12/STM-4 Clock - Positive Polarity PECL Output:
This output pin, along with TXL_CLKO_N functions as the Transmit
Clock Output signal. These output pins are typically used in High-
Speed Back-Plane Applications. In this case, outbound STS-12/
STM-4 data is output via the TXL_DATA_P/TXL_DATA_N output
pins upon the rising edge of this clock signal.
NOTE: For APS (Automatic Protection Switching) purposes, this
output pin, along with TXL_CLKO_N functions as the
Primary Transmit Output Clock signal.
SONET/SDH SERIAL LINE INTERFACE PINS
PIN #SIGNAL NAME
I/O
SIGNAL
TYPE
DESCRIPTION