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                                                                                            FrSky Electronic Co., Ltd
                 Website:www.frsky-rc.com                      E-mail:[email protected]                       Technical Support: [email protected] 

                                                                                            FrSky Electronic Co., Ltd
                 Website:www.frsky-rc.com                      E-mail: [email protected]                       Technical Support: [email protected] 

Introduction

www.frsky-rc.com

www.frsky-rc.com

FrSky 2.4GHz ACCST X8R Manual

Range Check

A pre-flight range check should be done before each flying session. Reflections from nearby metal fences, 

concrete buildings or tress can cause loss of signal both during range check and during the flight. Follow the 

steps below to perform the range check.

1.   Place the model at least 60cm (two feet) above non-metal contaminated ground (e.g. on a wooden bench).

2.   The receiver antennas should be separated in the model, and do not touch the ground.

3.   The module antenna should be in a vertical position.

4.   Turn on the transmitter and the receiver, press the F/S button on the XJT module for 4 seconds to enter 

range check mode, the RED LED will be off, GREEN LED will flash rapidly. The effective distance will be 

decreased to 1/30 (at least 30m).

5.   Walk away from the model while simultaneously operating the controls on the transmitter to confirm all 

controls’ normal operation.

6.   Press the F/S button on the XJT module for 1~2 seconds to exit range check mode, RED LED will be back 

on, indicating normal operation is back.

Failsafe

Failsafe is a useful feature in which all controls move to a preset position whenever the control signal is lost for 

a period of time. X8R supports failsafe function for all channels. Follow the steps below to set failsafe positions 

for each channel:

1.   Bind the receiver first and turn on both the transmitter and the receiver;

2.   Move the controls to the desired failsafe position for all channels;

3.   Press briefly the F/S button on the receiver (less than 1 second). The Green LED will flash twice, indicating 

the failsafe position has been set in the receiver.

To disable the failsafe function, re-bind the receiver.

Failsafe is recommended to set when system is firstly used, or receiver has been re-bound. Follow steps below 

to set failsafe.

Option-1.How to set failsafe to a user-determined state on lost signal:

1)   Bind the receiver to the transmitter module first and turn on both the transmitter and the receiver;

2)   Move the controls to desired failsafe position for all channels;

3)   Press briefly the F/S button on the receiver and you are done.

Option-2. How to set failsafe for no pulses on lost signal:

1)   Turn off the transmitter, power on the receiver, and then press briefly the F/S button on the receiver.

Note: If failsafe is not set, failsafe default will hold last position before signal is lost. In this case, there 

          exists risk that your model will fly away or cause injury. 

Specifications

Binding Procedure

Binding is the process of uniquely associating a particular receiver to a transmitter module. A transmitter module 

can be bound to multiple receivers (not to be used simultaneously). A receiver can only be bound to one 

transmitter module.

Follow the steps below to finish the binding procedure.

1.   Turn on the transmitter while holding the F/S button on the module (please refer to the module instruction 

manual for switch positions). Release the button. The RED LED on the XJT module will flash, indicating the 

transmitter is ready to bind to the receiver.

2.   Set X8R receiver in bind mode 

(see below chart for details)

, The RED LED on the receiver will flash, 

indicating the binding process is completed.

3.   Turn off both the transmitter and the receiver.

4.   Turn on the transmitter and connect the battery. The GREEN LED on the receiver indicates the receiver is 

receiving commands from the transmitter. The receiver/transmitter module binding will not have to be repeated, 

unless one of the two is replaced. 

What’s New!

       

More number of channels: 1~8ch from conventional channel outputs, 1~16ch from SBUS port,

                                                  or combine two X8R to become a 16 channels receiver.

       Parallel two X8R to become a 16 channel receiver.

       With RSSI PWM output (0~3.3V)

       Smart Port enabled, realizing two-way full duplex transmission. 

Thank you for purchasing FrSky X8R 8/16ch full duplex telemetry receiver.In order to fully enjoy the benefits of 

this system, please read the instruction manual carefully and set up the device as described below.

Overview

  

Green LED

ON

Flashing

OFF

Flash Twice

Red LED

Flashing

OFF

Flashing

OFF

Status

Binding

Normal

Signal Lost

Failsafe Set

Dimension: 46.47×26.78×14.12mm (L × W × H)

Weight: 16.6g

Number of Channels: 16CH (1~8ch from conventional channel outputs, 1~16ch from SBUS port

                                               or combine two X8R to become a 16 channels receiver)

With RSSI PWM output (0~3.3V)

Operating Voltage Range: 4.0~10V

Operating Current: 100mA@5V

Operating Range: full range (>1.5km)

Firmware Upgradeable

Compatibility: FrSky DFT/DJT/DHT/DHT-U in D_mode

                       FrSky Taranis X9D Plus/XJT in D8 mode

                       FrSky Taranis X9D Plus/XJT in D16 mode

                       X8R-EU version only works with FrSky Taranis X9D Plus-EU version/XJT-EU version in D16-EU 

                       mode.

     Note: After binding procedure is completed, recycle the power and check if the receiver is really under 

               control by linked transmitter.

Mode of X8R

Telemetry

Channel Output

Jumped before Bind

(signal pins)

F/S Button

Mode 2(D16)
Mode 3(D16)

Mode 4(D16)
Mode 5(D16)

√ 

√ 

√ 

×
×

CH1~CH8

CH7&CH8

CH3&CH4
CH1&CH2

CH1&CH2, CH3&CH4

CH1~CH8

CH9~CH16

CH9~CH16

CH1~CH8

No Jumper

connect the battery to any available

channel output (no need to hold the 

F/S button on X8R)

connect the battery to any available

channel output while holding the F/S

button on X8R

For more details, please check the complete manual for X8R from www.frsky-rc.com - Download -Manual.

Should you have other questions, please send e-mails to FrSky technical support [email protected].

Receiver Mode and Binding Operation:

Mode 1(D8)

Receiver Mode select & Bind Operation

When combine two X8R to become a 16CH receiver, you need to disable telemetry on either one of the 

two X8R’s as above chart.

X8R-EU version only works with FrSky Taranis X9D Plus-EU version/XJT-EU version in D16-EU mode.

PORT

                    Smart Port (S. Port) is a signal wire full duplex digital transmission interface developed by FrSky 

                  Electronic Co., Ltd. All products enabled with Smart Port (including XJT module, X8R receiver, 

new hub-less sensors, new Smart Dashboard,etc), serial port user data and other user input/ output devices 

can be connected without limitations for numbers or sequences at a high transmission speed.

Smart Port

SBUS Port

(CH1-CH16)

Conventional Channel

Outputs (CH1-CH8)

 RSSI Outport

F/S Button

LED

Please be attention that the Smart Port Protocol is only running in D16 mode.

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