Thru; Tx Line Code Key (Quickbert-T1 Only) - Fluke 635 User Manual

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0
2. Press the TX CLK SOURCE key to scroll to the left and the LOOP
CODE key to scroll to the right through the bits. The currently selected bit
will blink.
3. Press the RESULTS UP key to select either "0" or "1." (The RESULTS
UP key toggles between "0" and "1.")
4. Press and hold the RESULTS UP key for approximately two seconds to
clear all bits (in the current length of the pattern) to "1."
When on the last character of the pattern, press the RESULTS DOWN
5.
key to delete the last character.
6. Press and hold the RESULTS DOWN key for approximately two seconds
to clear all bits (in the current length of the pattern) to "0."
7. Press the RESTART key to erase all bits and start with a pattern length of
one bit that is set to "0."
8. To exit the user pattern setup, press the TEST MODE key. The
previously displayed results and setups will be displayed.

2-55. THRU

When this pattern is selected, the Rx signal is passed through the test set and
transmitted back out the Tx jack. This is the only time that Rx and Tx are not
independent. When this pattern is selected, signal monitoring continues and
pattern sync still takes place.

2-56. TX LINE CODE Key (QuickBERT-T1 only)

The line-coding scheme should be set to AMI or B8ZS according to the
configuration of the T1 facility being tested. The selection is made by pressing
the TX LINE CODE key. The line-code selection affects the transmitted
signal, not the received signal. The QuickBERT-T1 automatically evaluates the
received signal and determines the line coding. See section 3-2 for additional
information on the automatic-evaluation function of the QuickBERT-T1.
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