Operation Manual

EN
3
SPM9747
Type DSMX SRXL2 Serial “Fly By”Telemetry Receiver
Dimensions (L × W × H) 25.5 × 18.2 × 7.5 mm (1. × 0.71 × 0.29 in)
Weight 3.0g
Band 2.4 GHz
Voltage Range 3.3–8.4V
Spektrum SRXL2
The SPM9747 uses SRXL2 to communicate with receivers. SRXL2 is a serial
communication protocol using a bi-directional data link in which one wire can
communicate all control data. Previous Spektrum serial receivers were based
on the Spektrum remote receiver protocol, which is not compatible with SRXL2.
The SPM9747 is only compatable with SRXL2 receivers such as the AR637T
and AR6610T.
To learn more about the features and bene ts of SRXL2 visit www.SRXL2.com
Binding
1. Press and hold the bind button on the receiver.
2. Power on the aircraft. The orange LED will begin  ashing.
3. Put the transmitter into bind mode. The bind process is complete when the
orange LED on the receiver is solid.
Installation Instructions
Always use DSMX
®
SRXL2 remote receivers with DSMX SRXL2 main receivers.
Connecting New Remote Receivers
1. Connect a Remote Receiver Extension to the main receiver and
remote receiver.
2. Install the receiver in a location as far as possible from the main
receiver antenna.
3. Install the Remote Receiver Extension as far as possible from metal, carbon
 ber, and wiring.
4. Follow the receiver binding instructions to bind the main receiver and
remote receiver(s).
The transmitter and receiver will need to be re-bound any time a new remote
receiver is added to the system.