FOCUS 35 TOTAL STATION USER GUIDE
6 –
Instrument Technology
98
External Communication
The communication port on the base of the Spectra Precision FOCUS 35 Total Station can be used for
external communications to a computer or data collector.
C
CAUTION –
Use only the gray cables with 6-pin Hirose connectors from Spectra Precision when
connecting a cable to the instrument.
Radio
The Spectra Precision FOCUS 35 Total Station (Robotic and RX versions) has an internal radio to
support robotic operations. The internal radio is a 100 mW radio that operates in the public free
2.4 GHz band. The radio uses frequency hopping technology to reduce radio interference and
maintain radio communications in even the harshest RF environment. The Spectra Precision
FOCUS 35 Total Station radio baud rate is 115200 bps. This high baud rate reduces the measurement
latency, which ensures that a measurement viewed at the pole is received 100 msec after the
measurement is sent from the instrument. To maintain radio communication with the instrument,
the controller at the pole must also be connected to a 2.4 GHz external radio or have an internal
radio (Spectra Precision Ranger).
