Cabling

Oct. 15th, 2005 11:37 pm
crschmidt: (Default)
[personal profile] crschmidt
Purchases:
* WRT54G -- which will be going back.
* 2 4-port Audio-video switches: one for the stereo, upstairs, and one for the video games, downstairs.
* 2 20 foot Audio-only cables and a set of female-to-female connectors
* Replacement DVI->S-Video/RCA cable for the mac mini
* Replacement Mini-DVI to VGA cable -- which turned out to be the wrong one somehow? This'll be going back too. The mini-dvi plug does not match the one on my powerbook at all.
* 2 12 foot Video+Audio cables with 2 female-to-female connectors.
* 1 6 foot Gold Plated Component video cable (this was my real splurge)

Component video installation went seamlessly -- although I did break the DVD player slightly, but in the process learned that it's ridiculously easy to fix. That $20 charge for fixing it whenever julie broke it was definitely overpriced: It's a three-screw job to take the cover off and the DVDs are right there. (I may use it as a lesson for the kids on how these things work: looking at a spinning DVD might be cool.) Not only that, but the video quality is significantly better than with the composite video cable, something I never really expected to happen - it was mostly just a goal I've had since I first got a DVD player to be able to hook up component and see if there was a difference. (And it was confirmed by everyone who saw it that the colors were brighter, so it's not just a biased viewpoint because I spent $30 on it.)

Set up cables for the mac mini. No problem -- now hooked up to video 1 on the TV so we can watch movies from zeus without much effort, which is great.

Set up cables to desk and next to bed, plugged in turntable, got that all set up so we can just hit a button to choose. Need to move speakers around stuff into better positions.

Then I spent a lot of hours doing something really useless. The WRT54G is known as being a Linux-powered router, one that's easy to hack with an alternate firmware.

Yeah, right.

That used to be the case with the last one I bought, so I figured another one would work well. Little did I know that recently, the WRT54G firmware hsa been built to prevent the uploading of new versions to the router unless they're Linksys firmware, so you can no longer extend the capabilities of your router (for example, to support connecting to another Wireless Router for internet as a client, rather than acting as an AP.) After dicking with it and following every trick on the net to try and get it to work (and failing), I tried just installing a firmware on the old router, and succeeded.

However, once I did this, and brought the router downstairs (where it was to act as a wireless bridge), it still wasn't working. Connections failing, only talking to other machines when there was already an incoming connection, etc. I'm sure that some work could be done on it, but after spending 4 hours on it tonight, I'm done. I'm taking it back tomorrow, getting something small and designed to just connect to a wireless AP and be done. I'll also pick up a higher gain wireless antenna, the one thing I meant to get today but failed. I'll also pick up some connectors to go from the 4-way splits to the devices they're connecting to, which I also didn't think about. Overall cost should be about the same -- I'm really frustrated with Linksys for this crap though. I expected better of them.

Jess and I had dinner at California Pizza Kitchen: I had the Jambalaya, which was absolutely incredible. I also had my first ever drink-in-a-restaurant: Several times before I've thought about it, but never had my license or was taking public transportation, so it's simply never happened.

(no subject)

Date: 2005-10-16 05:24 am (UTC)
ewen: (Default)
From: [personal profile] ewen
FWIW:

- Component video should always be crisper than composite video, because the composite signal is effectively two syncs (horizontal and vertical), plus three colour channels (green, red-diff, blue-diff) all munged into one, which the other end has to try to figure out. Suffice to say this is suboptimal. If the component video wasn't crisper, then there'd be something seriously wrong with the equipment. (Eg, beware that some video switches have only a composite backplane, and hence munge everything to composite before switching, and demunge it again to send out. The result there is also... suboptimal.) The difference between S-Video and Component Video is much smaller, at least for short cable runs.

- Regarding the WRT54G, there've been four hardware revisions of these now. The first couple were relatively easy to hack, but the last couple have been made progressively harder to hack (including firmware fixes for the backdoors being used to get in). The OpenWRT project (which is very close to an actual release -- RC3 at present) has done fairly well at coping with the wide range of hardware, and explaining what is in each. And they've also got a pretty nice build system now. As well as what seems to be a "set one flag to use as a wireless bridge to another LAN" option added pretty recently.

But if you just want a wireless bridge there's probably something cheaper that'll do it out of the box. And WPA is close to being secure enough for a non-critical link (I never did trust WEP for security, and always used a VPN or something over it).

Linksys, despite being owned by Cisco, is pretty much on par with many of the other "consumer electronics" companies -- ie, most of the stuff mostly works, but less so when you try to push it to do something "unusual." The reusability with something like OpenWRT is the sole reason I'd buy them over any of the other consumer items, so it's a shame that they're actively trying to defeat that reuse.

Ewen

(no subject)

Date: 2005-10-16 11:39 am (UTC)
From: [identity profile] idigital.livejournal.com
If you're going to buy a WRT54G, get one off eBay. Preferably a V2. I got my V2 about 9 months ago. I'm currently using the Talisman Freeman firmware, and it's wonderful. I cannot recommend these routers enough. Just don't get anything newer than a V3.

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