Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Notifications
Login / Register
Community
Community
Notifications
close
  • Forums
  • Knowledge Center
  • Events & Webinars
  • Ideas
  • Blogs
Help
Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Login / Register
Sustainability
Sustainability

We Value Your Feedback!
Could you please spare a few minutes to share your thoughts on Cloud Connected vs On-Premise Services. Your feedback can help us shape the future of services.
Learn more about the survey or Click here to Launch the survey
Schneider Electric Services Innovation Team!

Coax Protection: A Myth or a "Maybe?"

APC UPS for Home and Office Forum

Support forum to share knowledge about installation and configuration of APC offers including Home Office UPS, Surge Protectors, UTS, software and services.

cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • Home
  • Schneider Electric Community
  • APC UPS, Critical Power, Cooling and Racks
  • APC UPS for Home and Office Forum
  • Coax Protection: A Myth or a "Maybe?"
Options
  • Mark Topic as New
  • Mark Topic as Read
  • Float this Topic for Current User
  • Bookmark
  • Subscribe
  • Mute
  • Printer Friendly Page
Invite a Co-worker
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send Invite Cancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Send New Invite Close
Top Experts
User Count
BillP
Administrator BillP Administrator
2151
Teken
Spock Teken
100
voidstar_apc
Janeway voidstar_apc
83
View All

Invite a Colleague

Found this content useful? Share it with a Colleague!

Invite a Colleague Invite
Solved Go to Solution
Back to APC UPS for Home and Office Forum
Solved
Anonymous user
Not applicable

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

0 Likes
5
2277
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

Coax Protection: A Myth or a "Maybe?"

I live in Lightning Central in the Hudson Valley (Dr. Frankenstein has rented a castle nearby) and I am replacing cable modems and associated network and audio hardware from surges traveling through the Comcast coax cable wire that goes directly to the modem. (The electric power is contained by the surge side of my Back-Ups BR800 .) The coax bypasses everything and zaps the network via the modem.

If I try to trap surges traveling through the cable coax wire (assuming that I’m properly grounded) I have these questions:

1) Will surge protectors degrade the cable signal enough to slow service or otherwise interfere with customer/Comcast interaction?

2) When most stand-alone surge protectors, after trapping a surge, they discontinue continuity to the modem. No signal until I manually reset the device. Is there a device that will not “break” the circuit on a spike, but still deliver a signal after the spoke has been trapped of shunted?

3) Sales suggested a BR1500-LCD UPS, which has coax in and out. When this unit protects against surges in the coax, what happens? Does that circuit reset automatically? Does the surge protection of this unit degrade the coax signal to the modem?

Many thanks for any thoughts.


---JP

Message was edited by: joypebble

Message was edited by: joypebble

Labels
  • Labels:
  • Universal Transfer Switch
Reply

Link copied. Please paste this link to share this article on your social media post.

  • All forum topics
  • Previous Topic
  • Next Topic

Accepted Solutions
BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

0 Likes
0
2277
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

You are very much welcome JP, and we're glad to hear the ComCast assisted you with the problem. Please do not hesitate to contact us if you'll have any problem using our products.

See Answer In Context

Reply

Link copied. Please paste this link to share this article on your social media post.

Replies 5
Techie_apc
Sisko Techie_apc
Sisko

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

0 Likes
0
2277
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

JP,

1) Will surge protectors degrade the cable signal enough to slow service or otherwise interfere with customer/Comcast interaction?

APC coax surge protection has an insertion loss of 2.3dB. If for example, the incoming signal was 2dB, when the surge protection device is installed the signal received would be 0dB. Therefore, this would have an inadequate signal when surge protection is added to the circuit if the incoming signal is 2dB. If the signal strength is high, then you will not have an issue with the Coaxial cable Surge protector.
Please view the below K-base document for more information.
[http://nam-en.apc.com/cgi-bin/nam_en.cfg/php/enduser/std_adp.php?p_faqid=912]

2) When most stand-alone surge protectors, after trapping a surge, they discontinue continuity to the modem. No signal until I manually reset the device. Is there a device that will not “break” the circuit on a spike, but still deliver a signal after the spoke has been trapped of shunted? 3) Sales suggested a BR1500-LCD UPS, which has coax in and out. When this unit protects against surges in the coax, what happens? Does that circuit reset automatically? Does the surge protection of this unit degrade the coax signal to the modem?

APC Surge protector redirects the excess voltage to ground if it is grounded properly when the Surges pass through the Data lines or Power lines. I have not seen a case with APC surge protectors that after trapping a surge, they discontinue continuity to the modem. However, If the Surge protector were to be overwhelmed by a surge transient the circuit within the SurgeArrest will “OPEN” sacrificing itself to save your computer. Therefore, not allowing any further surges to pass through to the protected equipment.

Secondly, APC believes in "let through voltage" rating. It is the BEST measure of performance. Accepted by UL as a standard test for surge protection. Let through voltage is a measure of the voltage that surge protector passes through and allows to reach the connect equipment. Products are tested using a 6,000v spike. Residual voltage that passes through the protector is measured and assigned as the “let through rating”. Please view the below K-base document for more information.
[http://nam-en.apc.com/cgi-bin/nam_en.cfg/php/enduser/std_adp.php?p_faqid=65]

Reply

Link copied. Please paste this link to share this article on your social media post.

BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

0 Likes
0
2277
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

JP,

Aside from what Techie had said, if you already have a UPS or Surge Protector and wanted to have a bullet-proof protection when it comes to surge you may want to try or know more about our APC ProtectNets --> [http://www.apc.com/products/family/index.cfm?id=145]

Reply

Link copied. Please paste this link to share this article on your social media post.

Anonymous user
Not applicable

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

0 Likes
0
2277
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

You should protect all incoming metalic lines, telephone, coax, power... And also grounding practices are very important, not only the protectors to be used.

It is recomended that all grounded wires be bonded at the point the wires enters any construction or at least the closest place where the wires come from the outside. If the coax ground is not bonded to the orther ground rods, a potential diference can rise on the separate ground rod(s) and high currents can now flow from one ground to the other through your electronics since these lines are "bonded" together inside the equipments by filter capacitors and also since the neutral wire (which is a grounded wire) runs very closely to the safety ground inside power suplies, surges between these lines can cause the electricity to arc inside the PSU and you can imagine the consequences of this.

Whole house surge protectors, for all metalic conductors coming in your house, is a very good choice as well. There are protectors (SPDs) of many types and for all applications. Bonding all grounding rods and grounded conductors at the right spot, is also mandatory!

For areas that are very prone to lightning strikes, whole house surge protectors is a must have as well as plug in protectors like surge protectors, UPSes and the like.

I recommend you reading this Guide from IEEE:

http://www.lightningsafety.com/nlsi_lhm/IEEE_Guide.pdf

Reply

Link copied. Please paste this link to share this article on your social media post.

Anonymous user
Not applicable

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

0 Likes
0
2277
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

Many thanks for all the good ideas. Comcast came to the residence and shortened the ground for their cable by about 12 feet. The tech said that the longer the ground lead, the more chance for a poor ground.

Note: The only reason (in my opinion) why Comcast came so quickly and worked on this problem as a supplier issue rather than the usual, "Well' as a homeowner, you meed to ground your house. It's not OUR problem" as was the usual type of cop-out in the past, was that Verizon arrived on the road to offer the first real competition for Comcast in this area...ever.

God bless competition!

---JP

Reply

Link copied. Please paste this link to share this article on your social media post.

BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

0 Likes
0
2278
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-29 08:06 PM . Last Modified: ‎2024-03-21 01:05 AM

You are very much welcome JP, and we're glad to hear the ComCast assisted you with the problem. Please do not hesitate to contact us if you'll have any problem using our products.

Reply

Link copied. Please paste this link to share this article on your social media post.

Preview Exit Preview

never-displayed

You must be signed in to add attachments

never-displayed

 
To The Top!

Forums

  • APC UPS Data Center Backup Solutions
  • EcoStruxure IT
  • EcoStruxure Geo SCADA Expert
  • Metering & Power Quality
  • Schneider Electric Wiser

Knowledge Center

Events & webinars

Ideas

Blogs

Get Started

  • Ask the Community
  • Community Guidelines
  • Community User Guide
  • How-To & Best Practice
  • Experts Leaderboard
  • Contact Support
Brand-Logo
Subscribing is a smart move!
You can subscribe to this board after you log in or create your free account.
Forum-Icon

Create your free account or log in to subscribe to the board - and gain access to more than 10,000+ support articles along with insights from experts and peers.

Register today for FREE

Register Now

Already have an account? Login

Terms & Conditions Privacy Notice Change your Cookie Settings © 2025 Schneider Electric

This is a heading

With achievable small steps, users progress and continually feel satisfaction in task accomplishment.

Usetiful Onboarding Checklist remembers the progress of every user, allowing them to take bite-sized journeys and continue where they left.

of