Technical data

Chapter 18 519
T1 Analyzer
Measurement Results
T1 Analyzer
• CRC - A momentary indicator that respond to a disruption of the incoming
CRC. This indicator is applicable in only ESF mode.
Status indicators
• T1 Pulses - The test set is receiving pulses at the receive jack. Frame pulses
alone are not sufficient to activate this indicator. There must be pulses present in
the payload field.
• B8ZS - A B8ZS pulse pattern was detected on the incoming signal at the receive
jack. Note that only certain patterns transmit B8ZS pulse patterns. The pattern
must contain at least 8 consecutive zeroes before a B8ZS pattern is sent. The
QRSS pattern will generate B8ZS while an idle T1 circuit transmitting all 1's
will not.
• Frame Sync - A frame sync pattern matches that specified in the setup screen on
the test set.
• Pattern Sync - The received pattern matches that specified in the setup screen
on the test set
Measurement results fields
Recv Level
The voltage level of the signal measured at the Rx jack. (0 dBdsx = 6 Vpp)
Frequency
The frequency of the signal measured at the Rx jack. The T1 Pulses indicator must
be active for this measurement to be displayed.
Elapsed Time
Indicates the amount of elapsed time since the last measurement reset.
BPV Errors
A tally of the number of BPV errors since the last measurement reset.
BPV Error Rate
The percent ratio of BPV errors to total bits transmitted since the last measurement
reset.