HP 37718A Installation And Verification Manual page 29

General Information
Specifications
'011' M1M2M3 sequences error-free.
DS2 multiframe loss: 3 consecutive
'011' M1M2M3 sequences in error.
DS3 frame gain: 16 consecutive error-
free F-bits.
DS3 frame loss: 3 out of 16 F-bits in
error.
DS3 multiframe gain: 2 consecutive
'011' M5M6M7 sequences error-free.
DS3 multiframe loss: 3 consecutive
'011' M5M6M7 sequences in error.
Test timing: Manual, single fixed, timed
start
Timed start: Single test period starts at a
preset time.
Duration: 1 hour, 24 hours, 72 hours, 7
days, user-defined
User-defined: 1 to 99 - days, hours,
minutes, seconds.
Real-time clock: Date, time and elapsed
test time.
Error summary:
DS1: Bit, Code, Frame and CRC6 -
error count and ratio.
DS3: Bit, Code Frame, P-bit Parity, CP-
Parity and FEBE- error count and ratio.
2 Mb/s: Bit, Code, Frame, CRC4 and
REBE- error count and ratio.
8/34 Mb/s: Bit, Code and Frame- error
count and ratio.
Error analysis
ITU-TG.821: Bit, Frame - All rates,
CRC4 REBE - 2 Mb/s only.
Error count
Severely errored seconds
Percentage severely errored seconds
Errored seconds
Errored seconds Annex D (Bit errors
only)
Percentage errored seconds
Error-free seconds
Percentage error-free seconds
Unavailability
Percentage unavailability
Degraded minutes
Percentage degraded minutes
Code error seconds
Elapsed time
M.2100: TX Error seconds, RX error
seconds. TX severely errored seconds,
RX severely errored seconds, TX
unavailability, RX unavailability.
PDH M.2110: 2 hour BIS result, 24 hour
BIS result, 7 day BIS result.
PDH M.2120: TX 15 minute threshold
report, RX 15 minute threshold report,
TX 24 hour threshold report, RX 24
hour threshold report.
ITU-T G.826: Errored seconds, severely
errored seconds, unavailable seconds,
path unavailable seconds, errored
second ratio, severely errored second
ratio.
In addition errored blocks and
background block error ratio if 2 Mb/s
line rate is selected. If framed all above
for NEAR end and FAR end.
Alarm indication: Signal loss,
pattern loss, AIS, frame loss, out of
frame, multiframe loss, remote
alarm, FEAC, remote multiframe
alarm, excess zero's, idle signal.
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