web statisticsweb stats Business Phone Systems Tech Talk Forum - VOIP & Cloud Phone Help

Business Phone Systems

Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
#615154 01/03/18 10:20 AM
Joined: Oct 2006
Posts: 1,384
Likes: 6
Yoda Offline OP
Member
OP Offline
Member
Joined: Oct 2006
Posts: 1,384
Likes: 6
New entrance terminal and new underground cable to a new building on campus. Are the protection modules in the terminal direction sensitive? Does it matter which side of the terminal the UG cable goes to? I think I know but would like to hear it from someone else to confirm.

I should be protecting the pbx, so the inside cable to the switch should be on the output of the terminal? And the UG on the input.
And do the same at the other end of the UG, so the UG is always on the input, and the equipment and phones to protect are always on the output side.

Thank you.
Jim

Atcom VoIP Phones
VoIP Demo

Best VoIP Phones Canada


Visit Atcom to get started with your new business VoIP phone system ASAP
Turn up is quick, painless, and can often be done same day.
Let us show you how to do VoIP right, resulting in crystal clear call quality and easy-to-use features that make everyone happy!
Proudly serving Canada from coast to coast.

Joined: Feb 2005
Posts: 12,342
Likes: 3
Member
***
Offline
Member
***
Joined: Feb 2005
Posts: 12,342
Likes: 3
I never looked but I believe they are symmetrical. So, no, it shouldn't make any difference. But the terminals have an in and out which is what I paid attention to.

-Hal


CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
Joined: Oct 2006
Posts: 1,384
Likes: 6
Yoda Offline OP
Member
OP Offline
Member
Joined: Oct 2006
Posts: 1,384
Likes: 6
Now that I think about it, some protectors have one side marked "protected side". Perhaps the electronics in the module are polarity sensitive and the ground pin is connected accordingly. I think I'm over-analyzing this and starting to doubt myself. My wife says I make things more difficult than they need to be.

Jim

Joined: Sep 2006
Posts: 3,290
Member
*****
Offline
Member
*****
Joined: Sep 2006
Posts: 3,290
They are not polarity sensitive. If they were, a reversed pair would foul things up.

The long pins get connected to the OSP. The short pins get connected to the subscriber equipment. The middle pin is ground. If you wire the BET correctly, the modules will be facing the correct direction. The ground pin is off-set to prevent the module from being inserted incorrectly. Most BET's have a wiring diagram that indicates which cable goes where, Some have a cable tail. Those are easy to figure out. The tail gets spliced to the OSP.


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

Joined: Jan 2005
Posts: 15,378
Likes: 13
Moderator-Vertical, Vodavi, 1A2, Outside Wire
*****
Offline
Moderator-Vertical, Vodavi, 1A2, Outside Wire
*****
Joined: Jan 2005
Posts: 15,378
Likes: 13
Exactly, plus you'll notice that one pair of pins has an indentation that permits the module to be partially inserted. This enables you to disconnect the station side (short pins) from the circuit, while keeping the OSP pair and ground intact for maintained protection. They thought of everything in the design of those things.


Ed Vaughn, MBSWWYPBX
Joined: Sep 2006
Posts: 3,290
Member
*****
Offline
Member
*****
Joined: Sep 2006
Posts: 3,290
"They thought of everything in the design of those things."

And there is the nutshell comment. They designed EVERYTHING the right way, and now, it's an industry that's going to be forgotten in two generations.


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

Joined: Oct 2006
Posts: 1,384
Likes: 6
Yoda Offline OP
Member
OP Offline
Member
Joined: Oct 2006
Posts: 1,384
Likes: 6
Thank you all for the information. Your help is appreciated.

Jim

Joined: Feb 2005
Posts: 12,342
Likes: 3
Member
***
Offline
Member
***
Joined: Feb 2005
Posts: 12,342
Likes: 3
Originally Posted by Arthur P. Bloom
"They thought of everything in the design of those things."

And there is the nutshell comment. They designed EVERYTHING the right way, and now, it's an industry that's going to be forgotten in two generations.

I heard that Apple is going to incorporate 5 pin protectors in the next iPhone so they won't be damaged by Millennials who are too stupid to stop texting and go inside during a thunder storm.

-Hal


CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
Joined: Oct 2006
Posts: 1,384
Likes: 6
Yoda Offline OP
Member
OP Offline
Member
Joined: Oct 2006
Posts: 1,384
Likes: 6
Originally Posted by hbiss
Originally Posted by Arthur P. Bloom
"They thought of everything in the design of those things."

And there is the nutshell comment. They designed EVERYTHING the right way, and now, it's an industry that's going to be forgotten in two generations.

I heard that Apple is going to incorporate 5 pin protectors in the next iPhone so they won't be damaged by Millennials who are too stupid to stop texting and go inside during a thunder storm.

-Hal

But that ground tail . . .

Joined: Feb 2005
Posts: 12,342
Likes: 3
Member
***
Offline
Member
***
Joined: Feb 2005
Posts: 12,342
Likes: 3
They will be sold with a free pair of tap shoes...

-Hal


CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
Page 1 of 2 1 2

Moderated by  EV607797 

Link Copied to Clipboard
Forum Statistics
Forums84
Topics94,262
Posts638,696
Members49,757
Most Online5,661
May 23rd, 2018
Popular Topics(Views)
211,098 Shoretel
187,707 CTX100 install
186,794 1a2 system
Newest Members
BPopilek, Rich F, LewisR, TDKs79, Buttinset
49,757 Registered Users
Top Posters(30 Days)
dexman 18
Toner 14
TDKs79 8
teleco 4
Who's Online Now
2 members (Toner, Touch Tone Tommy), 124 guests, and 241 robots.
Key: Admin, Global Mod, Mod
Contact Us | Sponsored by Atcom: One of the best VoIP Phone Canada Suppliers for your business telephone system!| Terms of Service

Sundance Communications is not affiliated with any of the above manufacturers. Sundance Phone System Forums - VOIP & Cloud Phone Help
©Copyright Sundance Communications 1998-2024
Powered by UBB.threads™ PHP Forum Software 7.7.5