EXFO FTB-800 Series for FTB-1 - Manual (Page 216)

Test Setup - Test Configurator, Timer, and System
206 FTB-700G/800 Series
Signal - Signal Configuration (DSn/PDH)
Note: Bit 8 is the Least-Significant Bit (LSB) and bit 1 is the Most-Significant Bit
(MSB).

Payload Content and Set All
Payload Content allows the selection of the payload content that will
be applied to all TX timeslots when tapping the Set All button: Pattern,
Idle, or Tone.

TX
Select the payload content by tapping once or several times on each
timeslot until the desired content appears: Pattern (default), Idle, or
Tone.
Note: For Pattern, the pattern that will be used is the one selected from Pattern on
page 101.
ZCS Description Available with
None
a
a. Default value.
No Zero Code Suppression DS0 and E0
Jammed Bit 8 Every 8th (LSB) bit is forced to 1. DS0 and E0
GTE Bit 8 of an all zero channel byte is
replaced by 1, except in signaling
frames where bit 7 is forced to 1.
DS0
Bell Bit 7 of an all zero channel byte is
replaced by 1.
DS0