描述： ME745A-R2 runs up to 38.4 kbps as far as 2.5 miles (4 km). ME771A-R2–ME773A-R2 run up to 115.2 kbps as far as 3 miles (4.8 km). Point-to-point or multipoint applications. Carrier-control mode for hardware-controlled devices. Operates on 2-wire half-duplex or 4-wire half- or full-duplex. 规格： BLACK BOX? Multipoint Mini Drivers handle both point-to-point or multipoint applications. In multipoint mode, you can link up to 50 devices to an asynchronous host. Each line driver features a selectable carrier-control mode—perfect for hardware-controlled devices. Choose a 5-screw terminal, an RJ-11, or an RJ-45 connection on the line side. All Multipoint Mini Drivers work with 2- or 4-wire twisted-pair cable.
