atcomsystems.ca/forum Forums TDM Business Telephone Systems Mitel Telephones & Systems SX-200 fast blinking "ringing" led?

Can anyone tell me why the "ringing" indicator on the power supply of my SX-200 ML/EL cabinet is on and flickering constantly, turning off briefly once a second.

This is a different pattern that it makes when it is actually ringing an analog station (where it is off normally, turning on solid when ringing)

Thanks

From your description , I would hazzard to guess the power supply is starting to fail . Check the led indicators on the analog cards to see if any are showing a busy condition when you know the system is idle . If no busy indications exsist then remove the analog cards one at a time . If the power supply led returns to normal then plug the suspect card back in to see if the trouble returns . If not a card problem look hard at the power supply . Hope this helps .

Good call... pulling my ONS card out clears the led on the power supply. Disconnecting the station cables from the ONS card does not (so it not a short in the station wiring).

I think I have a known good ONS card somewhere, I'll try that and see what happens.

Thanks
Mark

any meassge wait set on any ext in bay will
make light flicker this is normal.not bad power supply or bad card.

Interesting... none of the extensions on the ONS cards should have VM setup. I'll look into it.

Thanks
Mark

You don't need VM setup in order to have ONS message lamps set. There's also the old pre-VM message feature.

Anyway, as TDS said, the LED indication is perfectly normal and nothing to worry about. I would let it be, myself.

TDS is correct this is normal, message wait indications.

Did you ever find out if you had a defective ons card or locate the analog extension that had a callback message set ?

I have what appears to be a similar problem. I hope I am o.k. in posting this here.
I have a SX200 MX system. In one of the bays (slot 1) the Digital line card has an alarm light on. Also the power supply for this bay has a constant ringing light showing. I am not sure if I have 2 problems or one.
I tried switching the digital line card with another one in another bay (same type of card) and the alarm light still shows (slot 1). I was told by a technician to reset the SX200 system which I did this morning. The bay reset but once it came back on the alarm light started flashing. To add to this an analog card (same bay) was removed because a user was not getting a ring to their phone. and from previous posts on Sundance there was mention of bad relays. You could actually hear the relay making a funny noise when the number was called. (Moving the user to another card enabled ringing on his phone.)
Based on all the above, could all these issues be tied to the Power supply unit? Could there be a back plane problem? Amy other thoughts?

Thnx in advance.

The flashing light on hte Digital Line card means that none of the ports are programmed.
Once you program a port, the light will stop flashing.
The "ringing" LED will flicker rapidly when any analog port in that bay has an active Message Waiting light. It may be from voice mail, the console, or sent from an admin phone.
The third problem you mentioned is probably a bad port on the analog card. You can test it quickly by swapping in another card, and test to see if you have the same symptoms.
Let me know if we can be of any further assistance!