Verilink QUAD T1 (880-503345-001) Product Manual - Manual (Page 38)

Performance
4-2 Verilink QUAD T1 User Manual
Table 4-1 Performance Menu Details
T1 24 Hour
Performance
The T1 24 Hour Performance Menu is accessed by typing "P" at the
T1 Port Performance Menu. From this menu, thirteen reports are
available. The T1 24 Hour Performance Menu is shown in
Figure
4-2 and documented in Table 4-2 .
Item Description Details
LOS Indicates whether a Loss Of Signal
condition currently exists.
Major alarm that occurs when no pulses
(ones) are detected in over one hundred bit
times.
LOF Indicates whether a Loss Of Frame
condition currently exists.
Major alarm that occurs when the receiver
circuitry is unable to locate the framing bit in
the received T1 signal.
AIS Rx/Tx Indicates whether Alarm Indication
Signal is currently being received or
transmitted.
AIS is declared when the port receives a
pattern of unframed all-ones. A QUAD T1 port
transmits all-ones when it is in a local loop.
RAI Rx/Tx Indicates whether Remote Alarm
Indication is currently being received
or transmitted. RAI is also called
Yellow Alarm.
When received, it indicates the remote device
is in a Red Alarm condition (LOS, LOF. AIS).
The port will transmit RAI when it is in a state
of LOF, LOS or is receiving unframed all-ones.
Slip Timing slip indicator. Indicates whether timing slips have occurred
during the current fifteen-minute interval.
CRC6 Indicates whether the configured
threshold for ESF errors has been
exceeded during the current 15-
minute interval.
Cyclic Redundancy Check is an error checking
method used on ESF T1s only. This status
information is not applicable to SF T1 circuits.
CGA Indicates status of Carrier Group
Alarm.
CGA is true if an LOS, LOF or AIS condition
exists.
Restore State Indicates in-service or out-of-service
status of each T1 port.
IMUX modules will remove a T1 from service if
configurable alarm conditions occur.
P) display
performance data
Calls a submenu that gives access to
up to 24 hours worth of performance
statistics.
Accesses 13 different types of reports, and a
command to reset registers. See the section
" T1 24 Hour Performance ".
T) threshold
status
Calls a submenu with counter values
for seven alarm thresholds.
Indicates whether currently configured alarm
thresholds have been exceeded. See the
section " Threshold Status ".
C) display T1
counters
Calls a submenu that displays current
values of three T1 counters.
See the section " QUAD T1 Counter Menu "
X) exit this menu Exits to menu above. Returns the user to the Performance Menu.