Your excellent helper in cable test!
11
Your excellent helper in cable test!
12
Diagram of Series Products
NF-911
NF-5120
NF-2030
NF-8601S
NF-488
NF-711F
NF-272
L
NF-858C
NF-198
NF-511
NF-707
NF-309
9.FAQ
Result
Reason or solution
Different testing results for
one same cable
Check whether the cable ends are connected well
Keeps the ports clean
Length measured 0.0m
Connects to wrong port, “Length/Flash” is the
correct one.
Make sure the tested cable length is 2.5m~200m
Connects to wrong port, “PoE” is the correct one
Test the cable's continuity to make sure it is a
good cable
Check the PoE device is poweron
No results display when
test PoE
Connects to wrong port, “Length/Flash” is the
correct one
Test the cable's continuity to make sure it is a
good cable
Check the router or switch is on
No flashing port when use
port flash
Connects to wrong port, “SCAN” is the correct one
The mode of transmitter and receiver must keep
the same
Check whether the battary is low
Turn up the sensitivity
No tone when track cable
Adjust the contrast to suit yourself
Replace a new battary
The text on screen is blurry
Turn on the device and auto-
off soon
