EXFO FTB-8510B Guia Del Usuario página 893

H1
SS Bits (H1): Bits 5 and 6 of the H1 byte represent the SS bits.
00
01
10
11
Overwrite: The Overwrite check box when selected, allows the
generation of the selected SS Bits. Overwrite is available with
SONET/SDH Intrusive mode only. In normal mode, the SS Bits are
written on all timeslots (foreground and background). When
SONET/SDH Intrusive is selected, the SS Bits are written on the
foreground timeslots only.
SONET/SDH Application
SS Bits
SONET
Undefined
SDH
Undefined
APS/Advanced Line OH TX/RX (SONET)
Description
SONET Tabs
243