MICS Dead After Installation

[Thomson66]

I purchased a MICS system piece by piece off eBay and recently mounted it all together on a board. None of the internal lines seem to power-up my phone (T7208). (I was assuming that after powering-up a "bare bones" MICS system, the phones wouldn't work, but they should power-up.)

I was wondering if there is a certain port I need to configure the system from first, or if the MICS unit might not be booting due to NVRAM/Software issue, or something else... no indicator lights.

My bare-bone system is...
-MICS 0x32 with power supply
-NVRAM NTBB08GA-93 0009 Rel 02
-Software NA-MICS-DR 7.1 FC
-Integrated cables with NYNEX SNI-8925 termination blocks that terminate directly to terminal screws with RJ11 style test patch ports. I plugged the phone into these test ports.

My thoughts are...
-need to configure from a special line port.
-NVRAM/Software pair is incompatible and won't boot.
-integrated cables with centronixs plugs on both ends has wrong internal wiring to termination blocks (haven't checked yet).
-Need trunk lines installed to bring system up.

Any suggestions on diagnosing would be appreciated.

 

[Deweyhumbolt]

Do not neeed trunk lines.
One pair per telephone, not polarity sensitive.
Do not need to program from a special port.
Even if problem w S/W, all telephones should have flashing indicators.

I believe bad power supply.

Adversity is Opportunity

 

[Thomson66]

Hymm, the MICS unit and PS appear to be brand new. And, I do get a power indicator lamp. Anywhere on the panel I can test the power supply output voltage?

Thanks for the other points, they help me validate what I had assumed previously.

I'm going to try another phone as well as verify the pre-assembled cables and termination blocks have proper continuty to the ICS ports/pins.

Anybody have any other thoughts or diagnostic tips?

-thanks

 

[Deweyhumbolt]

Then power sounds okay. It then has to be continuity from the MICS to the telephone. You can see the embossed icon for telehones on the MICS backboard, from there run a 25 pr. female amphenol cable to a biscuit, and yes, use more than 1 telephone to test.

Adversity is Opportunity

 

[norstarboy125]

there are 3 amp tails that come off a MICS and if you look close enuff you can see either a picture off a phone or telephone poles, make sure that your cutting it down on one of the phone ones...

 

[CTCINY]

Norstar boy is right. Your probably conencted to the wrong amphenol tail.

What doesn't kill you only makes you stronger.

 

[Thomson66]

Update...

I don't seem to have continuity though my termination block. It appears the NYNEX SNI-8925 are intended as a decarmation point between subscriber lines and customer lines, and not as a break-out point for PBXs.

While the block breaks out the amphonel correctly to the 25 lines, there appears to be some sort of UTU/MTU (Universal Termination Unit) device installed that must be some sort of short-circuit/diode/suppression device or something.

Looks like I might be able to just clip out the safety device and solder the block back up to be passive termination block.



...
)

 

[norstarboy125]

go out and get a 66 or bix and make it easy for yourself...

 

[Thomson66]

OK, figured out the problem with my termination block.

Now the phone blinks continuously, with no way to enter any **STARTUP command or anything. Not sure its even booting up.

Since I got the KSU, NVRAM and Software all separately, is there some way to systematically reset the system?

Am I going to need key codes?

-thanks-

 

[norstarboy125]

you need to power down the system then plug it back in and within like 3 mins or so the enter f**STARTUP/PSWD...but it would seem to me that if your on with your termination block now the phones would come up,keep in mind sometimes it takes awhile for this to happen they always don't boot right up.

 

[Thomson66]

I can't seem to get anything but a blinking light. I don't think my NVRAM is compatible with my DR7.1 software.

It appears I might have a NVRAM R1 instead of an R2. Its labeled "NTBB08GA-93 0009 Rel 02", but I thinks its a R1 and the NTBB08GB-93 is the R2.

Can anyone confirm this.

 

[norstarboy125]

NTBB08GA-93 is R1...

 

[RikRodgers]

After getting a compatible NVRAM cartridge, make sure you give the MICS at least 10 minutes of power before worrying about bad hardware. They can take a while to come up.

What sort of trunk cards have you got in the system?

 

[stevethephoneman]

You got to love EBAY.

Every thing you want
Buy
Any
Yuk

 

[CTCINY]

It may take longer than 10 minutes especially if the system was previously a different version. I would let it sit for at least an hour and then decide if its hardware. I've seen an old system not respond to the new software for over 45 minutes and then it came up and is still up and running to this today working flawlessly so just be patient and let it sit.

What doesn't kill you only makes you stronger.

 

[cook1082]

Also to do any programming you would a M7310 or T7316 or M7324 not a 7208.

 

[exsmogger]

The system probably had a software lower than R6.1 previously installed. Therefore the R7.1 will never finish booting until you open up the motherboard and short out the memory cap.

Brian Cox

http://www.jandjcommunications.com

 

[Thomson66]

I'm just waiting for some photographs on where that cap is.

PS: I'm now using a T7316E to program (f it ever boots).

 

[DigitelD]

Have you tried plugging the system into power and while it is booting up unplug and repeat this process several times and try again.

SHK Certified (School of Hard Knocks)
NCSS

 

[Thomson66]

Well, I've tried to boot it several times now by unplugging it and plugging it back in, so I guess my answer is yes.