NEC 2000 IPS

[Terry_AIT]

Hello

Have a client that has an NEC 2000 IPS pbx system, seeing flashing LEDs on the cards and some extensions arent working. Am reaching out to anyone out there with exception experience of these systems that maybe able to work remotely on this with me to help fix/diagnose faults. Willing to pay etc.

Thank you
Terry

 

[belevedere]

A flashing LED on the card indicates the port is not assigned, or the card is plugged into the wrong slot. On a more serious note, it could mean the PSW is bad. That depends on wheather all of the cards in that PIM are doing the same thing.
Has any work been done recently? Has anyone removed then replaced any cards? Possibly in the incorrect slot?
If the ports in a slot are programmed as SLT and a multiline card is plugged in, it will flash all of the LEDs on that card. It could also be a defective card.

 

[ctvi]

Too little info to help you. Flashing lights are normal. What changed? Are you a telecom professional with tools to punch down and trace wires?

http://www.ctvi.com

 

[Terry_AIT]

Hello

You will see from the picture that all LEDs are red indicating some fault. We had some storms here in the UK. Nothing has changed in the configuration, came in and noticed the unit was flashing away.

Have rebooted the unit in the correct order, tried swapping cards from the middle unit to the top unit and still the card in the same top unit flashes away.My thinking is the board or some other component of the unit rather than the card itself is faulty.

You said the PSU could be fault? Anyway to diagnose?

Thank you
Terry

 

[OzzieGeorge]

Ok so first question is, are we chasing a fault that doesn't exist? Have you looked in the PIM (shelf) before and not seen flashing lights? Are extensions not working?

Do you know how to log in to the system and check the programming? if not, see here for what key does what in CAT mode (you want the middle column)....

https://www.tek-tips.com/faqs.cfm?fid=6315

To log on to the system, At a dterm in sequence and without pauses press TRF, CNF, *, TRF, CNF, #
After this you should see CAT MODE displayed. If not you either didn't do the sequence fluidly enough or the dterm is restricted from programming.
Then press the key for start (LNR/SPD),then enter 10 (note in the IPS you should really use command 14 for programming this area but it is more complicated to explain and when just looking, 10 will do) then press the key for data entry (Recall), then as we are looking at PIM 1 (they start at 0) enter 100 which is the first port in the PIM then data entry (recall) again and this will display the programming on the first port (you can jump ahead by counting the slots and entering the first port on that card instead of 100, note it starts at 100 so the second card starts at 108 and so on. The errant card seems to be in slot 5 which is the sixth card so 140 upwards) then press data entry again (recall) and this will either show what is programmed on that port or "NONE". Then use step (spkr) to step on through the other 7 ports on the card. If they all show NONE then all is good as the card isn't programmed. If any/all show FXXX (assuming you have 3 digit extensions) then there should be a digital card in there. If any/all show XXX (digits 1 to 0) then there should be an analogue card in there. if it shows Dxxx then it should be a COT card. get back to us with what you find from the programming and what card is in there (note they are hot swapable if you need to take one out to look at the type Just don't pull the CPU card out with the power on!) To get out of programming mode just lift and replace the handpiece.

 

[OzzieGeorge]

Just re read the OP and you have said swapping cards from the middle unit to the top unit. My previous post assumes the bottom unit (if there is one) is a battery box as I couldn't confirm the bus cables were there (there may well be as there seem to be some grey cables running up the right side) if so, add 100 to the port numbers I gave earlier as PIM 2 (3rd box) would be ports 200-263

 

[OzzieGeorge]

If all your faulty extensions are in the 3rd PIM then you may well have lost a Firmware processor, can't remember the exact card number bur it will be something like a BS00 or BS01. It may be both as there will be one in PIM 0 and one in PIM 2. (edited to add) it is the rightmost card in the PIM and there is one per two pims, so 0, 2, 4 etc

 

[belevedere]

Your picture shows only a few LED's flashing, except for 2 cards. One in each PIM shows all LED's flashing. This is not the usual indication of a bad CPU.
Use a volt meter set to DCV. Push the + end into the back of the power plug going into the back plane. The - probe goes to GND. You are looking for 5VDC and 27VDC.
You said that you swapped some cards. Did you swap like for like? Did you swap one of the cards with no LED's flashing?
If all LED's are flashing and the picture did not capture that, then look to the PSU.

 

[OzzieGeorge]

IIRC the card LEDs strobe from left to right on the cards when there is an issue! So any picture will probably only capture one card with the LEDs on.

 

[belevedere]

The original post says that some phones are working. Which phones in what PIM? Of the phones that are working, are they working properly?
I'd power down and back out all cards except for the first multiline card in PIM 0 and test. One by one add cards back in.
With a lightning hit it could also be a damaged back plane.
Start with the PSU's. Measure the voltages.

 

[OzzieGeorge]

Good advice but if all faulty services are linked to PIM 2 then check PSU then BS0X cards. That said it could still be a backplane too! one way to find out is to trick the system into thinking the two PIMs (1 and 2 are swapped by swapping bus cables and cards and see if the backplanes work in the new config (or simply swapping backplanes but that is probably harder than moving cards and bus cables around)!

 

[belevedere]

A 2 PIM system in the US did not need a bus card (CP-15), it was built in. The picture does not show one. I have seen in the past, when hit by lightning, a bus chip would blow on the CPU card rendering it to a single PIM. This may be the case here. If so you need a replacement CPU. The chip is not serviceable.

 

[ctvi]

It is a 3 PIM system. The CP 15 is correctly in pim 2.
He only gave us the pictures for pim 1 and 2.
The CPU is in pim 0 (not showing)

http://www.ctvi.com

 

[belevedere]

Is PIM 2 functioning? If so, then we are still looking at a possible PSU issue.

 

[Terry_AIT]

Sorry for late reply guys, appreciate the advice and tips.
We finally have an engineer coming to look at this on Monday.

In regard to the fault, appears a number of extensions aren't working. The phones seem active because you can mute them but no response when trying to dial in our out on the affected extension. The top box in the pic is the one that appears faulty. As soon as you reboot, the LEDs on the card start flashing away. Have noticed the middle box has cards that are blinking away too, so unsure what is going on.

My suspicions think it is PSU related. I think for now going to leave this to the engineer. Will provide feedback on here to let you know outcome.

 

[belevedere]

I have seen in the past, when hit by lightning, a bus chip would blow on the CPU card rendering it to a single PIM.
I was incorrect, it renders it to a 2 PIM system if that chip went bad. You may have multiple issues here.

 

[Terry_AIT]

Had an engineer come take a look, the system can only carry 5 cards out of the 8 (middle cab). Inserting the additional cards causes the system to malfunction and the lines drop, engineer thinks it's definitely a PSU related issue. The top cabinet wasn't programmed so we don't need to worry that one.

Thanks for your assistance...