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Problems with UCM 4.101
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 Posted: Tuesday Aug 26th, 2008 05:53 pm
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Julian.Driver
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I have had UCM 4.101 installed for many years now, and use it to communicate between Comfort , a pc and Homevision. This morning I noticed that they had stopped communicating, and discovered that the red and green LEDs on the UCM are not flashing as expected. Red is unlit, and green is continually on.

What does this mean? If the UCM board is dead, will I be able to replace it with a more modern one, or will I have problems with compatibility?



 Posted: Wednesday Aug 27th, 2008 01:12 am
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slychiu
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Press the RESET button on the UCM. Does the RDY led turn on? If so the microprocessor is still working
The Green D10 led indicates communications from Comfort.  It appears to be steady on, but it is actually flashing quickly. The red D9 led flashes more slowly as it indicates replies from the UCM to polls from Comfort. Check that the ID shunts on SW7 are correct or have not fallen off, as this may be a reason for the UCM not responding to polls



 Posted: Wednesday Aug 27th, 2008 06:39 am
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Julian.Driver
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The RDY LED is permanently lit, and pressing reset makes no difference. You are quite correct, D10 is flashing twice very quickly in a repeating pattern. The three shunts on SW7 are in place and seem OK to the touch.

Where does that leave me?



 Posted: Wednesday Aug 27th, 2008 06:56 am
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slychiu
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Can you check that the Number of UCMs is 1 at least otherwise Comfort will not poll the UCM. Do a Transfer> Upload Selective  (Comfort -> PC ) and select Modules and Settings. Check the number of UCMs
You may not have made any changes but you should confirm the Number of UCMs



 Posted: Wednesday Aug 27th, 2008 07:32 am
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Julian.Driver
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OK. I assume I need configurator for that? If so I will d/l a copy and follow the instructions.



 Posted: Wednesday Aug 27th, 2008 01:13 pm
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slychiu
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You can also check the number of UCMs using the keypad. Go to Engineer Menu 7,4,1 for Locations, enter 1673# Correction 1672# NOT 1673 for number of UCMs, the number announced in the Location will be the number of UCMs. The menu allows you to enter a new number to change it. After that, exit from keypad by pressing F and Reset the Comfort if you have changed the number of UCMs


Last edited on Thursday Aug 28th, 2008 01:04 am by slychiu



 Posted: Thursday Aug 28th, 2008 01:03 am
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slychiu
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Sorry, I made a mistake in the above post. The location should be 1672 for number of UCMs, not 1673



 Posted: Thursday Aug 28th, 2008 07:48 am
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Julian.Driver
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Thanks, I have now checked this location, and as expected it has a value of 1. Any other ideas?



 Posted: Friday Aug 29th, 2008 01:30 am
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slychiu
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I am afraid that means that your UCM is probably dead
You can either send it for repair or get a new UCM05, which is recommended. UCM05 will be compatible with Comfort I. It can upgrade firmware on Comfort II, although that is of no use to you



 Posted: Friday Aug 29th, 2008 05:56 am
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Julian.Driver
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I thought that might be the answer! Thanks for the help though.



 Posted: Friday Aug 29th, 2008 08:14 am
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Julian.Driver
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Just one final point, My motherboard is version 'outside 4.102'. Will this definately work with a version 5 UCM?

As a further point, is there a UCM which connects via USB rather than serial?



 Posted: Friday Aug 29th, 2008 01:07 pm
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slychiu
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Outside (PRO) firmware should work with UCM05. However you may also want to upgrade to the last released Comfort I firmware which is Ultra 4.234 with a new U4. The U1 firmware IC replaces the U1 in the socket. Same with the U4 EEPROM
Of you have difficulty getting a supplier for this in the UK for these old version parts., send me a private message



 Posted: Friday Aug 29th, 2008 02:15 pm
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Julian.Driver
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Thanks for that. I'll look at the release notes to see what benefits that may have.



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