Tektronix AWG710B Ventilation Hood User Manual


 
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3-144 AWG710&AWG710B Arbitrary Waveform Generator User Manual
Line Code Conversion
Line code conversion inputs the binary bit pattern and converts the transition from
1 to 0 or 0 to 1 to a positive or negative pulse. Table 3-39 lists the standard defined
code conversions.
Isolated Pulse
The standard–defined isolated pulse is used. You do not need to set a pulse.
When the Line Code is a AMI standard (ITU-T E1, E2, E3, T1.102 DS1, DS1A,
DS1C, DS2, DS3, STS-T), an user defined waveform file can be used as an isolated
pulse. The length of isolated pulse has no restriction.
Table 3-38: Pre–defined patterns
Pattern items Descriptions
PN9 9–bits M–series pseudo random pulse
PN15 15–bits M–series pseudo random pulse
0000
1111
100100
10001000
1000010000
100000100000
1000000010000000
1111100000
Table 3-39: Code conversion
Code conversion Descriptions
CMI (Code Mark Inversion) Last level: Low
Level of the last binary 1: High
B6ZS, B8ZS (Bipolar with Eight
Zero Substitution)
Polarity of the last pulse: Negative
Number of successive 0: 0
B3ZS, HDB3
(High Density Bipolar 3)
Polarity of the last pulse: Negative
Number of successive 0: 0
Number of B pulse: 1
MLT–3
(High Density Bipolar 3)
Initial level: 0,
First output nonzero level: 1