EXFO IQS-8100 Series Transport Blazer for IQS-600 - Manual (Page 391)

PDH Tabs
SONET/SDH Application 377
E1/2M TX
Spare Bits
Note: Spare Bits are not available when Framing is set to Unframed.
Press the individual drop list and select the value for each spare bit.
³
S
i0
is located in the bit 1 of the frame containing the frame alignment
signal (FAS). S
i0
is reserved for national use and should be set to 1
when not used. Choices are 0 and 1. The default setting is 1.
³
S
i1
is located in the bit 1 of the frame not containing the frame
alignment signal (FAS). S
i1
is reserved for national use and should be
set to 1 when not used. Choices are 0 and 1. The default setting is 1.
³
S
a4
to S
a8
are located in bit 4 to 8 of frame number 1, 3, 5 and 7 of
sub-multiframe 1 and 2. S
a4
to S
a8
is reserved for national use and
should be set to 1 when not used. Choices are 0 and 1 or 0000 to 1111
depending on the selected framing. The default setting is 1 or 1111
depending on the selected framing.
³
TS16 Frame 0 Bit 5, 7, 8 are located in bit 5, 7 and 8 from Timeslot 16
of frame 0 of a E1 signal. TS16 Frame 0 Bit 5, 7, 8 are reserved for
national use and should be set to 1 when not used. Choices are 000 to
111. The default setting is 111.