LAN Module Satel INT-FI

The INT-FI converter converts and transmits data over fiber-optic cable, providing galvanic isolation between connected devices and high immunity to interference. It is intended for use with keypad and expander communication buses of INTEGRA series control panels, and with the RS-485 bus of the ACCO access control system. The device includes four sockets for two pairs of optical fibres and terminals for connecting signals from up to three communication buses of INTEGRA control panels (one keypad bus and two expander buses) or one RS-485 bus of the ACCO system. By selecting jumper settings on the PCB, the converter can operate in multiple configurations, with the active mode shown by LEDs. Using the appropriate cascade connection extends transmission reach up to a total of 4 km, with a maximum distance of 2 km between two converters.

Advantages

Offers complete galvanic separation to prevent ground loops and protect connected equipment while ensuring stable data transmission via fiber optics. Supports both INTEGRA keypad/expander buses and ACCO RS-485 bus, providing flexible integration with alarm and access control installations. Configurable jumper settings and status LEDs allow straightforward selection and monitoring of operating modes. Four optical connectors enable connection of two fibre pairs and facilitate cascading to extend communication distance.

Suitable for

• Extending communication lines between security control panels and remote keypads/expanders
• Connecting ACCO access control RS-485 bus over fiber-optic infrastructure
• Applications requiring galvanic isolation between control devices
• Installations where immunity to electromagnetic interference is required

Key specifications

• Data transmission medium: single-mode or multi-mode optical fibre (connections for two fibre pairs)
• Interfaces supported: INTEGRA keypad and expander communication buses, ACCO RS-485 bus
• Power supply voltage: 12 V (as indicated in product summary)
• Maximum cascade transmission reach: up to 4 km total; maximum distance between two converters: 2 km
• Indicators: LEDs showing selected operating configuration
• Physical features: four fibre sockets and terminal connectors for communication buses
• Weight: approximately 125 g (as indicated in product summary)

How to use

Mount the INT-FI converter in the installation location and connect the power supply at 12 V. Attach optical fibres to the four available sockets according to the required pairings and connect the communication bus terminals to the INTEGRA keypad/expander bus lines or to the ACCO RS-485 bus, depending on the application. Set the jumpers on the PCB to select the desired operating configuration and verify the selected mode using the LEDs. For extended range, arrange converters in cascade using the fibre connections, ensuring the distance between neighboring converters does not exceed 2 km and the total cascade reach does not exceed 4 km.

Usage recommendations

Use appropriate optical fibre type and quality for the required distance, ensure correct polarity when connecting fibre pairs, and verify jumper positions before powering the device. Observe recommended power supply specifications and follow safety procedures when working with fibre-optic and control wiring.