Does anyone have any experience with plenum rated cable being used outdoors? I'm curious if the white outer sheath will stand up to the outdoor elements, especially UV, or if it will harden and crack
I was told that it is OK for a few years. We were given some white and some orange cable and the budget required that we use it or have fewer antennas. We did have some RG8/U and where possible ran
I don't have any experience with plenum rated coax but I do have experience with plenum rated 10baseT cabling and that stuff won't last but a couple of months exposed to the sun. For 10baseT they mak
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Wed, 21 Jun 2006 13:55:05 -0400
Couple of things I need clarifying. What is plenum rated cable? I worked in industry for years, but have been retired for over 7, and never heard the term used. We used thhn and other cables in cable
Plenum-rated cables have a fire-retardant outer jacket for use in plenums (spaces in buildings used for air circulation). 73 - Bob, N7XY _______________________________________________ ______________
Plenum rated cable is designed to be run in return air ducts or in the air space above ceilings or under raised floors. I believe the rating is for fire purposes, it won't outgas hazardous chemicals
10base-T refers to the type of ethernet connection which used Cat5, etc., cables. As opposed to 10base-2 which used 50-ohm coax. I don't see that nomenclature used much anymore. _____________________
Not to split hairs, but 10Base-T Ethernet is spec'd to require a minimum of CAT3 cable (which is capable of 10Mhz over 100 meters). CAT5 (100Mhz) would be required for 100Base-T. Not to say you can't
Plenum rated cables are ones that have insulation that has limited fire spreading ability. In many buildings, the space above a suspended ceiling is used as a HVAC return (i.e. a plenum), and, so, ca
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Wed, 21 Jun 2006 19:07:43 -0400
I'm familiar with 10 base T, 100 Base T, and gigabit used for listing equipment speeds. I'd just never seen it used with cable listings. I use Cat5e for a gigabit LAN. "In the old days" we only had
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Wed, 21 Jun 2006 19:17:19 -0400
I'm running a gigabit over 135 feet of Cat5e tied into a 5 port network and still find it abysmally slow when running back-ups.OTOH is sure is faster than using external USB drives. Roger Halstead (
Drifting afield from antennas here, but.. base -> baseband (as opposed to on a carrier) (10BroadXX was a broadband channelized spec.. I seem to recall it was intended for Cable TV systems, but went a
Roger, T in Base-T indicates twisted pair 2 in Base-2 refers to a maximum of 200 meter long segments using thin coax 5 in Base-5 refers to a maximum of 500 meter long segments using thick coax Now, i
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Thu, 22 Jun 2006 02:01:08 -0400
I'd call them the "old days", but I'm not so sure about "good". Things are so much easier now. OTOH although the programming is easier the code to do the same things takes 10 to 100 times as much sp
Author: Philip Leonard WVØT <leolists@seidkr.com>
Date: Thu, 22 Jun 2006 09:53:16 -0500
10-Base-2 (also known as ThinNet) was RG-58 (52 ohm). How about ArcNet anyone, or good old coax runs for 3270 terminals, or twinax for 5250 terminals? Wheeeeeeeeeee..... Philip ______________________