Table of Contents
Advertisement
OPERATION
LOOPBACKS
SCREEN
LOOPBACKS
SYN NNS YEL AIS NLB BPV CRC
.
.
.
Loop type
Loop Status:
SELECTS LOOPBACK TEST.
T
Test Loop
L
Line Loop
O
Local Test
R
Remote Test
N
NI Loop
E
Exit
Select Option
3-25
and then press RETURN. The pattern is displayed in User Pattern. This
pattern is retained when you exit this screen, but lost if the CSU is reset or
powered down.
Framing
This function selects a framed or unframed test pattern. Press F to choose
one (displayed in Test Frame).
This function allows you to control one of five standard loopback tests:
Test Loop, Line Loop, Local Test, Remote Test, and NI Loop. Once started,
these tests must be stopped via the Supervisory terminal: they cannot be
stopped via the front panel. To use this function, press L. Figure 3-14 illus-
trates the LOOPBACKS screen.
Loop Type
This displays the test that is running: Test Loop, Line Loop, Local
Loop, Remote Loop, or NI Loop. When no test is running, this dis-
plays NONE.
Loop Status
This displays the test status, ON (running the selected test) or OFF (not
running a test).
DD-MMM-YY HH:MM
TSY TNS O'S LAD
.
.
.
.
.
:
NONE
OFF
CSU : ***
:
FIGURE 3-14. LOOPBACKS SCREEN
LT
ST
.
.
.
.
.
RT
LOR
DS0LB
.
.
.
Advertisement
Table of Contents
