FUTABA R7208SB User manual

R7208SB
Thank you for purchasing a Futaba R7208SB
FASSTest-2.4GHz compatible receiver. The
R7208S B 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
output ports (1-8ch) and S.BUS output ports. The
R7208SB can also be switched to the Dual Rx
Link System. This system can ensure safety by
mounting two FASSTest receivers on one aircraft.
1M23N38308
●Applicable systems: Futaba FASSTest-2.4GHz system transmitter◆
FASSTest-2.4GHz Bidirectional Communication System
◆
Dual Rx Link System Equipment
◆
S.BUS2 / S.BUS Port and 8 Channels for Conventional System
Receiver
*Be sure that when using ESCs regulated
output the capacity of the ESC must meet
your usage condition.
*Never use dry batteries for the power sup-
ply of the R7208SB as they may cause
di󰀩culties.
R7208SB SpecificationsFASSTest-2.4 GHz system(18 ch/12 ch mode)
S.BUS2 and S.BUS port and 8 channels for conventional system receiver
• Dual antenna diversity
• Size: 0.98 x 1.53 x 0.56 in. (24.9 x 38.8 x 14.3 mm)
• Weight: 0.35 oz. (9.9 g)
• Power requirement: 3.7 V to 7.4 V(Voltage range: 3.5 V to 8.4 V)
• Battery F/S Voltage: It sets up with a transmitter
• Extra Voltage port: 0 ～70 V DC
Servo for conventional
system
Mode LED Link LED
Antenna
Mode switch
Extra Voltage Port
(It is not used for a link.)
It connects with the battery
for power, etc.
External voltage input
cable of an option is used.
The voltage of the battery
can be displayed with a
transmitter.
S.BUS Servo
S.BUS Gyro
HUB
HUB
HUBHUB
HUB
R7208SBHUB
Battery
3.7 ～ 7.4 V Switch
Servo
When all ports are used.
A battery is connectable
also with which port.
Temperature
Sensor
Voltage
Sensor
Current
Sensor
RPM
Sensor
Altitude
Sensor
Airspeed
Sensor
S.BUS2 Tool
S.BUS2 port
(S.BUS2）
S.BUS port
(8/SB）
Channel 8 output
Channel 1 output
＋－
(Typical installation)
Receiver
Do not insert either a switch
or battery in this manner.
DANGERThe The R7208SBR7208SB has a port switching has a port switching function. If function. If SB2/4SB2/4 to to SB2/7SB2/7 ports are also ports are also set to S.BUS2, sensors can be connected.set to S.BUS2, sensors can be connected.RED
⇒
ORANGE
⇒
GREEN
⇒
ORANGE slow blink
Blinks ORANGE once
Blinks ORANGE twice
Blinks ORANGE
Solid ORANGE
FASSTest12CH(Telemetry OFF）mode :
ON
FASSTest12CH(Telemetry OFF）mode :
OFF4Press switch
Press SW once more
to return to flashing
orange once 35Press and hold the SW
6 Release SW
Release the
switch here
7Turn off the receiver power
Blinking switches every 5 seconds as follows.
1Turn on the receiver. [Transmitter is always OFF]
2Press and hold the SW for 5 seconds or more.
FASSTest12CH(Telemetry OFF）mode
This mode is forcibly turning o telemetry transmission to prevent
collision of telemetry signals from the receiver to the transmitter
when using dual RX link mode in FASSTest12ch mode.
After restarting, the
LINK LED lights up.
In FASSTest12CH Telemetry OFF ModeStatusLINK LEDStartOrange SolidPercentage of Waste
Paper pulp 80%
Change t o t h i sChange to this
mode when usingmode when using
FASSTest12CH inFASSTest12CH in
dual RX link mode.dual RX link mode. Compliance Information Statement (for U.S.A.)
This device, trade name Futaba Corporation, model number R7208SB, 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
1. Any changes or modications not expressly approved by the grantee of this device could void the user's
authority 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:[phone] FAX:[phone] E-mail: [e-mail]
In FASSTest12CH mode, after linking R7208SB in telemetry
OFF mode, link the receiver you want telemetry to. (The
transmitter will show the telemetry of the last linked transmitter.)
1Install two receivers on the aircraft as shown in the
connection example.
2Link the two receivers using the dual receiver feature
of the transmitter.
For systems without dual receiver capability, link
each receiver in turn.
Transmitter in link modeTransmitter in link modeFor FASSTest 18CH Select dual mode and link primary*Follow the link procedure for each receiver manual.For FASSTest 18CH Select dual mode and link secondaryTurn on the main receiver and linkTurn on the sub receiver and link◆About telemetry systemWhen using the dual receiver function・The telemetry function of the main receiver can be used・Sub-receiver telemetry function is not availableHow to Dual Rx LinkTelemetry for FASSTest12CHFUTABA CORPORATION
Hobby Radio Control Business Center Sales & Marketing Department
1080 Yabutsuka, Chosei-mura, Chosei-gun, Chiba-ken, 299-4395, Japan TEL: [phone], FAX: [phone] ©FUTABA CORPORATION 2022, 12 (1)
Telemetry OFFmodeTelemetry Telemetry Telemetry OFFmodeFirst LinkFirst LinkTelemetry display of second-linked receiver.
Telemetry OFF first-Linked receiver.
DisplayDisplay＃1
Second Link
＃2
Second Link
＃2＃2＃1
＃1
＃2＃2FASSTest receivere.g.Antenna installation for carbon fuselageYou must leave 30mm at the tip of the antenna fully exposed. The exposed antenna should be secured so that it cannot move around or back inside of your aircraft. Be careful of connector insertionDon't connect an S.BUS servo / gyro to S.BUS2 connector.Link precautionDo not perform the linking procedure while the motor's main power is connected or the engine is operating as it may result in serious injury.When the linking is complete, please cycle the receiver power and ensure the receiver is properly linked to the transmitter.Power on the system in this order: Transmitter rst, followed by the receiver. If the R7208SB receiver was previously linked to another transmitter, make sure that transmitter is not operating while linking the receiver to the new transmitter.Connector precautionDon't connect a connector, as shown in this gure.■It will short-circuit, if it connected in this way.
A short circuit across the battery terminals may
cause abnormal heating, fire and burns.
Usage precaution• Analog servos cannot be used with the R7208SB in the FASSTest
12CH mode.
• Don't connect to Extra Voltage before turning on a receiver.
WARNINGChanges or modification not approved by the party responsible for compliance could void the user’s authority to operate the equipment.The R7208SB receiver should be protected from vibration by foam rubber, Velcro, or similar mounting methods. Protect from moisture.Keep away from conductive materials to avoid short circuits.Antenna installation precautionDo not cut or bundle the receiver antenna wire.
The antennas must be mounted in such a way to assure they are strain relieved. 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 R7208SB 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.

Communicate with two receiversReceiver : AReceiver : BEven if there is a problem with the B receiver, communication will be performed with the A receiver.Even if there is a problem with the A receiver, communication will be performed with the B receiver.In Dual RX link mode, the SB2/RX port is for reception
only, so use CH mode B, C, D, F, G mode for S.BUS
output and S.BUS2 input/output. How to change to Dual RX Link mode
RED
⇒
ORANGE
⇒
GREEN
⇒
ORANGE slow blink
Blinks GREEN once
Blinks GREEN twice
Blinks ORANGE
Solid ORANGE
Dual RX Link mode :
OFF
Dual RX Link mode :
ON4Press switch
Press SW once
more to return to
flashing green once 35Press and hold the SW
6 Release SW
Release the
switch here
After restarting, the
MODE LED lights up.
When using ESC
R7208SB
ESC
FASSTest Receiver
S.BUS2 7Turn off the receiver power
Blinking switches every 5 seconds as follows.
If it is passed,
turn off the
power and
restart
Antenna
installation Do not bend the antenna partAntenna partGently bend the coaxial cable part.Coaxial cableR7208SB CH Mode tableOutput connectorChannelMode ACH 1-8Mode BCH 1-7Mode CCH 1-6Mode DCH 1-3Mode ECH 9-16Mode FCH 9-15Mode GCH 9-14111119992222210101033333111111SB2 / 4444S.BUS2121212SB2 / 5555S.BUS2131313SB2 / 6666S.BUS2141414SB2 / 777S.BUS2S.BUS21515S.BUS2SB / 88S.BUSS.BUSS.BUS16S.BUSS.BUSLEDblinkRED 1RED 2RED 3RED 4RED 5GREEN 1GREEN 2Default1Turn on the receiver. [Transmitter is always OFF]
2Press and hold the SW for 5 seconds to 10 seconds.
3 When the LED of the receiver changes from blinking
red to blinking orange, SW is released.
4The LED should now blink red two times in the
patterns described in the chart below.
5 Each press of the SW advances the receiver to the
next mode.
6 When you reach the mode that you wish to operate
in, press and hold the SW for more than 2 seconds. When LED blinks in orange, it is the completion of a
mode change, SW is released.
7 Cycle the receiver power off and back on again after
changing the Channel mode.
Channel ModesThe R7208SB 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. 1Turn on the receiver. [Transmitter is always OFF]
2Press and hold the SW for 5 seconds or more.
Dual Rx Link SystemBy installing two receivers in one aircraft, if one receiver
becomes unable to communicate, the other receiver can be
operated.
Connection example StatusMODE LEDExternal receiver is receiving error or not connected. S.BUS signal not receivedRed Solid
S.BUS signal reception from external receiver (also received by external receiver)
Green SolidAntenna should be secured so that it cannot move around or back inside of aircraft. 90°In Dual RX Link ModeIn FASSTest12CH Telemetry OFF ModeStatusMODE LEDExternal receiver is receiving error or not connected. S.BUS signal not receivedRed Solid
S.BUS signal reception from external receiver (also received by external receiver)
Green SolidStatusLINK LEDStartOrange SolidCompliance 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, including interference that may cause undesired operation of the device. This equipment com-
plies 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
autorisée seulement aux deux conditions suivantes : (1) il ne doit pas produire de brouillage, et (2) l’utilisateur
du dispositif doit être prêt à accepter tout brouillage radioélectrique reçu, même sice brouillage est suscep-
tible de compromettre le fonctionnement du dispositif. Cet équipement est conforme aux limites d’exposition
aux rayonnements IC établies pour un environnement non contrôlé.
Cet équipement est conforme aux limites d’exposition aux rayonnements IC établies pour un environnement
non contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm de distance entre la
source de rayonnement et votre corps.
FASSTest is a bidirectional communication system
between the R7208SB receiver and FASSTest capable
transmitters. Multiple optional telemetry sensors may be
connected to the S.BUS2 on the receiver and that data is in
turn displayed on the transmitter.
Link to the transmitter
1Bring the transmitter and the receiver close to each
other, within 20 inches (half meter).
2Turn on the transmitter. Place the transmitter into
the receiver linking mode.
3Turn on the receiver.
4The receiver will wait for the linking process to
begin for 2 seconds. Following that it will return to
the normal operation mode.
5When the LED of the receiver changes from
blinking red to solid green, linking is complete.
(A link waiting state is ended in 3 second.)
• 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, your receiver 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 link to 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.
S.BUS2
S.BUS2 extends S.BUS and supports bidirectional
communication. Sensors are connected to the S.BUS2 port.
LinkLED IndicationStatusLINK LEDNo signal receptionRed SolidReceiving signalsGreen SolidWaiting for linkStart →2second later → Red Blink（3 second）Unrecoverable error (EEPROM, etc.)Red Green Alternate blink1Turn on the receiver. [Transmitter is
always OFF]
2Receiver enters link waiting state
3 The LED will flash for the current CH
output mode. LINK LEDRed SolidStart →2second later →Red Blink（3 second）Current CH mode displayDeclaration of Conformity (for EU)
Hereby, Futaba Corporation declares that the radio equipment type is R7208SB in compliance with Directive
2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address:
https://www.rc.futaba.co.jp/support/manual/