Product Info

B&R wireless board "RFM-2-NF"

Standard Documentation for Radio Equipment Certification

Schematics

Description Module RFM-2-NF_1_Version 1.4.docx

Tuesday, April 9, 2019 2:25:00

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4.4 Schematics

N/A

4.5 Part list / BOM

See section 4.1 (main components)

5 Host interface description

5.1 Hardware

The host interface provides isolated power supply 5 VDC ±5%, power consumption max. 500 mA (typi-

cally 120 mA with RF field on) and the data exchange interface lines (USB protocol) to a B&R Industrial

PC. Non-standardized cable between RFM-2-NF and PC.

5.2 Software

The USB-software interface and its corresponding part inside the firmware of the chipset is only for data

exchange

. It can’t be used to change any settings that may affect the properties and functionality of

the radio equipment. The firmware image on the short range device is within the scope of delivery of the

module manufacturer. Standard windows drivers for “USB Serial Device” for Ports (COM & LPT) are

used. Buffered modulation/data inputs inside the firmware to avoid excessive data rates or over-modu-

lation.

End-user can’t change the settings of the radio equipment. Manufacturers may use this interface dur-

ing e.g. the assembly process for loading firmware or making settings.

6 Air interface description

The air interface can’t be used to change any settings that may affect the properties and functionality of the

radio equipment because the system do not accept any type of configuration cards.