EN
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Spektrum SRXL2
The SPM4650 uses SRXL2
™
to communicate with fl ight controllers. SRXL2 is
a serial communication protocol (a bi-directional data link, one signal wire can
communicate all control and telemetry). Previous Spektrum serial receivers
were based on 1st generation Spektrum remote receiver protocol, which is not
compatible with SRXL2.
To learn more about the features & benefi ts of SRXL2 visit http://SRXL2.com
Installation Instructions
Wiring for the receiver can be directly soldered to the SPM4650 or the included
4-pin connector can be soldered onto the receiver and used to make the connection
to the fl ight controller.
1. Connect the receiver to your fl ight controller as shown in the diagram below.
2. Install the active portion of the antennas (the exposed section at the end of
the antenna wire) as far as possible from metal, carbon fi ber, and wiring.
WARNING:
Do not kink, cut or damage the antenna wire. The
antenna is made of a coaxial wire; if the outer sheath becomes
damaged, the receiver will not work properly.
Binding
The SPM4650 requires a 3.3V – 8.4V volt power supply from the fl ight controller.
1. Press and hold the bind button on the receiver.
2. Power on the aircraft. The orange LED will begin fl ashing.
3. Put the transmitter into bind mode. The bind process is complete when the
orange LED on the receiver is solid.
Alternatively the SPM4650 receiver may be put into bind mode through the
fl ight controller interface.
SRXL V2
-
+
NC
S
S
S
NCNC
NC
+
+
Orange LED
Bind Button
Active portion
of antennas
Negative
Positive
No Connect
TX/Rx Signal
SPECIFICATIONS
SPM4650
Type
DSMX SRXL2 Micro Serial Receiver
Dimensions (L × W × H)
17mm x 13mm x 5mm
Antenna Length
100mm
Weight
1.4g
Voltage Range
3.3V – 8.4V
