XRT94L43
16
REV. 1.0.2
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
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.
M2
TXL_CLKO_N
O
LVPECL
Transmit STS-12/STM-4 Clock - Negative Polarity PECL Out-
put:
This output pin, along with TXLCLKO_P 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 falling 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.
R1
TXL_CLKO_R_P
O
LVPECL
Transmit STS-12/STM-4 Clock - Positive Polarity PECL Output
- Redundant Port:
This output pin, along with TXL_CLKO_R_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_R_P/
TXL_DATA_R_N output pins upon the rising edge of this clock sig-
nal.
NOTE: For APS (Automatic Protection Switching) purposes, this
output pin, along with TXL_CLKO_R_N functions as the
Redundant Transmit Output Clock signal.
SONET/SDH SERIAL LINE INTERFACE PINS
PIN #SIGNAL NAME
I/O
SIGNAL
TYPE
DESCRIPTION