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I have a programming PC connected to a master control via a 3 wire RS-232 cable connection. In my never ending desire to clean up my COMM room, I got some 2 pair Cat 3 cable, 2 connectors, and soldered up the connection. Plug it in and NO WORK. I recheck my pins, wire colors, all OK I have a...

I have a program working, to send a single charactor out the serial port under QBASIC. I send the charactor, then wait, then if no response is found in the rx buffer, I send again, max of three tries, then onto next charactor. My loop is simply "for adres = 1 to 10" then the variable adres is...

I am building a in house network, using Microchip PICs connected via a 4 wire RS 485 network to a master PC ( Rs 232 port with converter to RS485 ). I plan on using CAT-5 cable, interconnecting up to 32 devices thru the plant. Baud rate is 9600 and no strong electromechanical issues. Im using...

Hi all : I am building a PC based system to talk to Microchip PICS via the RS232 ( converted to rs485) port. I have the software working nice in hyperterm and the PICS, but my problem is this : I want the PC to poll the various address's of the PICS, as in a loop to out the address, and the...

I currently have a dial up service, and the norm is 21600 for connect and VERY slow! Even when it says 28800 it is still slow: My question for the group is this : What options are out there for faster connection with a reasonable price? SPRINT website says DSL not available in my area...

I have run into some crimp on plugs that have been gining me some trouble, thought I would share: No idea on the maker, but my Ideal crimper, works almost all the time....but once in a while, I get a cable that fails, missing one pair. The problem is the little shims between the plastic pins...

After alot of thought and trying to reason out some logic, I have no answer to one simple point: Whats the big deal about deciding between the 568A and B??? I know via the pinout they are swapping the orange and brown pairs, but whats the big deal? As long as both ends are the same, I dont see...

OK, I have the opportunity to clean up a major mess in my comm room, and want to make sure I understand my T1 cables, from Dmarc to my router case..... If I run a CAT5 cable, using 568B standard, RJ45 etc on both ends, that should work!?!?!? I have the pinout as 1 - ring, 2 - tip 3 - rx gnd 4...

I have been asked at work to teach a refresher for my fellow techs on CAT 5, been several years since my class, and I cant locate my notebook and handout info I rX....and I dont trust my memory on some details...( old age? ) Anyone recommend a site that allows downloads of the info I could use...

Hello group: I know somewhere, someone has decided upon a standard color code scheme for the jackets of CAT5. I maintain a data and telcom system that uses all CAT5, we ended up with white, blue, and some red..... Anyone have a list, like the old AT&T standard days? Also, I know there is also...