4-4
Section 4 OPERATING INSTRUCTIONS
4.2.1 Logic modification
The logic of the set pattern is changed in positive nega-
tive positive order each time the LOGIC key is pressed.
(The set logic is indicated by lighting of a lamp.)
4.2.2 Alternate pattern setting
Select ALTN with the keys.
(DATA, Z.S, and PRBS are also selected with these keys.)
ALTN DATA Z.S. PRBS
ALTN DATA Z.S. PRBS
Pattern A and pattern B are selected with this key. Since
pattern A is set first, set this key so that the A lamp lights.
(It does not matter which pattern is set first.)
Set DATA LENGTH with the and keys.
This value is common to both patterns A and B.
Select the digit to be set with the keys.
Set DATA LENGTH with the keys.
Set value: 128 to 4,194,304 bits (128-bit steps)
Set the number of pattern A loops with the keys.
PATTERN
LOGIC PATTERN PRBS / ZERO SUBST PRBS MARK RATIO
2 - 1
2
POS
NEG
ALTNDATA Z.S PRBS 7 9 11 15 20 23 31 0/8 1/8 1/4 1/2
8/8 7/8 3/4 1/2
DISPLAY
DATA LENGTH/ZERO SUBST LENGTH
DATA LENGTH
ZERO SUBST LENGTH
A / B LOOP TIME
PAGE/ PATTERN SYNC POSITION
DISPLAY
DATA LENGTH/ZERO SUBST LENGTH
DATA LENGTH
ZERO SUBST LENGTH
A / B LOOP TIME
PAGE/ PATTERN SYNC POSITION