14
Voltage Check
– The TestifierPRO
f
continuously monitors voltage level
on its RJ jack and F-connector in all
modes (including menu selection)
when it is on� When it detects voltage,
the “VOLTAGE!!” warning message
appears on the screen and the beeper
sounds until the voltage is removed� The
TestifierPRO
f
is designed to withstand
input voltage conditions that occur
during normal telephony applications
for a short period of time (approx� 10
seconds)�
Diagnostic
– While the unit is off,
holding the SETUP key and pressing the
NETWORK button powers up the unit in
diagnostic mode� Step 1 of diagnostic
mode displays the revision of the
firmware being used. Step 2 activates all
elements of the LCD for a visual check
of the LCD panel� Step 3 allows user
to make 8 key presses to verify button
operation:
T
for Telco mode button,
C
for Coax mode button,
N
for Network
mode button,
∧
for up button,
S
for
Select button,
∨
for down button,
U
for
Setup button and
P
for Power button�
Within these 8 key presses the user
can press any key in any order in any
repeating manner� The ninth key press
starts a diagnostic test on the built-in
remote� Connect the built-in remote with
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