Verilink TAC 2130 S/T (880-503296-001) Product Manual - Manual (Page 46)

Diagnostics
5-2 Verilink TAC 2130 User Manual
Diagnostics
Menu
A sample of the Diagnostics Menu is shown below in Figure 5-1 .
In this example the word PULSES appears on both the DTE (left
hand) and network (right hand) sides of the display. When the word
PULSES appears alone, that interface has no alarms.
Figure 5-1 Diagnostics Menu
Since a T1 circuit operates by sending pulses to represent a logical
one, the indication PULSES means that the IDCSU sees pulses on the
network (right side) interface. Therefore, of all the messages which
might appear on this menu in upper case characters, PULSES is the
only one which does not represent an alarm condition. Pulses are
the logical opposite of a Loss of Signal (LOS) condition.
Figure 5-2 below shows the result of disconnecting the T1 circuit
from an IDCSU module. The word PULSES no longer appears on the
right side where network status is indicated. Instead, alarm
conditions are reported, including ALARM, FRAME LOSS, CRC
ERRORS, and SIGNAL LOSS.
NOTE: Whenever an IDCSU reports Signal Loss, it will report other
alarms as well. The other alarms are caused by the signal
loss condition. Ignore the other alarms and find the cause of
the Signal Loss to restore the T1 to service.
IDCSU DIAGNOSTICS FW/HW Rev..1.25/0.8 IDCSU DIAGNOSTICS FW/HW Rev..1.25/0.8 IDCSU DIAGNOSTICS FW/HW Rev..1.25/0.8 IDCSU DIAGNOSTICS FW/HW Rev..1.25/0.8
|-----------------------| |-----------------------| |-----------------------| |-----------------------|
| |
| | | | | |
-------<< dte <<-------|----------|f|----------|-------<< net <<-------
-------<< dte <<-------|----------|f|----------|-------<< net <<------- -------<< dte <<-------|----------|f|----------|-------<< net <<------- -------<< dte <<-------|----------|f|----------|-------<< net <<-------
| |r| | PULSES
| |r| | PULSES | |r| | PULSES | |r| | PULSES
| |a| |
| |a| | | |a| | | |a| |
| |m| |
| |m| | | |m| | | |m| |
PULSES | |e| |
PULSES | |e| | PULSES | |e| | PULSES | |e| |
------->> dte >>-------|----------|r|----------|------->> net >>-------
------->> dte >>-------|----------|r|----------|------->> net >>------- ------->> dte >>-------|----------|r|----------|------->> net >>------- ------->> dte >>-------|----------|r|----------|------->> net >>-------
| |
| | | | | |
|-----------------------|
|-----------------------| |-----------------------| |-----------------------|
W) enable dte loops (YES) D) dte loops S) net signals W) enable dte loops (YES) D) dte loops S) net signals W) enable dte loops (YES) D) dte loops S) net signals W) enable dte loops (YES) D) dte loops S) net signals
Y) enable csu loops (YES) N) net loops E) csu err counter
Y) enable csu loops (YES) N) net loops E) csu err counter Y) enable csu loops (YES) N) net loops E) csu err counter Y) enable csu loops (YES) N) net loops E) csu err counter
T) net test time (15 SEC) Q) end tests Z) reset alarm
T) net test time (15 SEC) Q) end tests Z) reset alarm T) net test time (15 SEC) Q) end tests Z) reset alarm T) net test time (15 SEC) Q) end tests Z) reset alarm
B) dte test and mon bec M) mon leads X) exit menu
B) dte test and mon bec M) mon leads X) exit menu B) dte test and mon bec M) mon leads X) exit menu B) dte test and mon bec M) mon leads X) exit menu
[1,1] NEAR IDCSU 2130 > [1,1] NEAR IDCSU 2130 > [1,1] NEAR IDCSU 2130 > [1,1] NEAR IDCSU 2130 >