2
U
SE
R
M
AN
U
AL
N
S6
/N
S1
2P
/N
S1
2P
F
If an NS6, NS12P or NS12PF Ethernet switch is operational, but the
Ethernet transmission appears to be unstable:
-
Check maximum operational cable lengths
-
Check that the connectors of the cables have no faults
-
Check that the Link/Active LED is not blinking on all ports
If so, there may be an overload of networking
communication. Try to separate signals on multiple
Ethernetswitches
-
Check that the NS12P and NS12PF’s internal fan is
operational and the device is functioning within operational
environmental specifications
Hardware Failure Diagnostic
(NS12P/NS12PF Ethernet switch Only)
-
Unpower the NS12P/NS12PF Ethernet switch, wait 10
seconds and apply power again. Immediately all LED’s
should be lit for 1 second.
-
If a single (or more) LED is lit for 5 seconds one (or more) of
the following faults may occur:
If any of the above failures are detected the NS12P/NS12PF Ethernet
switch may be used, but should be serviced by a local XLNT service
point.
LED lit
Cause
Fault
PoE LED Port 1
Thermal sensor fault
Fan will run at 75% speed.
If not, do not use this switch!
PoE LED Port 2 PoE IC1 failure
No PoE allocation on port 1 thru 4
PoE LED Port 3 PoE IC2 failure
No PoE allocation on port 5 thru 8
PoE LED Port 4 PoE IC3 failure
No PoE allocation on port 9 thru 12
PoE LED Port 5 NS12 IC1 failure
No Ethernet capabilities for port 1 thru 6
and (NS12PF) ports 13 and 14
PoE LED Port 6 NS12 IC2 failure
No Ethernet capabilities for port 7 thru 12
Chapter 5
Troubleshooting
