FrSky XJT User Manual

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www.frskyͲrc.com
05/02/13
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InstructionManualforFrSkyXJTModule
Introduction
ThankyouforpurchasingFrSkyXJTtelemetrymodule.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

Specifications
OperatingVoltageRange:3.7~15V
OperatingCurrent:180mA(@5V),120mA(@12V)
OutputPower:ч100mW
ModuleSlot:JR/GraupnerType
Modulations:PXXorCPPM(autoͲdetected)
Modes:D8,D16orLR12(selectable)
TelemetryInterface:SmartPort,RS232SerialPort
UpgradeInterface:SmartPort,RS232SerialPort
What’sNew!
x TwoautoͲdetectedmodulationsofPXX(modeselection,bind,modelmatch,rangecheck,failsafe,etc.onradio
side)orCPPM.
x ThreeselectablemodesofD8(existing8chtwoͲway),D16(new16chtwoͲwayfullduplextransmission)andLR12
(new12choneͲway,approx.threetimesrangeofcurrent
V8&DserieswhenpairingwithnewLRseriesreceiv ers,suchas
L9R).
x SmartPortenabled,realizingtwoͲwayfullduplextransmission.
x Detectthemoduleantenna’sworkingstatusandgivesoundwarningsifthemoduleantennaisbrokenordoesnot
haveintactcontact,etc.
x Superlowerlatency(approx.1/3ofcurrentsystems)andhigherprecision(transmitter’shardwareandsoftware
supportrequired,suchasFrSkytransmitters).

FrSky XJT Specifications

General

Compatibility	D8, D16, LR12 receivers
Telemetry	Yes
Firmware Upgrade	Yes
Operating Mode	D16, D8, LR12
Channels	16 (D16)
RF Power	16dBm (EU), 20dBm (non-EU)

Summary

FrSky XJT Module Introduction

FrSky XJT Module Overview and Features

Smart Port

Describes products enabled with Smart Port for data transmission.

RS232 Serial Port

Details usage for telemetry display and firmware upgrades.

LED Indication

Explains the meaning of Green and Red LED status lights.

Mode and Compatibility

Outlines XJT module modes and compatible receivers.

FrSky XJT Module Operations

Binding Procedure

Step-by-step guide for associating receivers with the transmitter module.

Range Check

Procedure for performing a pre-flight range check to ensure signal reliability.

Safe Flying Distance

Information on Received Signal Strength Indication (RSSI) and warning alarms.

FrSky X8R Receiver Introduction

FrSky X8R Receiver Overview

Smart Port

Describes the Smart Port interface for data transmission.

F/S Button LED

Explains the LED status indicators on the receiver.

SBUS Port

Details the SBUS output for channels 1-16.

Conventional Channel Outputs

Describes standard channel outputs CH1-CH8.

FrSky X8R Receiver Specifications and Features

Specifications

Lists technical specifications of the X8R receiver.

What's New!

Highlights new features of the X8R receiver.

FrSky X8R Receiver Operations

Binding Procedure

Steps to bind the X8R receiver to a transmitter module.

Range Check

Procedure for performing a pre-flight range check.

Failsafe

How to set and disable failsafe positions for the receiver.

FrSky L9R Receiver Introduction

FrSky L9R Receiver Overview

RSSI Output

Describes the RSSI analog voltage output.

F/S Button LED

Explains the LED status indicators on the receiver.

SBUS Port

Details the SBUS output for channels 1-12.

Conventional Channel Outputs

Describes standard channel outputs CH1-CH8 and CH9.

FrSky L9R Receiver Specifications and Features

Specifications

Lists technical specifications of the L9R receiver.

What's New!

Highlights new features of the L9R receiver.

FrSky L9R Receiver Operations

Binding Procedure

Steps to bind the L9R receiver to a transmitter module.

Range Check

Procedure for performing a pre-flight range check.

Failsafe

How to set and disable failsafe positions for the receiver.