Previous Thread
Next Thread
Print Thread
Rate This Thread
Page 2 of 2 1 2
#484514 - 04/11/07 08:59 PM Re: 556a PBX  
Joined: Jan 2005
Posts: 14,629
EV607797 Offline
Moderator-Vertical, Vodavi, 1A2, Outside Wire
EV607797  Offline

Moderator-Vertical, Vodavi, 1A2, Outside Wire
*****

Joined: Jan 2005
Posts: 14,629
Metropolitan Washington, DC (N...
Sam:

Chances are that it is equipped for grounded ringing. This means that the system isn't expecting today's ring voltage on trunks across tip and ring. It's looking for ringing from the ring lead to ground. A very common situation back in the day.

Make sure that you have a good ground to the 555 and you might luck out. Also, make sure that tip and ring polarity on the trunk(s) is correct.

Google Telephone Equipment Search
#484515 - 04/13/07 09:16 AM Re: 556a PBX  
Joined: Mar 2007
Posts: 33
samcorcione9111 Offline
Member
samcorcione9111  Offline
Member

Joined: Mar 2007
Posts: 33
Evanston IL
Could be. I am sick with a 101 degree fever. so I am staying in bed... I'll probably play with it next weekend.

SC


Sam Corcione
President/Sr.System Specialist
www.diversitycom.com
#484516 - 04/14/07 01:56 PM Re: 556a PBX  
Joined: Mar 2007
Posts: 25
Silent700 Offline
Member
Silent700  Offline
Member

Joined: Mar 2007
Posts: 25
Prospect Heights, IL
Quote:
Originally posted by carolinamw:
In that last picture, are all of the internal wires cut off at the jacks and lamps? or just down at the wooden block?
Not sure if you're talking about my 556a (in the pics linked in this thread's first post) or Sam's 555, but as for mine there is very little wiring remaining, and what there is has been clipped right at the terminals. There is that wooded punch block at the bottom with some wiring leading up and behind the line cards. No idea where that goes (yet smile


Vintage computing in the Chicago area: http://chiclassiccomp.org
#609756 - 04/17/17 10:58 PM Re: 556a PBX [Re: Silent700]  
Joined: Apr 2017
Posts: 1
Ed Greenberg Offline
Member
Ed Greenberg  Offline
Member

Joined: Apr 2017
Posts: 1
Upstate New York
I realize that this was a very old thread. I wonder if the original poster with the 556 is still around, or if there are any other 555/556 hobbyists around.

I just brought home a 556.

Ed Greenberg

#609757 - 04/17/17 11:57 PM Re: 556a PBX [Re: Silent700]  
Joined: Dec 2005
Posts: 7,223
dexman Online content
Spam Hunter
dexman  Online Content
Spam Hunter
*****

Joined: Dec 2005
Posts: 7,223
Arlington, Massachusetts
welcome to Sundance.

The OP hasn't posted for about two years.

Having said that, there are a handful of members who are either retired Bell System employees or avid hobbyists who are very knowledgeable of 1A2 key systems. If you have specific questions, browse the existing topics to see if the questions have been previously asked.

If they haven't, feel free to open new topics and ask away.

We do ask that tacking onto old topics be avoided. New topics can be opened and links to old topics incorporated. smile


I FEATURE 00

www.dexman.webs.com
#609758 - 04/18/17 01:50 AM Re: 556a PBX [Re: Silent700]  
Joined: Jan 2005
Posts: 14,629
EV607797 Offline
Moderator-Vertical, Vodavi, 1A2, Outside Wire
EV607797  Offline

Moderator-Vertical, Vodavi, 1A2, Outside Wire
*****

Joined: Jan 2005
Posts: 14,629
Metropolitan Washington, DC (N...
Sam is quite alive and well, but he hasn't been here lately, as previously mentioned. He's quite active on a Facebook page that specializes in older Bell System products and discussion. I'll send you a link via private messaging to a page there.

#609789 - 04/20/17 02:49 PM Re: 556a PBX [Re: Silent700]  
Joined: Sep 2006
Posts: 3,111
Arthur P. Bloom Offline
Member
Arthur P. Bloom  Offline
Member
*****

Joined: Sep 2006
Posts: 3,111
Shelter Island, New York
Yes, there are a lot of people who collect and operate old cord boards. Why not start a new topic and we can discuss them. We need to talk about your 556 in particular, so you can understand what it is and how it works. (It will probably be not what you expect.)


Arthur P. Bloom
"30 years of faithful service...15 years on hold"

Page 2 of 2 1 2

Moderated by  EV607797, Silversam 

Refurbished Phones & Equipment Search
TARGETED LEADS Telephone Installers, System Installation & Phone System Sales!
Technician Search, enter State or Zip Code
Shout Box
FREE DESI Labeling System Software!
FREE DESI Labeling Software - Click Here!
Most Recent 5 Post
SVMI20e Email gateway settings
by Tariq. 12/16/17 07:39 AM
Avaya Emerges From Chapter 11
by reidtel. 12/15/17 10:33 PM
SBX IP 320 - Entering Lowercase in Station Name
by wahsatchmo. 12/15/17 10:18 PM
radio channels on analog ports
by Bushmills. 12/15/17 06:58 PM
OS7400 + SVMi-20E Call Recording
by GregKlaus. 12/15/17 02:43 PM
Who's Online Now
10 registered members (Curlycord, OBT, Tariq, Touch Tone Tommy, pdxjim911, RATHER BE FISHING, usedphones, dexman, Mercenary Roadie, Yoda), 151 guests, and 479 spiders.
Key: Admin, Global Mod, Mod
Tech Support Line 1.800.766.3425
Over the Phone Tech Support for your Phones and Business Phone Systems
Popular Topics(Views)
Newest Members
Statistikal, wahsatchmo, ShiWham, AdamCook605, shadowstock1
48359 Registered Users
Forum Statistics
Forums60
Topics90,107
Posts614,101
Members48,359
Most Online4,713
Apr 2nd, 2014
Today's Birthdays
baminc, littlemo, Old blond hippity hopping Bunnie
Top Posters(30 Days)
dexman 31
John807 15
hbiss 13
dans 12
Free Voip phone with every line!
FREE Voip Phone - Click Here!
Ad Spot for sale $299 This spot gets 5 million page loads per month! Call 1-800-766-3425
Free Phone Repair Diagnostic
Website for sale!
Business and website or sale!
Contact Us | Telephone System Tech Support | Terms of Service

Sundance Communications is not affiliated with any of the above manufacturers.
©Copyright Sundance Communications 1998-2017
Website Malware Scan




Trusted Partners
Sitemap