PACIO-400-00 - Bus Coupler 3AAlthough a bus coupler is built in to the PAC, the PACIO Bus Coupler 3A Module serves as abus for remote I/O modules. It converts CAT5e (twisted pair cable) to a low-voltagedifferential signaling (LVDS) E-Bus and also provides the system power required by theremote PACIO modules. At the end of the modular device, the connection between theforward and return lines is automatically closed, retaining EtherCAT protocol through to thelast module.Each Bus Coupler 3A can provide up to 3 Amps on the E-Bus connector to power up to 20individual I/O Modules. The PAC Controller also has an internal Bus Coupler and you canattach approximately 20 modules locally. A Bus Coupler 3A Extender Module is requiredwhen exceeding the 3 Amps and you would like to add additional modules. The figure belowshows how to add the Extender module to the end of the first 20 modules and the BusCoupler to the next 20 modules. Only one Extender module is required in the system, but aBus Coupler is required for each additional 20 modules (or 3 Amps total E-Bus current).Technical data PACIO Bus Coupler 3APart number PACIO-400-00Controller ASIC ET1100Baud Rate 100 Mbit/sCable CAT5Length Of Cable Maximum 100 meters (or 325 feet) between two buscouplersPorts 2x RJ45Power Supply 24 VDC -20% +25%Connector Power Plug 2-pole (43-026590-01)Input Current 50mA and E-Bus power supplyE-Bus Power Supply Maximum 3A (approx. 20 Modules)E-Bus Load 195 mA
