The FAAC 787725 interface board is an accessory designed for enhancing the flexibility of FAAC RP / RP2 radio receivers. By attaching this relay interface board to a receiver with a 5-pin Molex plug, you gain external screw terminal outputs of the relay (normally controlled internally by the receiver). This allows for easier integration of the receiver with other gate control panels, alarms, access control systems, or any application requiring conventional screw-terminal wiring rather than proprietary plugs. Given compatibility across FAAC’s 433?MHz and 868?MHz radio versions, this board is versatile and supports a wide range of FAAC installations. The compact board (85×25×15 mm) is small enough to fit into most receiver housings or control boxes. It is ideal for installers who need to adapt FAAC radio receivers for retrofit projects or custom control panel wiring.
Verify compatibility: Confirm that your FAAC radio receiver uses a 5-pin Molex “quick-plug” connector (RP / RP2 series), and check whether the frequency is either 433?MHz or 868?MHz. This board works with both.
Power off equipment before installation to avoid electrical shorts or damage.
Plug in board: Connect the FAAC 787725 interface board into the 5-pin Molex connector on the receiver. Ensure the connector seats firmly.
Wire screw terminals: Once the interface board is in place, use the screw terminal output block to wire out the relay contacts. These can be connected to gate control inputs, alarm panels, or other external modules.
Test relay output: Using a remote control or input to the receiver, activate the relay via the radio. Check that the relay closes/open as expected through the screw terminals, and that whatever device you are driving responds.
Mounting: Secure the interface board in a place where it is protected from moisture, vibration, and mechanical stress. The size is small (85×25×15 mm), but make sure there is enough clearance.
Ensure cable routing and strain relief for the wires on the screw-terminals, so connections aren’t stressed during normal use.
Using the interface board must not interfere with the safety functions of your gate / automation system. Ensure that external devices connected via the relay are compatible and that safety loops, photocells, etc. still function.
Because this unit adapts the relay output, make sure the voltage and current of the load connected via the relay terminals do not exceed FAAC’s specifications for the receiver/relay. Overloading can damage contacts or void warranty.
The board itself is sold with a 2-year warranty by many FAAC distributors. Install in accordance with instructions to keep warranty valid.
Use short, high-quality wiring to minimize voltage drop and interference, especially in longer runs.
When retrofitting, keep the Molex + interface board well insulated and safe from moisture; use enclosures if needed.
Label wires from the screw terminals so it’s clear which external device they control (e.g. “gate open,” “light,” etc.).
Periodically inspect screw terminal connections for loosening over time (vibration or weather may loosen).
If using with outdoor gate controllers, ensure board is mounted in a weather-proof enclosure or interior area.
