Phone Systems

Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
#636484 04/19/20 05:14 PM
Joined: Sep 2006
Posts: 3,290
Member
*****
OP Offline
Member
*****
Joined: Sep 2006
Posts: 3,290
Does anyone know the difference between the Teltone EX-18 and the EX-18A ?

Both are for sale on Ebay, and the labels look similar. Is the A version just an improvement on the same circuit, or does it do something different/ better?

Thanks,


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

Advertising Sponsor
Joined: Dec 2007
Posts: 6,650
Likes: 3
Admin
*****
Online Thinking
Admin
*****
Joined: Dec 2007
Posts: 6,650
Likes: 3


Dean
Photographs:
https://www.instagram.com/deanwilsoncanby/
https://fstoppers.com/profile/deanwilsoncanby

Please don't confuse your "Internet Search" with my licenses, certifications and over 30 years experience.

"Thank you for calling Technical Support. If you feel you have reached this number in error, please hang up and press redial."
Joined: Jan 2005
Posts: 15,288
Likes: 3
Moderator-Vertical, Vodavi, 1A2, Outside Wire
*****
Offline
Moderator-Vertical, Vodavi, 1A2, Outside Wire
*****
Joined: Jan 2005
Posts: 15,288
Likes: 3
I sure don't know a thing about that. Thanks for the kudos, Dean, but Arthur can run circles around me. If he comes along asking a question, there probably isn't an answer!


Ed Vaughn, MBSWWYPBX
Joined: Sep 2006
Posts: 3,290
Member
*****
OP Offline
Member
*****
Joined: Sep 2006
Posts: 3,290
Ed, thanks for the...compliment?...I think.


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

Joined: Sep 2006
Posts: 3,290
Member
*****
OP Offline
Member
*****
Joined: Sep 2006
Posts: 3,290
Speaking of packaged dial intercoms, such as the Teltone and Melco ones, there are two specialized punch-down blocks on Ebay right now. (not my auction) They are designed to accept a double-ended 25-pair cable from the icm units and provide all the outputs you need, with the correct terminal designations, without having to punch down the feed cable. Nice addition to the collection, Chris, or Moss-51. Just sayin'


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

Joined: Dec 2002
Posts: 9,406
Likes: 1
Member
*****
Online Content
Member
*****
Joined: Dec 2002
Posts: 9,406
Likes: 1
Arthur, got a link?


Jeff Moss

Moss Communications
Computer Repair-Networking-Cabling
MBSWWYPBX, JGAE
Joined: Sep 2006
Posts: 3,290
Member
*****
OP Offline
Member
*****
Joined: Sep 2006
Posts: 3,290


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

Joined: May 2007
Posts: 5,005
Likes: 2
Moderator-1A2, Cabling
*****
Online Content
Moderator-1A2, Cabling
*****
Joined: May 2007
Posts: 5,005
Likes: 2
Nice!

Good find.

Sam


"Where are we going and why are we in this hand basket?"
Joined: Sep 2006
Posts: 3,290
Member
*****
OP Offline
Member
*****
Joined: Sep 2006
Posts: 3,290
Yes, Sam, they are nice. When I worked for AT&T at Mt.Sinai Hospital, we had probably 300 dicms in service. We would take a 66B-50 and slide the back off and remove the pins. Then we'd populate the block with 6-across, 3-across, and 2-across pins from a 66M -50 block to make, pretty much, what these are. I guess we were ahead of our time.

One project we had was replacing, one by one, the 207C/216A wire spring relay KTU's with the Teltone packaged units.

The head installer, a telephone genius by the name of Jay Yovino, "invented" that scheme, along with another of his clever items, a 66B populated with 2-across, two blank spaces, and 2-across, creating a dense common audible diode block that took up a great deal less real estate on a backboard than the WE version. We had several closets where just the diode matrix blocks took up a 4' by 6' space. He also was instrumental in getting the company to supply power cord extensions for the 79- and 90-type modular power units, where the cords on the 620 and 640 panels were too short to do a neat installation.


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

Joined: Dec 2002
Posts: 9,406
Likes: 1
Member
*****
Online Content
Member
*****
Joined: Dec 2002
Posts: 9,406
Likes: 1
that is pretty neat, but I don't have a use for one personally smile


Jeff Moss

Moss Communications
Computer Repair-Networking-Cabling
MBSWWYPBX, JGAE
Page 1 of 2 1 2

Moderated by  ChrisRR, EV607797, Silversam 

Link Copied to Clipboard
Most Recent 5 Post
Comdial DXP Call flows
by Rocket J Tech - 04/12/21 02:59 PM
24 VS 23 Gauge
by teldata1 - 04/09/21 10:28 AM
Bell System Central Office Rotation
by dexman - 04/09/21 01:30 AM
DSX 40 built in auto attendant
by dougster - 04/07/21 03:16 PM
SVMI-2 AND SVMI-2E
by dougster - 04/06/21 11:16 PM
Popular Topics (Views)
Forum Statistics
Forums93
Topics94,342
Posts639,398
Members49,445
Most Online5,661
May 23rd, 2018
Today's Birthdays
Hossmaan
Newest Members
Rocket J Tech, Jonce, Generoso, Flashy65, dv8inpp
49,445 Registered Users
Get Tech Support Now! Click the banner below
Get Tech Support Now!
EMP & Lightning Home Surge Protection
EMP - Click Here!
Top Posters (30 Days)
dexman 57
Ruben 17
jsaad 7
Linked Banner to your Product or Website
EMP Shield for Commercial - Home & Vehicle
Use Coupon code SAVE - Click Here!
Who's Online Now
39 members (Yoda, justbill, jeffmoss26, nortelvoip, dougster, mongo5150, sundance, Mercenary Roadie, dude, MooreTel, JBean3329, hbiss, Carl Navarro, Biztel Cuban Okie Tech, Curlycord, Touch Tone Tommy, pvj, KRRath, Ruben, www.telcom1.net, Rocket J Tech, phonemeister, Silversam, nfcphoneman, Professor Shadow, newtecky, BalkyNY, NateBates, Iwatsu Guru, Ironhedz, Memphisribs, Daniel, jsaad, gelehu, dexman, vicbob, metelcom, BobRobert, Skunky), 599 guests, and 50 robots.
Key: Admin, Global Mod, Mod
Advertising Sponsor Spot 2
Contact Us | Telephone System Tech Support | Terms of Service

Sundance Communications is not affiliated with any of the above manufacturers.
©Copyright Sundance Communications 1998-2021
Trusted Partners