1M23N28502 R304SB T-FHSS-2.4GHz System S . B U S 2 , 4 - C h a n n e l Receiver for Model Car
WARNING NEVER use dry batteries for
the power supply of the R304SB as this may cause difficulties with the receiver's operation.
W r a p t h e r e c e i v e r w i t h something soft,such as foam rubber,to avoid vibration. Do not splash water over the receiver.
Since the receiver generates a certain amount of heat, install the place with good ventilation. Thank you for purchasing the R304SB receiver. The R304SB is designed for use with the Futaba T-FHSS system transmitter. The R304SB receiver has adopted the newly developed bidirectional communication system "T-FHSS".
With the telemetry system, the running status can be displayed at the transmitter. The telemetry data can be checked at the transmitter by connecting the telemetry sensor sold separately to the S.BUS2 connector of the R304SB receiver.
The "Normal mode" accepts any type of servos or the peripheral. The "High Speed mode"
only accepts the digital servos, including BLS series, and most peripheral equipments such as the brushless ESCs. Please pay special attention to the information contained within this manual and transmitter's manual in order to have a pleasant running experience. Note: The R304SB is compatible with the T-FHSS system transmitters. The receiver type setting of the transmitter is set in T-FHSS.
*Futaba T-FHSS system does not work with current Futaba S-FHSS/FHSS/FASST-
est/FASST system. LED Link switch Operating Precautions:
Once the R304SB detects the T-FHSS normal mode or T-FHSS high speed mode, the detected mode is locked as long as the power is ON. When need to change the mode, please cycle power. CH output
(1 to 4) / (Battery) S.BUS2 / (Battery) Usage condition on "High Speed mode"
CAUTION
When using the high-speed mode, use a Futaba digital servo (including brushless servo). Analog servos cannot be used.
1 Link Procedure Each transmitter has an individually assigned, unique ID code. In order to start operation, the receiver must be linked with the ID code of the transmitter with which it is being paired. Once the link is made, the ID code is stored in the receiver and no further linking is necessary unless the receiver is to be used with another transmitter. 1 Place the transmitter and the receiver close to each other within half (0.5) meter. 2 Place the transmitter into the linking mode, and turn on the receiver. 3 During countdown, push the receiver tact switch for approximately 2 seconds. The LED will begin to blink red. After the receiver LED switches from blinking red to green red steady light, If the transmitter and receiver are linked normally, set the power switch to the OFF position and then return it to the PWR ON position. If the receiver LED lights green, linking was successful. Actually check servo operation.
*Please refer to the table below for LED status and receiver condition. No signal recep-
tion Receiving signals Unrecover-
able failure
(EEPROM,etc.) LED: Red LED: Green LED: Red and Green turn on alter-
nately
*Refer to the transmitters operation manual for complete details on how to place the transmitter into the linking mode.
*If there are many T-FHSS systems turned on in close proximity, your r e c e i v e r m i g h t h a v e d i f f i c u l t y establishing a link to your transmitter. This is a rare occurrence. However, should another T-FHSS transmitter/
receiver be linking at the same time, your receiver could link to the wrong transmitter. This is very dangerous if you do not notice this situation. In order to avoid the problem,we strongly recommend you to double check whether your receiver is really under control by your transmitter.
WARNING
After the linking is done, please cycle receiver power and check if the
Do not perform the linking procedure with motor's main wire connected or receiver to be linked is really under the control by the transmitter to be linked. with the engine operating as it may result in serious injury. The Example of Connection Battery
*When all the ports are used, connect a battery using HUB or Y-harness. Switch CH2 Throttle servo CH4 CH1 S.BUS2 Receiver Steering servo Collect many telemetry sensors by HUB and connect them to S.BUS2 port. HUB Temperature sensor RPM sensor Voltage sensor Telemetry sensors
(Option) Compliance Information Statement
(for U.S.A.) This device, trade name Futaba Corporation of America, model number R304SB, complies This device, trade name Futaba Corporation of America, model number R304SB, complies This device, trade name Futaba Corporation of America, model number R304SB, complies with part15 of the FCC Rules. Operation is subject to the following two conditions:
with part15 of the FCC Rules. Operation is subject to the following two conditions:
with part15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation. undesired operation.
(2) This device must accept any interference received, including interference that may cause CAUTION:
undesired operation. To assure continued FCC compliance:
CAUTION:
(3) This module meets the requirements for a mobile device that may be used at separation 1. Any changes or modifications not expressly approved by the grantee of this device could To assure continued FCC compliance:
void the user's authority to operate the equipment. 1. Any changes or modifications not expressly approved by the grantee of this device could void the distances of more than 20cm from human body. 2. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled user's authority to operate the equipment. To meet the RF exposure requirements of the FCC this device shall not be co-located with environment. 2. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled another transmitting device. 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:
To meet the RF exposure requirements of the FCC this device shall not be co-located with another transmitting device. Futaba Service Center The responsible party of this device compliance is:
The responsible party of this device compliance is:
Futaba Service Center 3002 N Apollo Drive Suite 1, Champaign, IL 61822 U.S.A. Futaba Service Center 3002 N Apollo Drive Suite 1, Champaign, IL 61822 U.S.A. TEL (217)398-8970 or E-mail: support@futaba-rc.com (Support) 3002 N Apollo Drive Suite 1, Champaign, IL 61822 U.S.A. TEL (217)398-8970 or E-mail: support@futaba-rc.com (Support) TEL (217)398-8970 or E-mail: support@futaba-rc.com (Support)
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R304SB Specications:
(T-FHSS system, S.BUS2, 4-channel receiver)
T-FHSS system At Normal/High speed mode (auto detection)
Power requirement Rated voltage: 4.8V-7.4V / Usable voltage: 3.5-8.4V
FUTABA CORPORATION 1080 Yabutsuka, Chosei-mura, Chosei-gun, Chiba-ken, 299-4395, Japan Phone: +81 475 32 6982, Facsimile: +81 475 32 6983 2 FUTABA CORPORATION 2013, 4 (1)