The computer may be removed after programming, or left connected to recall memories exclusively. As many as 16 units at a time may be daisy-chained. A recessed Default button on the rear panel recalls Memory 1 in case of computer failure. The digital filters are designed to match the previously available analog RPE 228. The translation between the 8 closures and 16 Memories is programmable.
Current settings are also non-volatile.
The RPE 228d features balanced cross-coupled inputs and outputs. Shield ground connections are to the chassis. Rane's Windows-compatible software, called RaneWare, is included at no extra cost, allowing the units to be controlled in real time. Memories may be recalled, copied, and stored. A Site Control Panel is provided with password protection so that all units can recall stored memories without further access.