1
Turn on the receiver. [Transmitter is always OFF]
2
Receiver enters link waiting state
3
The LED will flash for the current CH output
mode.
LED Indication
In Dual RX Link Mode
In FASSTest12CH Telemetry OFF Mode
Status
LINK LED
No signal reception
Red Solid
Receiving signals
Green Solid
Waiting for link
Start → 2second
later → Red Blink
（1second）
Unrecoverable error (EEPROM, etc.)
Red Green
Alternate blink
Status
MODE LED
External receiver is receiving error or not connected.
S.BUS signal not received
Red Solid
S.BUS signal reception from external receiver
(also received by external receiver)
Green Solid
Status
LINK LED
Start
Orange Solid
Communicate with two receivers
Receiver : A
Receiver : B
Even 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
: ON
4
Press switch
Press SW once
more to return to
flashing green once
3
5
Press and hold the SW
6
Release SW
Release the
switch here
After restarting, the
MODE LED lights up.
When using ESC
R7208SB
S.BUS2 Receiver
ESC
7
Turn off the receiver power
Blinking switches every 5 seconds as follows.
If it is passed,
turn off the
power and
restart
Antenna
installation
90°
Do not bend the antenna part
Gently bend the coaxial
cable part.
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
1
Bring the transmitter and the receiver close to each
other, within 20 inches (half meter).
2
Turn on the transmitter. Place the transmitter into
the receiver linking mode.
3
Turn on the receiver.
4
The receiver will wait for the linking process to
begin for 2 seconds. Following that it will return to
the normal operation mode.
5
When the LED of the receiver changes from
blinking red to solid green, linking is complete.
(A link waiting state is ended in 1 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.
Link
R7208SB CH Mode table
Output
connector
Channel
Mode A
CH 1-8
Mode B
CH 1-7
Mode C
CH 1-6
Mode D
CH 1-3
Mode E
CH 9-16
Mode F
CH 9-15
Mode G
CH 9-14
1
1
1
1
1
9
9
9
2
2
2
2
2
10
10
10
3
3
3
3
3
11
11
11
SB2 / 4
4
4
4
S.BUS2
12
12
12
SB2 / 5
5
5
5
S.BUS2
13
13
13
SB2 / 6
6
6
6
S.BUS2
14
14
14
SB2 / 7
7
7
S.BUS2 S.BUS2
15
15
S.BUS2
SB / 8
8
S.BUS
S.BUS
S.BUS
16
S.BUS
S.BUS
LED
blink
RED 1
RED 2
RED 3
RED 4
RED 5 GREEN 1 GREEN 2
Default
Channel Modes
The 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.
1
Turn on the receiver. [Transmitter is always OFF]
2
Press 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.
4
The 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 green with red, 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.
1
Turn on the receiver. [Transmitter is always OFF]
2
Press and hold the SW for 5 seconds or more.
Dual Rx Link System
By installing two receivers in one aircraft, if one receiver
becomes unable to communicate, the other receiver can be
operated.
Connection example
Status
MODE LED
External receiver is receiving error or not connected.
S.BUS signal not received
Red Solid
S.BUS signal reception from external receiver
(also received by external receiver)
Green Solid
Percentage of Waste
Paper pulp
80
%
Antenna should be secured so
that it cannot move around or
back inside of aircraft.
