Test and Replace Display Components
15
Test and Replace a ProLink Router
A ProLink Router (PLR) sends the signal from the DMP-8000 to
the modules via SATA cables.
Visit
and replacing a ProLink Router.
Test a PLR
Before replacing a PLR, it may be beneficial to perform a self-
test. To test a PLR, follow these steps:
1�
Connect a duplex fiber cable from Fiber Port A to Fiber
.
2�
Connect a working SATA cable from SATA Port A to SATA Port B.
3�
Connect the power cable to the PLR. This will start the PLR self-test.
4�
Wait for the test to complete. This may take up to 90 seconds. If the PLR successfully
sends and receives data through each of the ports, the letters P.A.S will appear on
the Seven Segment Display. If the letters E.r.r appear, the Seven Segment Display will
show the port numbers with issues. Refer to the
ProLink Router 6X5X Installation and
Maintenance Manual (DD1735784)
Appendix A: Reference Documents (p�27)
for
a list of error codes.
The PLR outputs test patterns in a specific order starting with Red, Green, Blue, and
White. The PLR sends out these patterns with full redundancy (out both port A & B at
the same time). If all of the modules change
colors, it shows they all work and that visually
the display is fine, but there could still be a
signal failure that will not show up visually
because of redundancy. The Amber/Yellow
and Magenta test patterns provide a way to
find the normally non-visual breaks.
After it shows the White test pattern, the PLR
shows a Yellow pattern, but it only sends the
that pattern out on port A (no redundancy),
any modules that receive that command will
turn Yellow. However, if there is a signal break,
the modules will not receive the command to
turn Yellow and will remain at their previous
color, which was probably White. Refer to
. The modules that turn Yellow are
working correctly. Modules that are not Yellow
indicate where the signal break is. If all of the
modules turn Yellow, it indicates the signal
path in the “A” direction is working 100%.
After showing the Yellow pattern, the PLR
shows the Magenta pattern, but it only sends
that pattern out on Port B. Any modules that
do not receive the magenta command
will remain at their previous color, which is
probably Yellow. Refer to
they do not turn magenta indicates a signal
break. If they all turn Magenta, it means the
signal path in the “B” direction is 100%.
5�
Replace the PLR if the error persists after troubleshooting.
Figure 24:
ProLink Router
Connected For Self-Test
Figure 25:
ProLink Router Port A Test
Figure 26:
ProLink Router Port B Test
