Hi, You can use RS485 repeaters to boost signal integrity and cable length. In theory, there is no limit to the cable length if you use repeaters.
-----Original Message----- Sent: 09 December 2003 14:04 To: Multiple recipients of list CHIPDIR-L Hi all The RS485 is defined to a maximum lenght of 1200m at 400kbps. I don't need 400kbps, but up to 2500m of cable. Is it possible to extend to this lenght with 9600bps? Are there other standards for data transmission? I have two wires (plus power and ground), one master and up to 20 slaves. The maximum distance between two slaves is 500m. A multimaster bus would be nice, but is not a must. The network should also work if the cable is broken (up to the break). With RS485, I would switch the termination with a relais. What else... Oh yes, the system is battery powered and should work fron 25�C to -40�C. Any ideas? Edi Im Hof ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + IH electronic + Phone: ++41 52 320 90 00 + + Edi Im Hof + Fax: ++41 52 320 90 04 + + Doernlerstrasse 1, Sulz + URL: http://www.ihe.ch + + CH-8544 Rickenbach-Attikon + E-Mail: [EMAIL PROTECTED] + + Switzerland + + ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -- Author: Edi Im Hof INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Author: Darren Logan INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
