Editing Eye pattern (section)

=== MLT-3 ===

The eye pattern of a [[w:MLT-3_encoding|MLT-3]] signal should consist of three clearly distinct levels (nominally -1, 0, +1 from bottom to top). The 0 level should be located at zero volts and the overall shape should be symmetric about the horizontal axis. The +1 and -1 states should have equal amplitude. There should be smooth transitions from the 0 state to the +1 and -1 states, however there should be no direct transitions from the -1 to +1 state (which would indicate the signal is PAM-3 rather than MLT-3).

[[File:Eye pattern MLT3.png|thumb|upright=1.5|none|Eye pattern of a 125&nbsp;Mbit/s MLT-3 signal]]