Figure 6–1 — Impulse Noise Measurement Selection/Displays - AMERITECH AM5 Instruction Manual

AM5(e) Classic Instruction Manual
Press to leave displayed
measurement and display
first parameter (Figure 6-2)
SEND
PARAM
SEL
MEAS
DISPLAY
Press to cycle
measurement
up or down
in direction
of arrows
PRESS TO START OR
STOP NOISE TEST
(IMP NOISE or
IMP N W/T)
LED flashes
while
test is running.
IMPULSE
NOISE
START
STOP
RUNNING
Display if no hold tone is
received on INP N W/T test.
Figure 6-1 — Impulse Noise Measurement Selection/Display
4 The right display will display a time, impulse counter, or a noise
measurement. In Figure 6-1, the example 90 dBrn reading (0 dBm on an
AM5e Classic) would occur if a 1004 Hz "noise" signal at 0 dBm were
being received for a MEASURE selection of IMP NOISE.
That same signal with a MEASURE selection of IMP N W/T would
probably display "undr" if the line was very quiet.
5. To display additional measurements press the up- or down-arrow key.
The identification and the current value will be displayed (refer to step 3
and Figure 6-1).
6. To display the first parameter (duration), press the PARAMeter SELect
key once. (Refer to Figure 6-2).
November 19, 1997
(18-0047)
One of IMP NOISE or IMP N W/T measurements is displayed unless
parameters have been selected. Measure examples below:
dB
dBm
d B r n
mSEC
HOLD TONE
Lighted for received 1004 Hz on IMP N W/T selection
dBm
d B r n
mSEC
Low, Middle, and High Threshold Counters.
Page 6-10
MEASURE FUNCTIONS
AM5e LED & received 0 level reading.
AM5 LED & received 0 level reading.
Noise reading for very quiet line.
KHz
SEC
MIN
CNT
CNT
10/31/94