Translations:Manuals:MBPlusFblV52:Radio System/7/en

Telemetry receivers Spektrum® SRXL2 / JETI EXBUS

Spektrum® SRXL2 receivers are available in different forms. There exist receivers with standard servo connectors as well as receivers with a special 4-wire connector. All of these receivers must be connected to the pin board at the side of MICROBEAST PLUS.

Also when you want to use a JETI receiver with EXBUS connection for telemtry support, you must connect the receiver to the side port of MICROBEAST PLUS as shown below.

When using a speed controller with BEC, the power will be distributed from [CH5] or [DI1] input to the receiver. Alternatively or additionally you can connect a power supply/second BEC wire/buffering battery to the [SYS] port. Feeding power directly into the receiver is not possible as the voltage connector on MICROBEAST PLUS side is only oneway!


Receivers with standard connector

To connect a receiver with standard servo connectors, i.e. the SPEKTRUM® AR6610T, AR8020T or JETI EXBUS receivers, you need an adapter from servo plug to JST-ZH type. We offer a special adapter if needed - order nr. BXA76403. Also you can use our governor sensor adapter BXA76401 but this requires to modify the wiring layout as shown below! Voltage is the first pin from the left, signal is connected at the third pin from the left. Minus is the second pin from the front/right.

SRXL2 receiver with standard servo connector and adapter

SRXL2 satellite receivers

To connect a SRXL2 receiver like SPM4650/SPM4651T it is necessary to INTERCHANGE THE WIRES of the supplied 4-pin receiver connector. In this configuration you can directly plug in the receiver without the need for an extra adapter. But be very careful! Make sure plus and minus are placed properly! The signal wire is connected at the fourth pin from the front/right, minus ist second pin from the front/right, voltage (+3.3V) is the first pin from the front/right. On satellite side the signal output is on the outer side, the pin next to it is not used, then we have voltage and on the inner side comes minus.

SRXL2 satellite receiver with modified satellite connector	Modified 4-pin SRXL connector

Never connect the 4-pin receiver connector to MICROBEAST PLUS without modification and in wrong polarity! This will damage your receiver immediately! Check polarity at least twice before connecting the receiver to MICROBEAST PLUS. It is up to you to make sure polarity is correct. We do not assume any liability in case you do it wrong.