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DS1 SELF TEST
SCREEN
DS1 SELF TEST
SYN NNS YEL AIS NLB BPV CRC
.
.
.
.
Test Pattern:
User Pattern:
Test Frame
Test Results:
Test Time
SELECTS TEST
PATTERN FRAMING.
I
Initiate Test
T
Terminate Test
S
Select Test Pattern
P
Set User Pattern
F
Framing
E
Exit
Enter pattern
OPERATION
This function causes the CSU to generate and verify a test pattern, simi-
lar to the DS1 Self-Test performed by using front panel switches LT and
ST (described in Section 4). However, this test provides additional control
and more test result information. Once started, this test must be stopped
via the Supervisory terminal: it cannot be stopped via the front panel. The
status line ST and front panel TM indicators reflect the status of this test.
To use this function, press S. Figure 3-13 illustrates the DS1 SELF TEST
screen. DS1 Self Test can also be used with DS1 Local Test and DS1 Re-
mote Test from the LOOPBACKS screen. Refer to DS1 Remote Test with
Self-Test and DS1 Local Test with Self-Test in Section 4 for test proce-
dures.
In Unframed Mode, the framing type is always
UNFRAMED and the Framing selection is removed
from the DS1 SELF-TEST screen.
Test Pattern
This displays one of the following test patterns selected with the Select
Test Pattern (S) function:
511
511-bit test pattern
2047
2047-bit test pattern
PROG
user-programmable test pattern
QRS
Quasi-Random Signal (QRS) test pattern
DD-MMM-YY HH:MM
TSY TNS O'S LAD
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.
.
.
511
Default
:
FRAMED
BER is Inactive
:
SELECTS TEST PATTERN.
SELECTS USER-PROGRAMMABLE
TEST PATTERN.
CSU : ***
:
ACTION LINE PROMPTS FOR
16-BIT BINARY PATTERN.
FIGURE 3-13. DS1 SELF TEST SCREEN
3-23
NOTE
LT
ST
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.
.
.
RT
LOR
DS0LB
.
.
.
NOTE: SHADED ITEMS ARE NOT
SHOWN IN UNFRAMED MODE.
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