Which side is protected?

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Which side is protected? #615154 01/03/18 10:20 AM
Joined: Oct 2006 Posts: 1,408 Likes: 6 Northeast Iowa Yoda Member
Yoda Member Joined: Oct 2006 Posts: 1,408 Likes: 6 Northeast Iowa	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

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Re: Which side is protected? Yoda #615167 01/03/18 04:49 PM
Joined: Feb 2005 Posts: 12,347 Likes: 4 New York hbiss Member
hbiss Member Joined: Feb 2005 Posts: 12,347 Likes: 4 New York	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.

Re: Which side is protected? Yoda #615168 01/03/18 05:23 PM
Joined: Oct 2006 Posts: 1,408 Likes: 6 Northeast Iowa Yoda Member
Yoda Member Joined: Oct 2006 Posts: 1,408 Likes: 6 Northeast Iowa	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

Re: Which side is protected? Yoda #615173 01/03/18 07:40 PM
Joined: Sep 2006 Posts: 3,290 Shelter Island, New York Arthur P. Bloom Member
Arthur P. Bloom Member Joined: Sep 2006 Posts: 3,290 Shelter Island, New York	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"

Re: Which side is protected? Yoda #615176 01/03/18 10:14 PM
Joined: Jan 2005 Posts: 15,382 Likes: 13 Fayetteville, NC EV607797 Moderator-Vertical, Vodavi, 1A2, Outside Wire
EV607797 Moderator-Vertical, Vodavi, 1A2, Outside Wire Joined: Jan 2005 Posts: 15,382 Likes: 13 Fayetteville, NC	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

Re: Which side is protected? Yoda #615185 01/04/18 05:02 PM
Joined: Sep 2006 Posts: 3,290 Shelter Island, New York Arthur P. Bloom Member
Arthur P. Bloom Member Joined: Sep 2006 Posts: 3,290 Shelter Island, New York	"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"

Re: Which side is protected? Yoda #615187 01/04/18 06:14 PM
Joined: Oct 2006 Posts: 1,408 Likes: 6 Northeast Iowa Yoda Member
Yoda Member Joined: Oct 2006 Posts: 1,408 Likes: 6 Northeast Iowa	Thank you all for the information. Your help is appreciated. Jim

Re: Which side is protected? Arthur P. Bloom #615189 01/04/18 06:30 PM
Joined: Feb 2005 Posts: 12,347 Likes: 4 New York hbiss Member
hbiss Member Joined: Feb 2005 Posts: 12,347 Likes: 4 New York	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.

Re: Which side is protected? hbiss #615197 01/04/18 11:32 PM
Joined: Oct 2006 Posts: 1,408 Likes: 6 Northeast Iowa Yoda Member
Yoda Member Joined: Oct 2006 Posts: 1,408 Likes: 6 Northeast Iowa	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 . . .

Re: Which side is protected? Yoda #615198 01/05/18 12:08 AM
Joined: Feb 2005 Posts: 12,347 Likes: 4 New York hbiss Member
hbiss Member Joined: Feb 2005 Posts: 12,347 Likes: 4 New York	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.

Re: Which side is protected? Yoda #615228 01/05/18 08:21 PM
Joined: Sep 2006 Posts: 3,290 Shelter Island, New York Arthur P. Bloom Member
Arthur P. Bloom Member Joined: Sep 2006 Posts: 3,290 Shelter Island, New York	Or a pair of golf shoes and a 9-iron, to be held above the head, for "better reception" (wink wink.) Arthur P. Bloom "30 years of faithful service...15 years on hold"

Re: Which side is protected? Yoda #615242 01/06/18 12:19 PM
Joined: Jan 2007 Posts: 1,017 N/W New Jersey John807 Member
John807 Member Joined: Jan 2007 Posts: 1,017 N/W New Jersey	A millenial on a golf course? Where? John 807

Re: Which side is protected? Yoda #615290 01/09/18 12:30 PM
Joined: Feb 2014 Posts: 659 Manchester, New Hampshire ChrisRR Moderator-1A2
ChrisRR Moderator-1A2 Joined: Feb 2014 Posts: 659 Manchester, New Hampshire	They'll rebrand the golf shoes as Adidas and call the 9 iron a selfie stick and the millenials will eat them up like Pez candy.

Re: Which side is protected? Yoda #615293 01/09/18 01:18 PM
Joined: Feb 2005 Posts: 12,347 Likes: 4 New York hbiss Member
hbiss Member Joined: Feb 2005 Posts: 12,347 Likes: 4 New York	-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.