TTC T-BERD 107A, Reference Manual

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SECTION 3
3-56
INSTRUMENT
DESCRIPTION
Auxiliary Functions
In addition to the standard mainframe auxiliary func-
tions, the following auxiliary functions are added to
the T-BERD 107A (see Section 4).
AUX FT1 CHAN — The Fractional T1 Channel
Bandwidth auxiliary function selects the FT1
channel bandwidth being tested in FT1 circuits.
AUX FT1 RATE — The Fractional T1 Channel
Rate auxiliary function sets the FT1 channel
rate.
AUX FT1 IDLE — The Fractional T1 Idle Code
auxiliary function sets the FT1 idle code.
AUX VF TONE — The Voice Frequency Tone
Selection auxiliary function selects the VF fre-
quency and level of the transmitted VF tone. The
VF tone is transmitted on only a single channel,
which is the channel selected in the AUX VF
CHAN function.
The following auxiliary functions are affected by or
have an affect on the FT1 Option (see Section 4).
AUX AUTORESP — When operating in the
FT1 modes and AUTO RESPONSE is enabled,
the T-BERD 107A does not respond to in-band
loop codes. However, the T-BERD 107A does
respond to ESF out-of-band loop codes when
configured for FT1 ESF operation. The AUTO
RESPONSE mode establishes a full bandwidth
loopback and bit error rate test.