FT20-REPEATER – Nokeval
The FT20 is a radio data receiver and repeater for the Nokeval MTR, FTR and KMR series wireless transmitters.
The FT20-REPEATER means the device is pre-set as repeater and is supplied with a power supply. FT20 receives and buffers the data packets that wireless transmitters have sent. It can also relay the data packets so that large areas can be covered using only one receiver. It automatically recognizes the types of the transmitters, so different kinds of transmitters can be used simultaneously. Transmitters can also have different transmission intervals.
FT20 uses licensefree 433.92 MHz frequency band (ISM) so it can be freely used, for example, almost in whole Europe. FT20 is housed in a watertight (IP 66) and impact resistant plastic enclosure. The joint between the two modules is sealed with two rubber O-rings. The receiver is connected to a computer using RS-485 bus and it requires e.g. PromoLog data acquisition application that reads the data from the device. Nokeval SCL or Modbus RTU protocol is used for data transmission between the receiver and the computer. Multiple receivers can be connected in parallel to an RS-485 bus to increase the coverage area. MAX-FT20 has one diagnostic LED and it requires 8..30 VDC power supply.
Bus protocol: Nokeval SCL and Modbus RTU
Bus interface: RS-485
Baud rates: 300, 600,1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 and 230400
Supply voltage: 24 VDC: 8...30 VDC
Current consumption: max. 50 mA
Maximum ambient temperature: 60°C
Minimum ambient temperature: -30°C
Case material: plastic (PC and ABC+PC)
Installation: wall mount
Protection class: IP66