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  1. E

    What does 9-30V DC supply mean?

    This is the technical data for the sensor. As you see there is no mention of the power required. However, if the output can only carry max 150mA, am i right in assuming that the power requirement would be max. 150mAx12V=1.8W ?
  2. E

    What does 9-30V DC supply mean?

    There aren't any instructions for the transformer, but this is the one: And now i wonder whether the wattage matters (as this is rated 10W)? The sensor is a Fibaro universal (wireless) sensor which will be connected to four tiny (UFH) floor temp. sensors: http://manuals.fibaro.com/binary-sensor/
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    What does 9-30V DC supply mean?

    OK, any advantage to getting a higher-voltage transformer, e.g. 24V, over a basic 12V one?  Also, how do i tackle the single-cable issue? I have a 12V DC transformer (for LED lights), but that has two (black and red) wires.
  4. E

    What does 9-30V DC supply mean?

    I need to install a sensor which requires a "9-30V DC +/-10%" supply. Clearly i need to buy a transformer to step down the mains voltage, but does 9-30V mean the transformer could be, say, 12V or 24V, i.e. anything between 9 and 30V? Or does 9-30V mean something else? FYI, the sensor only has...
  5. E

    Three RJ45 connectors on one-gang-size plate?

    Thanks, but i think that's for CAT5e only.
  6. E

    Three RJ45 connectors on one-gang-size plate?

    Thanks. I don't have any rooms with four CAT6s. Most are doubles, with two rooms - office and lounge - having three.
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    Three RJ45 connectors on one-gang-size plate?

    Ta very much, that'll save me a fair bit of hassle changing boxes etc!
  8. E

    Three RJ45 connectors on one-gang-size plate?

    He's a gonner (as he was supplied by the contractor), but was pretty useless anyway. He's done a similar thing in the lounge, but there he's put two in one box and one in another box right next to it! The extra box was supposed to be for the aerial/sat! So looks like i'll have to get my new...
  9. E

    Three RJ45 connectors on one-gang-size plate?

    My previous electrician has wired three CAT/6 cables into a a one-gang-size box. The contractor has now been fired (for other reasons), and i'm trying to list outstanding works. My question is: can you get a one-gang-size termination plate with three RJ45 connectors? I couldn't see any on google...
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    Am i being ripped off?

    If i didn't accept the price (as i didn't with some other stuff such as stairs), I would have had to live with their basic electrics as it's not feasible to get another spark in whilst they're on the job. So, yes, my fault in a way. But i can still complain about them taking advantage of the...
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    Am i being ripped off?

    Yes, that's pretty-much hit the nail on the head! Some ppl have more money than sense - i don't. Also, some clients probably have good architects; unfortunately, mine was useless and pulled out mid project. So i have had to take on the role of project supervisor and architect (asking advice from...
  12. E

    Am i being ripped off?

    Their company's been in operation for over five years, so they've clearly been doing a good job of convincing the 99%; and they probably didn't bank on me questioning their prices.  Shutting down an LTD can be tricky if someone objects before liquidation. And it's no longer so easy to close and...
  13. E

    Am i being ripped off?

    Google. EDIT: This might be more difficult than i thought. Often you can review companies on Google, but their company doesn't appear to have the option. So if you any of you guys know of sites where reviews can't be deleted, i'm all ears! :-)
  14. E

    Am i being ripped off?

    No it doesn't make it acceptable. And they will get the online review they deserve upon completion. You need to remember i am between a rock and a hard place. I saw one project in the flesh and spoke to two of their former clients prior to starting the project, both of which were very...
  15. E

    Am i being ripped off?

    I decided to bite the bullet in the end and accept their inflated price. Just too much hassle to coordinate others and sign-off would be tricky too.
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