SRXL - Serial Receiver Link protocol

SRXL is an open data transfer protocol which allows to transport control data from a rc receiver to another device like a flybarless system by only using one single line. This protocol has been established in 2011 by BEASTX due to the idea to create a freely available and unified protocol that manufacturers can easily implement to their receivers and devices which process receiver data. The protocol does not describe an exact definition of how the data must be processed. It only describes a framework in which receiver data can be packed. Each manufacturer can have his own ID, which must be attached to the beginning of each data set, so that the device using this data can correctly identify and process the payload of the dataset. Several manufacturers of RC systems already implemented this protocol to their receivers and MICROBEAST can process the data of these receivers. The advantage is that the data transfer is very fast compared to standard transmission by single wires for each control function. Additionaly you can transfer much more channels at one time and freely distribute the usage of these channels to different control functions. Due to the unique identifier it even is possible to automatically adapt the function allocation specifically to the standard that is used by each radio brand, so that the usage of SRXL is almost "Plug&Play", indepent of the specific type of radio system that is used. Unfortunately some radio systems manufacturers did not fully implement the SRXL standard but only copied the protocol from a different brand of radio systems to be compatible with already exisiting devices. Although this is not a bad idea at all it has the disadvantage that these manufacturers loose the additional features and advantages that come with the unique manufacturer's ID. Additionally when the original manufacturer make changes to his origin protocol in future these systems may work incorrect. So by now it works OK, but we must forcefully point out that this is not the idea behind SRXL!

The following receiver systems/receiver types support SRXL and work in combination with MICROBEAST and MICROBEAST plus:

Manufacturer	Receivers
BEASTX	All BEASTXRX receivers
MULTIPLEX	All receivers with M-Link data port (firmware update may be necessary)
GRAUPNER/SJ HOTT	All HOTT receivers with SUMD output

The follwing receiver systems are compatible with SRXL as they copied the SRXL protocol as specified by MULTIPLEX. These receivers are often called to be "UDI" compatible which is a designation introduced by a different manufacturer of flybarless systems, but which is nothing different than (MULTIPLEX) SRXL. So these receivers can work with MICROBEAST and MICROBEAST plus without issues, as they will be recognized as MULTIPLEX receiver.

Manufacturer	Receivers
JR propo	JR X-Bus (select X-Bus2 output in the radio)
Jeti	Receivers with Jeti UDI output

The following manufacturer(s) already implemented the SRXL protocol in some receivers. These will be supported with the next update of MICROBEAST and MICROBEAST plus:

Manufacturer	Receivers
SPEKTRUM RC	AR9020 receiver with SRXL port