ISP Information:
A processor instruction that can perform operations across multiple data instructions. So, instead of saying "Add A,B" several times to add two groups of numbers, you may say "Add Row A, Row B" or something to that effect. Instructions of this nature are often associated with 3D graphics and multimedia.
ISP Glossary:
Single Instruction Multiple Data - On Sat, 06 Sep 2003 22:18:29 -0400, unspammable-73729@workbench.netwrote: Reading Lindsay Pallickal's message about the various wiring color codes reminded me of something I've been hoping to locate for an upcoming project, with no success. About a month from now I may need to install some jacks for 4-line phones, which I am told use the usual trick of putting line 1 and 2 on one jack, and line 3 and 4 on the other. Anyway what I'd like to find is a dual surface mount phone jack -- by that I mean a single unit that contains two jacks that can be wired individually, for example the uppermost one for lines 1 and 2, and the lowermost one for lines 3 and 4. It's a must that the jacks have screw terminals, or failing that, the kind of terminals where you can do a satisfactory job of pushing down the wire by using two screwdrivers.Of course there is: http://www.trynci.com/cat/telco33.htm . I guessyou would get what you pay for in this case. And while on the subject -- let's say that at the point where the four lines come in, I want to break them out and distribute them to half a dozen jacks, each home run back to the common entrance point. Is there an inexpensive way to do this that uses SCREW TERMINALS (I have never used a punch-down tool, and don't intend to get one for this one project)? Is there a particular product I should be looking for?Yes, a punch down tool. If you truly need FOUR lines, you need to buydouble hardware to get two pairs of jacks. For the sake of anargument, get yourself those Network Interface Devices from Rat-Shackthat break out a modular plug into the 4 colored wires. You'll needtwo of them for 4 lines and you probably ought to get two for each twocables you run. You also need two 5-1 modular adapters to plug your 3NID's into each one. While you're out buying the hardware, I've useda $12 block and a $25 punch down tool to finish the job.This 66 block is 10 inches by 4 inches and I've used a lot less space.You make the call and happy soldering.Carl Navarro Before any of you purists start attacking me, I'll just say that this is for a residence (of a relative), not a business, and if the proposed solution costs too much (or does not use SCREW TERMINALS) I'll just skip it, and at the meet point I'll just twist all the wires of like colors together and flow solder over them, then after the solder cools I'll dip each exposed joint into the open end of a tube of 100% silicone rubber caulk (the clear kind) for insulation. I have done that in the past and have never had a problem with the soldered joints, but in my dreams there should be a neater way to do this (so you can temporarily disconnect an individual jack without having to physically cut the wires). [TELECOM Digest Editor's Note: You might want to check out the catalog published by Mike Sandman ( http://sandman.com ) or chat with Mike and see what he can do to help you. Mike has all sorts of obscure and not so obscure phone jacks, plugs, wiring combinations, etc. His email is mike@sandman.com and the office phone is 630-980-7710. PAT]
|
