XRT75R03D_06 Datasheet, PDF (79/135 Pages) Exar Corporation – EXAR DATA SHEET FORMAT TEMPLATES

REV. 1.0.4
XRT75R03D
THREE CHANNEL E3/DS3/STS-1 LINE
BIT NUMBER
NAME
1
Receive LOS Defect
Condition Declared
TYPE
R/O
0
Transmit DMO Con-
R/O
dition Declared
DEFAULT
VALUE
DESCRIPTION
0 Receive LOS (Loss of Signal) Defect Condition Declared:
This READ-ONLY bit-field indicates whether or not the
Receive Section (within Channel_n) is currently declaring
the LOS defect condition.
The Receive Section (of Channel_n) will declare the LOS
defect condition, if any one of the following conditions is
met.
• If the Digital LOS Detector declares the LOS defect
condition (for DS3 or STS-1 applications)
• If the Analog LOS Detector declares the LOS defect
condition (for DS3 or STS-1 applications)
• If the ITU-T G.775 LOS Detector declares the LOS defect
condition (for E3 applications).
0 - Indicates that the Receive Section of Channel_n is NOT
currently declaring the LOS Defect Condition.
1 - Indicates that the Receive Section of Channel_n is cur-
rently declaring the LOS Defect condition.
0 Transmit DMO (Drive Monitor Output) Condition Declared:
This READ-ONLY bit-field indicates whether or not the
Transmit Section of Channel_n is currently declaring the
DMO Alarm condition.
If configured accordingly, the Transmit Section will either
internally or externally check the Transmit Output DS3/E3/
STS-1 Line signal for bipolar pulses via the TTIP_n and
TRING_n output signals. If the Transmit Section were to
detect no bipolar for 128 consecutive bit-periods, then it will
declare the Transmit DMO Alarm condition. This particular
alarm can be used to check for fault conditions on the
Transmit Output Line Signal path.
The Transmit Section will clear the Transmit DMO Alarm
condition the instant that it detects some bipolar activity on
the Transmit Output Line signal.
0 - Indicates that the Transmit Section of Channel_n is NOT
currently declaring the Transmit DMO Alarm condition.
1 - Indicates that the Transmit Section of Channel_n is cur-
rently declaring the Transmit DMO Alarm condition.
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