Futaba 8FGAS, 8FGHS 2.4GHz - Manual (Page 21)

21 <Before Use>
Connector
"1 through 6": outputs for the channels 1 through 6.
(Digital servo only in the High Speed mode.)
"7", "8": outputs for the channels 7 and 8.
(Analog or digital servos regardless of mode.)
"B": connector for the power.
"S.BUS": output for the S.BUS system.
The R6208SB has two(2) operation modes as
shown below.
Receiver Normal mode/High Speed mode
The "Normal mode" accepts any type of servos
or peripherals as the frame rate of the output is
14ms. The "High Speed mode" only accepts digital
servos for outputs from 1ch to 6ch. This includes
the BLS series, and most peripheral equipment
such as gyros and brushless ESCs. The frame rate
of the outputs is 7ms. The outputs from 7ch to 8ch
allow the use of any type of servos as the frame
rate of these outputs are still 14ms ever in the High
Speed mode.
Receiver nomenclature
Before using the receiver, be sure to read the precautions listed in the following pages.
The R6208SB has an S.BUS system output port and a conventional system channel output. It can also be used
with conventional system servos, etc. in addition to S.BUS system compatible servos and gyros, etc.
In addition, the operating mode (high-speed mode/normal mode) can be selected.
Usage condition on "High Speed mode"

CAUTION
 When using the R6208SB in the high speed
(HS) mode, digital servos are required for
the first six channels (1-6).
If an analog servo is connected to one of the first
six channels when in the high speed mode, the
servo will not function properly. Additionally,
while many peripheral devices will operate in either
the high speed or normal mode, some will not. If
there are any difficulties noted, please return the
reciever's operational mode to the "Normal" mode
to determine if this resolves the difficulty.
If using the R6208SB in the high speed mode,
analog servos may be used for channels seven and
eight.
(For Operation Mode Selection, see p.26)
Link/Mode switch
LED R6208SB
DATA port • Channel outputs for conventional
system ( 1 to 8)
• Battery terminal ( B)
• S.BUS Port (S.BUS)
Don't connect neither a switch
nor a battery in this way.
* It will short-circuit, if it connects in this way.
A short circuit across the battery terminals may
cause abnormal heating, fire and burns.
Receiver
Danger