atcomsystems.ca/forum Forums Wiring - Telecom Carriers - Trunks & Services Security, Alarms and Paging RJ11E?

I emailed Samsung because it's free. Also, ANYTHING they say I will find a use for, including their not replying (=don't bother with another Samsung security product).

As for the cable, if it is "shielded", as they say, then it sells at a pretty fair price: 60ft cable
This outfit even sells connectorised 1000ft cable: web page

The bundle itself was inexpensive, and very easy to set up and use. This was the first time I did anything involving cctv and the ease of use and quality impressed me. Otherwise I wouldn't be asking. I will take a cable apart and examine it when I have the time.

I have something similar in use at my theater. It came from Home depot for around 100 bucks, which was pretty cheap 4 years ago. The cable came in two sections, one hard wired into the camera, with a female coupler. The other was an RJ11 on one end, and the other had an Video RCA and a audio RCA, plus a female DC power connector. The cable has needed splicing a couple times, and luckilly it was just red, green, yellow and black. The coupler popped apart recently, so I took the opportunity to splice in a length of regular silver satin so I could move the camera farther from the stage.

My next project with it will be to move the camera again, cut a bunch of the cable out, re-splice, and feed it into an RF modulator so I can send the signal to the two ends of the stage on coax.

You really ought to look at network IP cameras. Plug it into your switch or hub with regular CAT5, assign it an IP (or let DHCP do it) and look at it on any PC. It's that simple.

Multi-camera software can get kind of expensive depending on the number of cameras but consider it does the split screen thing and records everything on the hard drive so you don't spend any money on a recorder.

-Hal

The thing is that this bundle with 17" flat monitor, 4 color cameras, the processor/hub (which hooks up to vcr and to alarms), and all the cables came in at less than $$. Obviously this is a beginner-type diy system which suits me fine. A search for IP cameras with their own network connection or the wireless ones, revealed that they cost almost $$$ each.

Rob, I noticed you said your system uses a 4-wire cable. The Samsung I have uses a 6-wire one. When I was trolling for info I noticed that Bosch used to sell "RJ11E" observation systems that used what they called "dual twisted pair, 4-pole RJ11e cable". Who makes that stuff up? Also, their 2 pairs are wired side-by-side and use 1 conductor each for audio, video, power, and control. Amazing technical feats.
Anyway, I'm encouraged by your experience, how was the image quality after all the splices?


Edited to remove prices

Hi SPH et al.
Did you find out anything else? ie. is it shielded?

The RJ11E 6-conductor cable that comes with the Samsung system is wired the same on each end (if you look at the ends side by side).

I looked at some RJ25 3-line phone cable but it's wired to the opposite ends, sort of like Cat5 cable.

Couldn't I just cut off the end of the RJ25 cable and add another phone connector (wiring it like the other RJ-11E cable)?

Or is there something special about the RJ-11E cable itself?

Looks like they put some glue on the connector's end and a tougher outer jacket like Cat5 cable, other than wiring it differently.

Also, the RJ25 coupler I don't believe will work as it's just a straight passthrough.

Looks like the RJ11E coupler has to crossover the signal.

Thanks.