ANTENNA FEM

Wireless reception antenna module for RS485 bus. Standby power consumption is only 0.5 watts. SMA screw connection for the small antenna supplied with the unit. The reception area can be extended by placing a larger wireless antenna, FA250 (28 140 15), FA200 (28 140 44), or FAG55E (28 263 68 & 28 263 69), in an optimal location. Housing dimensions: length 78 mm, width 40 mm, depth 22 mm. - Three small, plastic-enclosed wireless FEM reception antenna modules, which can be installed anywhere in the building in addition to the FAM14 (28 140 22) and connected to the main bus via the FGW14 (28 140 33) interface module using a 4-wire shielded cable (e.g., shielded KLMA cable). - Connect the FEM terminals RSA/RSB to the FGW14 terminals RSA2/RSB2. - Also connect the FEM terminals +12V/GND to the FGW14 terminals +12V/GND. - Wiring for multiple FEMs must be done in a daisy-chain configuration as specified for RS485 bus systems. - Star wiring with one cable per FEM is not permitted. - In each of the three wireless reception modules, the jumper must be set to a different position. - To do this, carefully open the housing from the narrow side using a screwdriver with a maximum width of 6.5 mm and a maximum thickness of 1.5 mm. This product description is an automated translation of the original Finnish description.