Black Box 5000 series Reference Manual page 254

3 – Display Far End
The display far end option for T1 is
Operation
Line
# of 15-min intervals
# of current seconds
Total PRM packets
Good PRM packets
current
ES
BES
SES
UAS
SLIPS
SEFS
LES
DM
PCVs 00000000
Operation: displays the current operaion mode (T1 or E1), line build out, channel rate and frame encoding.
Line: Link status – connected or disconnected
# of 15-min intervals: count of 15 minute intervals since the statistics were last cleared.
# of current seconds: count of seconds since the beginning of the current 15 minute sampling interval
ES Errored Seconds – seconds in which a single CRC, Framing, Out of Frame error or Alarm
Indication Signal (unframed all 1s) occurred.
BES Bursty Errored Seconds – seconds with more than one but less than 320 CRC, Framing, Out of
Frame errors or Alarm Indicator Signals.
SES Severely Errored Seconds – seconds with 320 or more CRC, Framing, Out of Frame errors or Alarm
Indicator Signals.
UAS Unavailable Seconds – count of blockof Severely Errored Seconds, starts at the first 10 contigous
SES, ends when 10 non-SES received.
SLIPS Count of slip events - when data is received faster than it can be read from receive buffer, a frame is
dropped to clear the buffer.
SEFS Severely Errored Framing Seconds – seconds with 320 or more frame synchronization errors.
LES Line Errored Seconds – count of seconds with more than one line code violation (LCV).
DM Degraded Minutes – minutes in which the Line Code Violation rate is between 1 in 1000 and 1 in
1,000,000
PCVs Path Coding Violations – frame synchronization bit or CRC errors.
Menus Reference Manual: Link Performance Menu
T1 Remote Performance
: T1 Long Haul (LBO 0 dB), F-64K, B8ZS, SF
: connected
: 0
: 0
: 0
: 0
Int #1 Int #2
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
00000000 00000000
Link: 1
Int #3
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
00000000
254
Hour Day
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
00000000 00000000