Operating Instructions RolloPort S2 RP-S2-700N F. Tepaße Updated November 15, 2023 08:44 Follow Download PDF Related articles Operating Instructions RolloPort SX5 DuoFern RP-SX5DF-900N-3 How many hand-held transmitters can be registered to the RolloPort? The RolloPort S4 no longer responds to the pushbutton and hand-held transmitter. Only the lighting flashes several times. No motor movement. Reset addZ illuminant. How can the addZ illuminants be reset to the delivery state? What is the range of the DuoFern system? Are there repeaters for the DuoFern system?