Tagged Questions

3
votes
2answers
99 views

How good is coaxial cable?

My question relates to the accumulated AC voltage that will appear on the screen of a length of coax: If the cable is properly terminated at one end and fed with data (or any signal) at the other ...
1
vote
1answer
90 views

I2C on FFC or IDE cable - interference?

This is a follow-up question on this answer. I need to communicate with I2C over approximately 10cm and I'd like to use an FFC or IDE cable for that. Earlier, I used an FFC cable to link a segment ...
9
votes
3answers
141 views

Communication among briefcase halves

I'm building a small laptop-ish device in a briefcase. Imagine the green wires aren't there. The LCD half lies somewhat deeper in its case than the keyboard part. For now, testing and programming, ...
6
votes
2answers
3k views

Is CAT5 cable good enough for RS-485 vs “true” RS-485 cable

I have a serial comms project coming up. A number of boards with RS-485 interfaces need to communicate. Date rate is 57600bps and cable length will be less than a few hundred feet. Will shielded ...
3
votes
2answers
317 views

Recommend a Serial to USB cable/converter that works with modern OSes

I'm hacking on a board that has an RS232 interface (via a Max232 chip). My new computer doesn't have a serial port, which leaves me using USB. I actually have a Serial to USB cord already, but it ...