TTC T-BERD 107A, Reference Manual

Page: 153 / 261

4-56
AUXILIARY
FUNCTIONS
SECTION 4
MODE PATTERN CATEGORY RESULTS
MODE
CATG
PATT
AUX FT1 RATE
— Fractional T1 Channel Rate Select
FTI Option Required
AUX SEL
FT1 RATE
CHAN RATE
64KxN
The AUX FT1 RATE function sets the FT1
channel rate for either 56KxN or 64KxN. If the
channel rate is set to 56KxN, the bandwidth on the
selected FT1 channels is reduced to seven bits, and
the Least Significant Bit (LSB) is set to one in the
transmitter. This auxiliary function is only active in
the FT1 operating modes (FT1 D4, FT1 D1D, and
FT1 ESF).
Use the following procedure to set the FT1
channel data rate.
1. AUX and PATTERN switch
Press the AUX switch to activate the auxiliary
functions. Press the PATTERN switch to
select the AUX FTI RATE function.
2. RESULTS switch
Press the RESULTS switch up or down ar-
row to toggle the channel rate between 64KxN
and 56KxN.
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