1M23N17499

R7108SB◆ FASSTest-2.4GHz Bidirectional Communication System / FASST(Multi-ch,7ch) -2.4GHz◆ S.BUS2 / S.BUS Port and 8 Channels for Conventional System ReceiverThank you for purchasing a Futaba R7108SB FASSTest-2.4GHz compatible receiver. The R7108SB receiver features bi-directional communication with a FASSTest
Futaba transmitter using the S.BUS2 port. Using the S.BUS2 port an impressive array of telemetry sensors may be utilized. It also includes both standard PWM outputports (1-8ch) and S.BUS output ports. The R7108SB can also be switched to the FASST(Multi-ch/7-ch) System.

● Applicable systems: Futaba FASSTest-2.4GHz / FASST (Multi-ch,7ch) -2.4GHz system transmitter
Usage precaution

Antenna installation for carbon fuselage• Analog servos cannot be used with the R7108SB in the FASSTest
12CH / FASST High-speed mode.

• Don't connect to Extra Voltage before turning on a receiver.

You must leave 30mm at the tip of the antenna fully exposed. The
exposed antenna should be secured so that it cannot move around orback inside of your aircraft.

WARNINGBe careful of connector insertion
Don't connect an S.BUS servo / gyro to S.BUS2 connector.

Changes or modification not approved by the party responsible forcompliance could void the userʼs authority to operate the equipment.

Link precaution

The R7108SB receiver should be protected from vibration by foamrubber, Velcro, or similar mounting methods. Protect from moisture.

Do not perform the linking procedure while the motor's main power isconnected or the engine is operating as it may result in serious injury.

Keep away from conductive materials to avoid short circuits.

When the linking is complete, please cycle the receiver power andensure the receiver is properly linked to the transmitter.

Antenna installation precaution

Please power up your system in this order: Transmitter ﬁrst, followedby the receiver.

Do not cut or bundle the receiver antenna wire.
Do not bend the coaxial cable. It causes damage.

If the R7108SB receiver was previously linked to another transmitter,
make sure that transmitter is not operating while linking the receiver tothe new transmitter.

The antennas must be mounted in such a way to assure they are strain
relieved.

Connector precaution

Keep the antenna as far away from the motor, ESC and other noise
sources as you possibly can.
Do not touch the antenna to metal, carbon, or other conductive material.
Be sure that the two antennas are placed at 90 degrees to each other.
■ The R7108SB has two antennas. In order to maximize signal reception
and promote safe modeling Futaba has adopted a diversity antenna system.
This allows the receiver to obtain RF signals on both antennas and fly
problem-free.

SystemStatusLEDNo signal reception
Receiving signals

Red SolidGreen Solid
FASSTest
Start → 2second
Waiting for link
later → Red Blink（1second）
No signal reception
Red Solid
Receiving signals
Green Solid
FASST
Receiving signals
Green Blink
but ID is unmatched
Waiting for link
Red Blink
FASSTest Unrecoverable error
Alternate blink
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*When on "FASST-7ch" mode, the fail safe function can be set for 3-channel only.
*Be sure that when using ESCs regulated output
the capacity of the ESC must meet your usage
condition.
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Do not insert either a switch
or battery in this manner.

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R7108SB Speciﬁcations
FASSTest-2.4 GHz system(18 ch/12 ch mode)
FASST-2.4 GHz system (Multi-ch/7 ch mode)
S.BUS2 and S.BUS port and 8 channels for conventional system receiver• Dual antenna diversity• Size: 0.98 x 1.86 x 0.56 in. (24.9 x 47.3 x 14.3mm)• Weight: 0.42 oz. (12.0 g)• Power requirement: 3.7 V to 7.4 V(Voltagerange: 3.5 V to 8.4 V)• Battery F/S Voltage: FASSTest---It sets up with atransmitter FASST---3.8 V• Extra Voltage port: 0 〜 70 V DC

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LED Indication

DANGER

Don't connect a connector, as shown in a
before ﬁgure.
■ It will short-circuit, if it connected inthis way. A short circuit across the battery
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Gently bend the coaxial
cable part.

Antennainstallation

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Compliance Information Statement (for Canada)This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following
two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, includinginterference that may cause undesired operation of the device. This equipment complies with IC radiation exposure
limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
French: Cet appareil radio est conforme au CNR-210 d’Industrie Canada. L’utilisation de ce dispositifest autoriséeseulement aux deux conditions suivantes : (1) il ne doit pas produire de brouillage, et (2) l’utilisateur du dispositif doitêtre prêt à accepter tout brouillage radioélectrique reçu, même sice brouillage est susceptible de compromettre le fonctionnement du dispositif. Cet équipement est conforme aux limites d’exposition aux rayonnements IC établies pour unenvironnement non contrôlé.
Cet équipement est conforme aux limites d’exposition aux rayonnements IC établies pour un environnement noncontrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps.

Compliance Information Statement (for U.S.A.)
This device, trade name Futaba Corporation, model number R7108SB, complies with part15 of the FCC Rules.
Operation is subject to the following two conditions:(1) This device may not cause harmful interference, and(2) This device must accept any interference received, including interference that may cause undesired operation.
CAUTION: To assure continued FCC compliance
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to operate the equipment.
2. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
The responsible party of this device compliance is:
FUTABA Corporation of America
2681 Wall Triana Hwy Huntsville, AL 35824, U.S.A.
Phone:1-256-461-9399 FAX:1-256-461-1059 E-mail: service@futabaUSA.com

Declaration of Conformity (for EU)

Hereby, Futaba Corporation declares that the radio equipment type is R7108SB in compliance with Directive 2014/53/
EU. The full text of the EU declaration of conformity is available at the following internet address:

http://www.rc.futaba.co.jp/english/dl/declarations.html

Channel Modes

FASSTest

The R7108SB is capable of changing its channel allocations as
described in the table below. This is especially important when using
the receiver in a dual receiver mode. See your transmitter operation
manual for complete details on operating in the dual receiver mode.

FASSTest is a bidirectional communication system between theR7108SB receiver and FASSTest capable transmitters. Multiple
optional telemetry sensors may be connected to the S.BUS2 on thereceiver and that data is in turn displayed on the transmitter.

1 Turn on the receiver. [Transmitter is always OFF]2 Press and hold the Link/Mode button for 5 seconds to 10

Link to the transmitter : FASSTest

3 When the LED of the receiver changes from blinking red to2 Turn on the transmitter. Place the transmitter into the receiver

4 The LED should now blink red two times in the patterns

3 Turn on the receiver.
4 The receiver will wait for the linking process to begin for 2

1 Bring the transmitter and the receiver close to each other,seconds.

within 20 inches (half meter).

blinking red with green, Link/Mode button is released.

linking mode.

described in the chart below.

5 Each press of the Link/Mode button advances the receiver toseconds. Following that it will return to the normal operationmode.

the next mode.

6 When you reach the mode that you wish to operate in, press

5 When the LED of the receiver changes from blinking red toand hold the Link/Mode button for more than 2 seconds.
When LED blinks in green with red, it is the completion of amode change, Link/Mode button is released.

solid green, linking is complete.

(A link waiting state is ended in 1 second.)

7 Please cycle the receiver power off and back on again after• Refer to the transmitter's operation manual for complete details on how
to place the transmitter into the linking mode.
• If there are many FASSTest systems turned on in close proximity, yourreceiver might have difficulty establishing a link to your transmitter.
This is a rare occurrence. However, should another FASSTest
transmitter/receiver be linking at the same time, your receiver could linkto the wrong transmitter. This is very dangerous if not noticed. To avoid
the problem, we strongly recommend that you double check whether
your receiver is really under control by your transmitter.
• If the System Type of the transmitter is changed, the receiver will need
to be re-linked to the transmitter.

changing the Channel mode.
R7108SB CH Mode table
Outputconnector
1Channel
Mode A
1 〜 8CH
1

Mode B
1 〜 7CH1Mode C
Mode D
9 〜 16CH 9 〜 15CH
9922210103331111444121255513136661414

7/B

7715

15

8/SB
Red LEDblink

8S.BUS

16S.BUS

1 time2 times

3 times

4 timesS.BUS2
S.BUS2 extends S.BUS and supports bidirectional communication.
Sensors are connected to the S.BUS2 port.

Default

Link to the TMA-1 Telemetry Adapter
1 R7108SB has to be FASSTest.
2 First, a transmitter and a receiver are linked.
3 Transmitter is turned off.
4 Press and hold the Link/Mode button of R7108SB for 15 seconds.
5 After the R7108SB LED lights in this sequence, Red Blink -- Red with GreenSystems (FASSTest ⇔ FASST) change method

1 Turn on the receiver. [Transmitter is always OFF]2 Press and hold the Link/Mode button for 10 seconds to 15seconds.

Blink -- Green Blink -- Red Blink, release the Link/Mode button.

3 When the LED begins to blink green the button may be

6 When in link mode with the R7108SB, the TMA-1 LED blinks green along withreleased.
4 The LED should now be blinking green in one of the patterns
described by the chart below.
( Default : FASSTest )5 Each press of the Link/Mode button advances the receiver tothe next system.
6 When you reach the system that you wish to operate in, press
and hold the Link/Mode button for more than 2 seconds.
When the LED blinks green and red, the system change iscomplete. Release the Link/Mode button.
7 Please cycle the receiver power off and back on again after
changing the system.

the red LED of the receiver.

7 Push the TMA-1 link button as long as necessary for its LED to blink.
8 Completion of a link will change LED of TMA-1 green from red only for amoment.

9 Please cycle the receiver power.
FASST
R7108SB also can use the FASST-Multi/7ch mode. The FASST mode does
not support the telemetry functions. The FASST system has a normal mode anda high-speed mode. However, in the High-speed mode, analog servos cannot beused.

Link to the transmitter : FASST

1 Bring the transmitter and the receiver close to each other,

R7108SB System table
Green LEDblink
1 time2 times
3 times
4 times
5 timeswithin 20 inches (half meter).

2 Turn on the transmitter and receiver.
3 Link operation is performed by the Link/Mode switch.

SystemDefault
FASSTest
FASST Multi-ch Normal mode
FASST Multi-ch High-speed mode
FASST 7ch Normal mode
FASST 7ch High-speed mode

• When using TM-8 module, it's possible to set F/S position (only 3CH).
0 sec.

Press and Hold time
With TM-8(not included in this set)

*FASST mode cannot use telemetry functions.
本產品符合低功率電波輻射性電機管理辦法 第十二條、第十四條等條文規定
1. 經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用者均不得擅自變更頻率、加大功率或變更原設計之特性及功能。
2. 低功率射頻電機之使用不得影響飛航安全及干擾合法通信 ；經發現有干擾現象時，應立即停用，並改善至無干擾時方得繼續使用。前項合法通信，指依電信法規定作業之無線電通信。低功率
射頻電機須忍受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。

Besides TM-8

1 sec.
0 to 1 sec.

No function

2 sec.
1 to 2 sec.

More than 2 sec.

To set the F/S
Re-link(ID set) and toposition(No re-link) set the F/S position

No function

Re-link(ID set)

*Refer to the instruction manual of the transmitter or module used for a descriptionof the linking operation, F/S position setting methods and other details.

FUTABA CORPORATION
Hobby Radio Control Business Center Sales & Marketing Department
1080 Yabutsuka, Chosei-mura, Chisei-gun, Chiba-ken, 299-4395, Japan

TEL: +81-475-32-6051, FAX: +81-475-32-2915©FUTABA CORPORATION

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