Welcome, Guest. Please login or register.
May 25, 13, 02:49AM
Home Help Search Login Register
News:

+  Do It Yourself Home Security Alarm Forum
|-+  Alarm System Monitoring
| |-+  Off Site Notification - Remote Monitoring
| | |-+  UL Standard and Phone Ping		 « previous next »
Pages: [1] Print
Author Topic: UL Standard and Phone Ping  (Read 2151 times)
asJack1
Newbie
*

Karma: +0/-0
Posts: 3
« on: Aug 24, 07, 03:27PM »
What does the official UL standard say about daily or hourly pings of a home owners landline?  From my understanding, a UL central station/ alarm system is supposed to test for an active line every 24 hours (or something like that).  Can anyone confirm this?


Thanks!
Logged
Old EW Tech
Tech Advisor/Moderator
*

Karma: +210/-0
Posts: 8988

40 yrs. in system design
« Reply #1 on: Aug 26, 07, 08:06AM »
The applicable UL Standard for Digital Alarm Communicators is 1635.

You are correct; the transmitter must contact the receiver at least once every 24 hours (regular tests, openings, closings, etc). 

There are exceptions for dual phone lines if they are fault monitored and the control can switch between the two lines and for residential fire/burglar applications.

I think there are a couple more exceptions but I couldn't tell you what they are without reviewing the Standard.
Logged
If you don't have time to do it right the first time ...how are you ever going to find time to do it over?
Repairguy
Tech Advisor/Moderator
*

Karma: +50/-0
Posts: 1360

I used to do this for a living, now it's my hobby!
« Reply #2 on: Aug 31, 07, 10:51PM »
Keep in mind that the monitoring center being UL certified does not mean that your alarm is.  You must meet all UL requirements on your end as well.
Logged
Any alarm is only as good as its planning and install.  Spend the time and money to do it right the first time or you will spend twice the money to pay someone else to do it right the second time!
DEL Installations
Tech Advisor/Moderator
*

Karma: +200/-0
Posts: 8501


Low voltage and communications contractor
« Reply #3 on: Sep 29, 07, 10:25PM »
And be inspected and certificated by an UL underwriter (on your dime, both for the trip and the inspection)  Smiley
Logged
Electronics usually don't work as intended once the magic smoke is released from them

I'd like to be called sir at least once without being followed with "you're making a scene"
Pages: [1] Print 
« previous next »
Jump to:  


Login with username, password and session length