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RS232 With Long Distance

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Suraj143

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Hi I want to transfer my RS232 data (9600bps) on 150m length.

Whats the hardware method I can use to transfer my data?
 

BeeBop

Active Member
Hi I want to transfer my RS232 data (9600bps) on 150m length.

Whats the hardware method I can use to transfer my data?
Look into rs485; it is differential pair signaling, and will give good noise immunity over that distance. It is also easy to do - use a max485 instead of a max232 driver.
 

Suraj143

Active Member
Hi BeeBop thanks for the input.I have no experience in MAX485.Now I have done RS232 code also I have connected my PIC output to MAX232.

Can I directly connect MAX485 to PIC to transfer long distance?
 

binzer

Member

Suraj143

Active Member
Ok thanks guys for giving the idea of RS422.

I searched but there is no data sheet for RS422.Did you find any data sheet?

The other thing is I'm confuse with "what is the meaning of balance line & unbalance line" in communication.In RS232 I don't know what is that balance or unbalance.
 
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Suraj143

Active Member
Ok I read many articles & got some ideas.

I want to know can I interface MAX485 with MAX232 to send long distance transmission?
 
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