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Operation and Maintenance
Field
Values
Name
Red Alarm
Integer tally of
alarms
counted since
last reset.
Blue Alarm
Tally since last
reset.
Loss of
Tally since last
Frame
reset.
Alignment
Excessive
Tally since last
Zeroes
reset.
Status
Freeze
Signaling
Active
Line
Loopback
Deactivation
Signal
Transmit
Line Short
Transmit
Data
Overflow
Transmit
Slip Positive
T1 Statistics: Field Definitions
Description
The alarm condition declared when a
device receives no signal or cannot
synchronize to the signal being received. A
Red Alarm is generated if the incoming
data stream has no transitions for 176
consecutive pulse positions.
Alarm signal consisting of all 1's (including
framing bit positions) which indicates
disconnection or failure of attached equipment.
Loss of data frame synchronization.
Displayed value will increment if
consecutive zeroes beyond a set threshold
are detected. I.e., tally increments if more
than 7 consecutive zeroes in the received
data stream are detected under B8ZS line
coding, or if 15 consecutive zeroes are
detected under AMI line coding.
Signaling has been frozen at the most
recent values due to loss of frame
alignment, loss of multiframe
alignment or due to a receive slip.
Line loopback deactivation signal has
been detected in the receive bit stream.
A short exists between the transmit pair for
at least 32 consecutive pulses.
For use by MTS Technical Support
personnel.
The frequency of the transmit clock is less
than the frequency of the transmit system
interface working clock. A frame is
repeated.
160
TalkAnytime User Guide
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