BUS COUPLER FBA14

RS485 bus connector for wired bus connections.

• Modular unit for rail mounting according to DIN-EN 60715 TH35 standard.
• 1 module = width 18mm, depth 58mm.
• Connection and power supply are made using jumpers.
• The bus connector FBA14 can connect different bus segments and provide power supply.
• Bus segments located in different DIN rails or different units are connected together using one FBA14 and a 4-wire shielded bus cable, e.g., KLMA cable. The total combined length of all connection cables must not exceed 100 meters. A 9mm wide termination resistor must be connected to the last device (supplied with FAM14 or FTS14KS).
• The bus connector can be placed at any position on the 14-series device rail.
• The four bus lines must be connected to the two FBA14 connectors: -12V, +12V, RSA, and RSB. The factory-installed jumper on the lower connectors <- +12V -> must remain in place. This jumper must also remain installed if the power supply WNT15-12VDC/24W is connected to the +12V and -12V connectors to prevent excessive power supply.
• If the power supply of the FAM14 or FTS14KS connection power source is insufficient to supply power to the entire RS485 bus, the connection power source WNT15-12VDC/24W can be connected to the -12V and +12V connectors of the bus connector to increase capacity. In this case, the jumper must be removed.
• Devices on the left side of the bus connector receive power from the FAM14 or FTS14KS device; devices on the right side receive power from the connection power source.

This product description is an automated translation of the original Finnish description.