Faq; Diagram Of Series Products - Doss NF-8209 Instruction Manual

9.FAQ

Result
Different testing results for
one same cable
Length measured 0.0m
No results display when
test PoE
No flashing port when use
port flash
No tone when track cable
The text on screen is blurry
Turn on the device and auto-
off soon
Your excellent helper in cable test!
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Reason or solution
Check whether the cable ends are connected well
Keeps the ports clean
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
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
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
Adjust the contrast to suit yourself
Replace a new battary

Diagram of Series Products

NF-8601S NF-309
NF-511
NF-2030
NF-858C NF-911
NF-5120
NF-711F
Your excellent helper in cable test!
NF-198
NF-488
NF-707
NF-272L
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