Table of Contents
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OPERATION
User Pattern
This displays the test pattern selected with the Set User Pattern (P) func-
tion. If no pattern has been selected, the pattern is Default.
Test Frame
This displays the framing type selected with the Framing (F) function. It
is FRAMED or UNFRAMED. (In Unframed Mode, the framing type is
always UNFRAMED.)
Test Results
This displays the averaged BER, updated once every second. The maxi-
mum BER is 5.59E-3 (5.59 x 10
minimum BER is 1.00E-7 (1.00 x 10
While no test is running, BER is Inactive is displayed.
Test Time
This displays the duration (in seconds) of the current test. While no test
is running, this is blank. During the first seven seconds after the test is
started, the CSU is collecting and averaging initial results and displays
Please Wait....
Initiate Test
This function starts the test. You cannot make any changes while the test
is running, nor can you exit this screen. To use this function, press I.
a. A slave CSU displays the warning message W A R N -
ING: Interfering To Inband Communication
when the user attempts to perform DS1 Self-Test.
Use only out-of-band communication for perform-
ing DS1 Self-Test.
b. If you initiate a DS1 diagnostic while a DS0 diag-
nostic is in progress, the DS0 diagnostic is termi-
nated.
Terminate Test
This function stops the test. To use this function, press T.
Select Test Pattern
This function selects the test pattern. To use this function, press S to step
through the four test patterns available (displayed in Test Pattern).
Set User Pattern
This function allows you to select your own test pattern. It is a 16-bit, bi-
nary pattern (ones and zeros). To use this function, press P. Enter 16 bits,
3-24
-3
, or 5.59 bit errors per 1,000 bits). The
-7
, or 1 bit error per 10,000,000 bits).
CAUTIONS
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