Revised 2019-08-22
Hardware Installation
Drawing No. LP0988
Troubleshooting
2-72
N-Tron
®
Series 700/7000 Managed Industrial Ethernet Switch Hardware Manual - Volume II
2.10
Troubleshooting
Troubleshooting the device is comprised of a few basic steps as provided below. If these do not resolve the issue
then contact Red Lion as per the guidance provided in
“Service and Support Information” on page 76
.
1.
Make sure the (Power LED) is ON.
2.
Make sure you are supplying sufficient current for the version chosen.
Note:
The Inrush current will exceed the steady state current by ~ 2X.
3.
Verify that Link LEDs are ON for connected ports.
4.
Verify cabling used between stations.
5.
Verify that cabling is Category 5E or greater for 100Mbit operation.
2.11
Servicing
(7900)
The 7900 model is a modular design based Gigabit Ethernet Switch with up to four slots for ports and one slot for
the CPU module. Please follow the steps below for adding, removing, or swapping modules in the 7900 series
switch.
Technicians performing the following steps should wear proper anti-static equipment to protect the circuit boards.
Warning:
The 7900 model switch is NOT hot swappable. Removing or adding modules while the power is still
on can damage the equipment.
2.11.1
Adding
or
Replacing
a
Module
1.
Remove power from the switch.
2.
Unscrew the two thumb screws for the filler panel or module that you are replacing.
3.
Using both hands pull on both thumb screws to slide the filler panel or module you are replacing.
4.
Align the new module such that it slides on the rails and firmly push it into the unit.
5.
Screw both thumb screws down till they are finger tight.
6.
Reapply the power and configure the slots on the 7900 either through the web management interface or the
serial management interface.
7.
In order to verify the settings have been configured and saved correctly, you may want to view the Logical
View page found in the web browser interface. The dynamic illustration displayed on the Logical View page
must match the physical switch configuration respectively in order for the switch to function correctly. If not,
please repeat the steps listed above.
8.
Validation of the configuration and each physical cable segment may be obtained by using N-View OPC
Server software. The software is freely distributed on the Product CD and our web site (
http://www.ntron.com/
pdf/setup_nviewopc.zip
). Once N-View OPC is installed, you should view the Ports Counter page view each
connected port. You may find it helpful to copy [Alt]+[PrintScreen] the Port Counter information for each port
and paste [C[V] into a Windows document for further review. Please consult your N-View OPC Server
manual for additional information.
Note:
Modules should be installed in slot order (from left to right). So, in a two slot configuration Slots
A and B are populated.
9.
Empty slots must be covered with a 9000-FP to meet emission standards.
