Fermax 2-Way DUOX Regenerator for Signal Extension

Fermax F-3253 2-Way DUOX Regenerator for Extended Installations

The Fermax F-3253 is a 2-way DUOX regenerator that insulates, distributes, regenerates and powers risers in DUOX door entry installations. It provides fault isolation between risers and entrance panels, protecting against bus short circuits and data failures. Each output section is independently isolated, so a fault on one riser does not affect the other.

The regenerator amplifies data signals in both directions but does not pass power between sections. Each side of the regenerator requires its own filter and power supply unit. Up to 5 regenerator devices can be cascaded between different DUOX regenerator models.

Key Features

• 1 input and 2 isolated outputs for riser distribution
• Signal regeneration in both directions
• Fault isolation per riser — short circuit on one output does not affect the rest
• Two operating modes via SW1: risers only or risers plus panels
• Line adaptation switch (SW2) for bus termination
• Red PWR LEDs for power status per trunk and input
• Green DATA LEDs for data presence per trunk
• Up to 5 devices in cascade
• DIN rail or screw mounting

Technical Specifications

• Power supply: 18-24 Vdc
• Current draw: 145 mA
• Operating temperature: -5 deg C to +40 deg C
• Minimum input data signal (no ripple): 1 Vp
• Maximum terminals per trunk: 20 (depending on cable type)
• Maximum DC current per riser at startup: 1 A
• Inputs: 1
• Outputs: 2 (B1, B2)
• Maximum cascade devices: 5
• Mounting: DIN rail or bolt fixing

Dimensions

• 86 x 89 x 26 mm (W x H x D)