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XRT94L43
94
REV. 1.0.2
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
C23
STS3RxD_C1J1_0
EG_DS3E3_FP_8
TxSTS1FP_8
RxSBFrame_0
CONTINUED
O
CMOS
Continued
If STS-3/STM-1 Telecom Bus (associated with STS-3/STM-1 Channel
0) is disabled then the function of this output pin depends upon
whether Channel 8 has been configured to operate in either the DS3/
E3 or STS-1 Modes):
If Channel 8 is configured to operate in the DS3/E3 Mode -
EG_DS3E3_FP_8 (Egress Direction - DS3/E3 Framing Pulse Output
pin - Channel 8):
If the STS-3/STM-1 Telecom Bus (associated with STS-3/STM-1 Channel
0) is disabled and if Channel 8 is configured to operate in either the DS3
or E3 Modes then this pin will function as the "Egress Direction DS3/E3
Framing Pulse" output pin.
In this mode, the Frame Generator block (associated with Channel 8) will
pulse this output pin "HIGH" for one DS3/E3 bit-period, coincident with
the first bit (within a given DS3 or E3 frame) being output via the "DS3/
E3/STS1_Data_OUT_8" output pin.
If Channel 8 is configured to operate in the STS-1 Mode -
TxSTS1_FP_8 (Transmit Direction - STS-1 Framing Pulse Output pin
- Channel 8):
If the STS-3/STM-1 Telecom Bus (associated with STS-3/STM-1 Channel
0) is disabled and if Channel 8 is configured to operate in the STS-1/
STM-0 Mode, then this pin will function as the "Transmit Direction STS-1
Framing Pulse" output pin
.In this mode, the Transmit STS-1 TOH Processor block (associated with
Channel 8) will pulse this output pin "HIGH" for one STS-1 bit-period,
coincident to whenever the very first bit (within a given STS-1 frame)
being output via the "DS3/E3/STS1_DATA_OUT_8" output pin.
NOTE: For those applications in which the XRT94L43 is being interfaced
to DS3/E3/STS-1 LIU devices, we recommend that the user NOT
connect this output pin to any LIU input pin.
J25
STS3RxD_C1J1_1
EG_DS3E3_FP_9
TxSTS1FP_9
RxSBFrame_1
O
CMOS
STS-3/STM-1 Receive Telecom Bus - C1/J1 Byte Phase Indicator
Output Signal - Channel 1; Egress Direction DS3/E3 Frame Genera-
tor Framing Pulse Output pin - Channel 9; Transmit STS-1 Framing
Pulse Output pin - Channel 9:
See description for Pin # C23 above using the appropriate channel num-
bers.
If STS-3/STM-1 Telecom Bus (associated with STS-3/STM-1 has
been enabled - STS-3/STM-1 Receive Telecom Bus - C1/J1 Byte
Phase Indicator Output Signal:
If STS-3/STM-1 Telecom Bus (associated with STS-3/STM-1 Channel
1) is disabled then the function of this output pin depends upon
whether Channel 9 has been configured to in either the DS3/E3 or
STS-1` Modes:
STS-3/STM-1 TELECOM BUS INTERFACE - RECEIVE DIRECTION
PIN #SIGNAL NAME
I/O
SIGNAL
TYPE
DESCRIPTION