AM-48 Test Set (18-0015) Introduction
0015-S01
1-7
Characteristic Specification
3-Tone A three-tone slope frequency mode is provided, which
cycles continuously between 404 Hz, 1004 Hz, and
2804 Hz, giving 5 seconds of each tone. Frequency
accuracy is the same as variable. Level is the same
as variable.
Sweep A programmable frequency sweep generator is
provided. It generates tones continuously from a user-
specified START frequency (200 Hz to 19,999 Hz) to a
user-specified STOP frequency (200 Hz to 19,999 Hz),
at a user-specified frequency STEP interval (1 Hz to
19,999 Hz), and at a user-specified step RATE (0.1
second to 19,999 seconds/frequency). Frequency
accuracy is the same as variable. Level is the same
as variable.
PAR A PAR waveform generator is provided, which
generates the 16 simultaneous frequency PAR
waveform per Bell 41009 specifications. The level
may be set from -40.0 dBm to 0.0 dBm, with 0.1 dBm
resolution. Level accuracy is ±0.5 dBm.
Quiet In quiet mode, the line is terminated with a passive
resistance equal to the line impedance. Also, when in
Quiet, one of 10 user-programmable tones may be
momentarily applied to the line by depressing the (0)
thru (9) keys.
Programmable from this mode are (1) Touch Tone dial
level (-50.0 to 7 dBm), (2) Power down Time Off (1 to
255 minutes), (3) Impulse and Transient test Blanking
Interval (1 to 255 ms), and (4) 10 user-programmable
tones for later instant recall.
Aux Tone A momentary pushbutton is provided for the
generation of an auxiliary tone (2713 Hz), used to
activate remote 829-type loopback devices.
SF Skip A Signaling Frequency (SF) Skip mode prevents the
generation of tones between 2450 Hz and 2750 Hz in
variable or sweep modes.
Distortion Total distortion is < -50 dB @ 1004 fixed tone and
< -40 dB @ any other frequency.
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