Hi everyone I´m looking for upgrade a CP40FT to CP60FT. Actually, the CP40FT (attach: old_system.gif) have some remote enclosures with Fieldbus Isolators Modules (FBI) and about 12 FBMs at each one. The questions are: 1. could I maintain the existent FBI (as attach: new_system.gif)? 2. should i change all existent FBI to FBI10E? 3. should i change the existent Twisted pair shielding cable between the enclosures to 50 ohm coaxial cable? Thanks for any suggestion Bismarck Albán Tecniequipos S.A. _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave