RS485 Remote Readers with Turbo485 polling speed let facilities with RS485 field wiring architecture install access control solutions without replacing existing infrastructure. Readers can be connected at door locations to Dual Serial Interface and eliminate need to run additional cable from field access devices to centralized controller. Products are selectable for 1 or 2 readers and can connect 1 door with 1 reader, 1 door with 2 in/out readers, or 2 doors each with single readers.