Trimble Outdoors thunderbolt 64057-00-eng Manuale Utente

Trimble ThunderBolt E GPS Disciplined Clock User Guide

Trimble Standard Interface Protocol

Self-survey (segment 8)

Oscillator disciplining (segment 9)

Packets output at power-up

After completing its self-diagnostics, ThunderBolt E automatically outputs packet
0x45 (Software version),

Command packets: User to ThunderBolt E

The following table summarizes the packets that can be sent to the ThunderBolt E by
the user:

Parameter

Factory Default

Set

Request

Report

Self-survey enable

1 (enabled)

0x8E-A9

Position save flag

1 (save)

0x8E-A9

Self-survey count

2000 (fixes)

0x8E-A9

Parameter

Factory Default

Set

Request

Report

Time Constant

10.0 seconds

0x8E-A8

Loop Damping

1.0

0x8E-A8

8.83 (Hz/volt)

0x8E-A8

Minimum control
voltage

0.0 (volts)

0x8E-A8

Maximum control
voltage

4.0 (volts)

0x8E-A8

Initial DAC voltage

2.0 (volts)

0x8E-A8

Recovery mode jam
sync threshold

300.0 (ns)

0x8E-A8

Recovery mode
maximum frequency
offset

50.0 (ppb)

0x8E-A8

Input ID

Packet Description

Output ID

0x1C

Firmware/Hardware versions

0x1C

0x1E

Initiate cold, warm, or factory reset

0x45 (after reset)

0x1F

Request software version

0x45

0x24

Request GPS satellite selection

0x6D

0x25

Initiate hot reset

0x45 (after reset)

0x26

Request receiver health

0x46, 0x4B

0x27

Request signal levels

0x47

0x29

Request Almanac Health

0x49

0x31

Set accurate position (XYZ ECEF)

0x32

Set accurate position (Lat, Long, Alt)