atcomsystems.ca/forum Forums TDM Business Telephone Systems NEC Telephones & Systems Old NEC Systems

I used to do a LOT of work with NEC systems, but the most recent was about 25 years ago (before the 2400). I worked on the NA-120 & 409, a little on the NG 403 (all of those were X-Bar), NEAX 12 & 22 - in all of their flavors VS, S, SA, L (those were electronic) and the NEAX 21 & 31 (those were mixed sytems - they had CPUs with Xbar switching matrices). Also on the Electra 28 & 100 Key Systems.

I can't imagine that any of those systems are still out there - but you never know.

Anybody here ever see any of those babies?

Sam

I have 2 12A's that the customers will not get rid of...and 1 409 still being used, along with several NA-120's that are taking up floor space but not being used any more. Its fun to send a new tech that only knows the newer system out to work on the older systems.

Well I know that the 409 will survive the apocalypse (you couldn't put those down with a fireax!) but it's got to be 30+ years old! There weren't many spare parts that you neededs for that beast, but where do you get them these days? And they must have 1A2 sets backing it up. What kind of operation is it - Got to be either government or a hotel.

And the 12A's - if I remember correctly you could program it either from the operator's console or from a maintenance terminal the size of a suitcase (later version) or a steamer trunk (early version).

Amazing. Some very determined (and probably versy stubborn) customers you have there!

Sam

Ahh the old 12A's and the 22's.... Always something going on in those beasts,not nearly as finnicky as the old Electra 100's and the darn tape drives to load the maint. programs!!

The Electra 28's with the double digiting keypads and the super heavy power supplies.

Man now I really feel old!!

we have two Neax 12 L & five Neax 12SA systems working in diferent areas in Jordan,they are working perfectly and we have always been able to fix and repair any card that becomes faulty, cause replacment parts "ICs" are always available..
I am NOT sure that these pbxs will be replaced soon.

Lee -

Changing IC's on a NEAX 12 - what a memory! As I remember every feature had it's own EPROM. I remember when we went to 1+ dialing in NYC and put in a request to NEC for 800 chips. They gave us a 6 month lead time! What to do in the mean time? Tokyo's reply was to unrestrict every phone! Needless to say, the customers screamed.

In the end we bought a chip reader, a writer, an oven and after a little practice, 1,000 blank chips and got the customers up and running. I think we violated the warranty on 800+ systems, but we got the customers up and running.

Sam

You can find all of ours in Hotels owned by a patel and as long as we can resurrect them they will never replace them.

Smoom -

Were they originally installed by UCS (Universal Communications Systems) out of Roanoke?

Sam

Sam,
"I think we violated the warranty on 800+ systems, but we got the customers up and running."
Just curious to know for how long the warranty is valid !!! It is not for ever, is't?? thanks to OLD technolgy we can always find a solution !!

All the systems we have where put in by TSS (Telephone Sales and Service) out of Harrisonburg, VA