Wire Mapper Pro Model CA7028
11
4.4 TNV
(Telecom Network Voltage)
Testing and Warning
The Wire Mapper Pro is designed to work on non-
energized circuits only. Make sure that the circuit to
be tested is not live before mapping.
Turn the unit on and plug it into the port to be tested with a short patch
cord.
Structured Cable Tester
WIRE MAPPER PRO
MODEL CA7028
SERVICE / Vp
MAP /
LENGTH / Vp
If a Telecom Network Voltage is present, the unit will give a continuous
audible warning, and display the following:
! ! ! !
Telephone Voltage
detected on
Pin X
! ! ! !
NOTE:
The pin on the RJ45 connection, on which the voltage is detected,
is displayed.
In the event of a TNV (Telecom Network Voltage)
Warning, the unit should immediately be discon-
nected and testing stopped, since it is not designed
for testing on live networks.
