Installation and Programming Manual
Mircom Technologies Inc
All Rights Reserved
LT-1034 Rev.1
Page 49 of 54
9.0 TROUBLESHOOTING GUIDE
The following steps should be taken if an ISD
cannot
be enrolled or located on the network:
•
Ensure that the Phase Coupler breakers are all turned ‘ON’.
•
The NMC will report any and all missing ISDs by suite number (Address). Remember: ‘MISSING’ devices
are not found on the network. ‘UNKNOWN’ devices usually have incorrect VID numbers in the NMC list
which were either entered manually or via the FIRE-LINKLOAD download program.
Missing devices must be corrected either by solving the problem, replacement of the ISD or deletion from
NMC list. Unknown devices will require correction of the VID number or deletion from list.
For Problem Solving:
•
If this is a suite with a 12V halogen light and it was turned ‘ON’ during ISD placement, then
go to suite and remove the ISD. Go to the NMC and plug this ISD into a nearby outlet. Try enrolling this
unit again. (go to ‘EDIT ADDR’ to enroll single ISD). If enrolment takes place, unplug the ISD and go back
to the suite and try various outlets until ‘Flickering’ of the ISD’s green LED takes place (usually within 90
seconds). Enrolment problem has been solved. Repeat for any other ISD missing devices.
If flickering still does not occur in all the outlets tried in this suite, then….
•
A wire-in noise filter will have to be installed at the power source of the 12V halogen. This will either be at
the switch or in the base of the lighting unit. Some halogens are plug-in units. Use the plug-in type filter
for these. Another solution would be to replace the halogen fixture with a more power efficient unit. Suites
with multiple 12V halogens will require multiple filtering. Communications will definitely be effected in this
suite and possibly in neighboring suites as well. Once filters are installed, try enrolling the ISD again from
the NMC. If enrolling still fails…..
•
Possibly check suite for an old TV and/or Computer. Old units have switching power supplies that
generate a lot of noise onto the power line. Try moving the ISD to another outlet on another phase. A
plug-in filter is available for this fix if required. Try enrolling again. If the NMC still can’t enroll the ISD…..
•
As a last resort, try a temporary replacement of an ISD Unit from another suite. If the same result occurs,
then a thorough analysis of the suite for other noise generating devices will be required.
•
If the ISD replacement unit functions properly, remove the non-functioning unit from the NMC network list
and program a new unit in.
•
There will always be a root cause why an ISD device (or multiple devices) is not enrolling on the
first pass.
Remember - Power line conditions will vary from building to building, regardless of the number of suites!
•
Please keep in mind that the enrolment process usually takes about 2 minutes for a typical 40 unit install.
This time will go up dramatically for a 120 unit install to 10 minutes. So, give the NMC sufficient time. The
LCD screen did NOT freeze up!!
Содержание Fire-Link ISD-1000 Series
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