Display information
The SPEED100 has 2 line x 16 character display which is used to show a number of pages of status information. Each page will cycle through approximately every 2s.
This information is mostly used for remote debugging of issues.
Unit status
| Unit name
| Unit serial number
|
| Firmware and hardware version
| Current CPU load
|
Note that the CPU load should be under 75% in normal operation. If above 75% then consider the configuration.
LTE status
| LTE status, or if available the operator’s name
| Signal strength
|
| Data rate from server to unit
| Data rate from unit to server
|
The signal strength is derived from the total turnaround time for communications with the server. That is the time to send a message to the server and get a response. Under optimal conditions, the total turnaround time is approximately 0.2 seconds.
The maximum data rate with the server is about 1Mbit.
Logging status
When not logging this displays the amount of data currently buffered in the unit’s internal memory
When logging this displays the name of the file that is being uploaded, and the time the unit has been logging for.
Port status
| Port name
| Configured baud rate, if E is displayed then errors are detected
|
| Data rate received by the unit
| Data rate transmitted from the unit
|
| Port name
| Description
|
| Serial
| This is the on the front of the unit, and can be configured to 430k or 115k
|
| USB
| USB port has no baud rate is not shown
|
| CAN
| CAN port
|
| GPS
| This shows the total data communication with the internal GPS receiver, useful for diagnosing issues
|
| Server RTCM
| This is the number of valid RTCM bytes transferred over the LTE/4G connection
|
| GPS RTCM
| This is the number of valid RTCM bytes transferred to the internal GPS receiver
|
Note that this is only display if there is either some data being received or transmitted on the relevant ports.
If the E is displayed after the baud rate, then there are errors detected. Typically this is due to one of the following:
- incorrect baud rate
- an intermittent wiring or connector fault
- incorrect CAN termination
- interference, possibly from the vehicle ignition, consider rerouting/shortening cables.
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