Probably more than that in a low baud rate. Funny N. Au Group Electronics, http://www.AuElectronics.com http://www.AuElectronics.com/products http://augroups.blogspot.com/ ________________________________ From: Vasile Surducan To: Microcontroller discussion list - Public. Sent: Tuesday, September 22, 2009 12:17:43 AM Subject: Re: [EE] CAT5E pairing with RS485 On 9/11/09, Olin Lathrop wrote: > David Duffy (AVD) wrote: > > I am planning to deploy a network of (approx 70) remote devices via > > CAT5E cabling. It will carry 24Vdc as well as RS485 data at a low > > speed (2400 baud at a guess). > > I don't know what your constraints are, but RS-485 is so 1990s. Nowadays > CAN is a better alternative in most cases. You get the low level collision > detection, retry, and message checksum validation all handled transparently > by the silicon in the microcontroller. You have to do these things manually > in the firmware with RS-485. CAN works at 1km ? Vasile -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist