1M23N32102

S-FHSS 2.4GHz System
S.BUS Port and 1 Channel (CH3) for Conventional SystemReceiver

R2001SB

Thank you for purchasing a Futaba R2001SB S-FHSS 2.4GHz compatible receiver.
The R2001SB has an S.BUS system output port and a conventional system channel output. It can also be used withconventional system servos, etc. in addition to S.BUS system compatible servos and gyros.

Applicable systems: Futaba S-FHSS 2.4GHz system and TM-FH RF Module
Antenna installation precaution

Usage precaution

Do not cut or bundle the receiver antenna wire.

• Futaba S-FHSS system does not work with current Futaba FASST/FASSTest/T-FHSS system. Futaba FASST/FASSTest/T-FHSS system and S-FHSS system are not compatible to each other.

Do not bend the coaxial cable. It causes damage.

WARNING
Wrap the receiver with something soft, such as foamrubber, to avoid vibration. Moreover, the receiver must
not get wet.
Do not short-circuit the connectors.
Do not expose the receiver to high temperatures.

The antenna should not be pulled.
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 otherconductive material.
Be sure that the two antennas are placed at 90
degrees to each other.

• The shrink cover could become distorted.

• The R2001SB 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.

Do not break the tube.
• Could cause a short circuit.

When inserting and removing a connector, hold thereceiver tightly.

Antenna installation for carbon fuse

• Be careful so that a tube doesn't come off.

WARNING
The antenna portion of 30mm tip must be fully
exposed.

R2001SBLink switch• Please make sure that the exposed portion won't slide back in thefuse due to wind pressure or other force during the ﬂight session.

LED

CH3 output conventional system/ Battery terminal

AntennaS.BUS equipment

The power supply from S.BUS port isalso possible.

S.BUS Port
Antenna installation

Direction of the connectors

90˚

Please refer the table below for LED status vsreceiver's condition.

LED Indication
GreenRedOff

SolidNo signal reception

SolidOff

Receiving signals

Blink

Off

Receiving signals but ID is unmatched

Alternate blink

StatusUnrecoverable error (Memory, etc.)56%6SHFLÀFDWLRQVS-FHSS 2.4GHz system/S.BUS port and 1 channel for conventional system receiver• Dual antenna diversity• Power requirement: 4.8V to 7.4V
• Size: 0.83 x 1.65 x 0.21 in. (21.1 x 41.8 x 5.3 mm)• Battery F/S Voltage: 3.8V
• Weight: 0.15 oz. (4.2g)* Be sure that when using ESC's regulated output the current capacityof the ESC meets your usage condition.
*The Battery F/S voltage is set for 4-cell NiCd/NiMH battery. Battery F/S function doesn't work properly when a different typeof battery is used.
*The fail safe function can be set for each channel. However, it differs according to the transmitter. When you use TM-FH RF Module,
the fail safe function can be set for channel 3 only.

*S.BUS port: R2001SB can be used with up to 8 channels. However,it differs according to the transmitter. An unused channel is a neutralsignal. The F/S setting channel at F/S is F/S position. Another, it isHold signal.

Link to the transmitter1 Bring the transmitter and the receiverclose to each other, within 20 inches (halfmeter).
2 Turn on the transmitter.
3 Turn on the receiver.
4 Press and hold the Link switch morethan two (2) seconds. When the link iscomplete, the LED in the receiver changes
to solid green. When the ID cannot beread due to the surrounding environment,
try reading it with the transmitter andreceiver antennas touched.

• When you use TM-FH RF Module, the fail safe function can be set
for channel 3 only.
• If there are many S-FHSS systems turned on in close proximity, yourreceiver might not link to your transmitter. In this case, even if thereceiver's LED stays solid green, unfortunately the receiver might
have established a link to one of other transmitters. This is very
dangerous if you do not notice this situation. In order to avoid theproblem, we strongly recommend you to double check whether yourreceiver is really under control by your transmitter by giving the stick
input and then checking the servo response.

WARNING
Do not perform the linking procedure with themotor's main wire connected or the engine operating
as it may result in serious injury.
When the linking is done, please cycle receiver
power and check if the receiver to be linked is really
under the control of the transmitter to be linked.

What is S.BUS?
WARNING
Turn on the power on transmitter → receiver inorder. In addition, always check the operation of all thefunctions before ﬂight.

Different from conventional radio control systems, the S.BUS
system uses data communication to transmit control signals
from a receiver to a servo, gyro, or other S.BUS compatibledevices. This data includes commands such as “move thechannel 3 servo to 15 degrees, move the channel 5 servo to30 degrees” to multiple devices. The S.BUS devices execute
only those commands for their own set channel. For thisreason, it can be used by connecting multiple servos to thesame signal line.

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3/Ｂ：Conventional
CH3 PortR2001SB
ReceiverS.BUS Port

Since the S.BUS servo switches the operation mode automaticallyaccording to the type of signal (S.BUS signal/PWM signal) from the receiver, if the connector is inserted or removed while the power is ON, anS.BUS connected servo will be erroneously recognized and may stop.

●Can also be used together with conventional servo.
(Only 3 channel)
S.BUS servo CH setting device

S.BUS
Servo
Hub

Hub
S.BUS Port

Do not insert or remove the S.BUS connector while
the receiver power is ON.

Conventional
Servo

Battery

3/Ｂ：Conventional
CH3 Port

WARNING

S.BUS
Servo

Transmitterwith S.BUS
setting

S.BUS
Servo

Conventional
Servo
Battery

SBD-2

Conventional
Servo
Conventional
Servo
Conventional
Servoor

SBC-1

orCIU-2/3

Drivers and Link programs＂S-Link＂ must be installed.

●The SBD-2/SBD-1 is a converter for using
conventional servos with the S.BUS system.
◆SBD-2Eight servos are connectable.
◆SBD-1Three servos are connectable.
*Before installing the SBD-1 to the fuselage, set each channel at
each servo connector (SX1~3). Use the SBC-1 S.BUS channelchanger or CIU-2/3 USB adapter (S-Link software for setting) toset the channel.

*Refer to the instruction manual of each item for thesetting method.

FUTABA CORPORATION
1080 Yabutsuka, Chosei-mura, Chosei-gun, Chiba-ken, 299-4395, Japan
Phone: +81 475 32 6982, Facsimile: +81 475 32 6983
©FUTABA CORPORATION

2016, 12 (1)