User Guide

Specification for Spektrum X-Bus Telemetry Sensors
Page 4 Rev E
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5 ELECTRICAL DATA
All sensors are powered by the X-Bus. The X-Bus port bus provides the servo bus voltage (3.5 to
9.6V) at a current limited by the JST contact rating (1A). The operational limit in an application may
be quite a bit lower, depending upon the method of powering the servo bus.
The X-Bus uses I2C to communicate. Termination resistors are in the TM1000. The pins are defined
according to this picture: