Pathway LR Installers Guide - Manual (Page 17)

DMXPathfinder LR Maintenance & Testing
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proves to be good, test the DMX cable installation for open or shorted lines
using the DMXQConnect loopback test diagnostic (see Chapter 5). A similar
test can be done for input cabling.
If the above tests yield passing results and the problem persists, it may be
necessary to use the Fluke LAN Cable Meter to do a high-frequency analysis of
the suspect cable runs. This test will quickly indicate any anomalies having to
do with cable impedance and capacitance that would result in excessive signal
distortion or attenuation. This test will help to locate less-obvious problems such
as pinched or over-heated cabling that cannot be found with simple continuity
checks.
DMXPathfinder LR Installation and User Guide, Chapter 5 covers the
easy to use diagnostic features of the DMXQConnect software. The
diagnostics can be used to check for defective Pathfinder internal hardware and
to carry out system maintenance procedures such as cable and termination
integrity checks. Please take the time to familiarize yourself with the capabilities
of these diagnostics as they have the potential for helping to save a great deal
of effort and system downtime.
S YSTEM R ESET
Under normal conditions, the user never needs to interact with any part of
the DMXPathfinder LR module installation. Exceptions to this might include
checking the LED status as described previously, or having to recover from a
temporary component failure or when service and card replacement is being
carried out.
A “System Reset” pushbutton has been provided on the face of each Input
Module for the latter purpose. It’s important to remember that only the reset
button on the first Input Module is active. If you depress either one, however, you
will assume that both are inactive as nothing will happen. You will need to
depress and hold the correct one for at least two seconds to initiate a reset
cycle. The external reset function was designed this way to help prevent anyone
from accidentally resetting the DMXPathfinder and momentarily interrupting the
flow of DMX data through it.