Lodestar Hardware
Manual
Document Ref: UM-8084-101
Issue: A– Rev 8
© Sonardyne International Limited 2013
14
Note: To improve the sealing performance of the connectors and dummy plugs, smear a
very light coating of grease, such as Molykote 44 Medium, approved for use in deep-water
seals, over the mating surfaces of the connector. Do not use oils or greases not suitable or
approved for this purpose.
Before you assemble any connectors on the Subsea Lodestar, make sure both
parts of the connector are in good condition and any O-rings are undamaged and
fitted correctly.
3.4 Operation
The Surface Lodestar begins to operate when you connect electrical power and
operate the ON/OFF switch to power-on the unit.
The Subsea Lodestar begins to operate when you connect electrical power to the
unit.
Start Up
Immediately following start-up, the Lodestar operates for a period of 20 seconds in
its firmware loader mode, during which it completes a built-in self-test routine.
While operating in this mode, the Lodestar sends information about itself and its
configuration through the Console port to a receiving PC, for example:
Firmware Loader Version 1.03.01.25 Feb 17 2010 09:23:33
CPU UART FPGA 3
CPU Interconnection FPGA 2
SDHC Card capacity:- 7948206080 bytes
.............................................
Loading firmware..............................
Note: The communication parameters used for the Console port are initially fixed at 9600
baud, 8 data bits, 1 stop bit and no parity.
On completion of this firmware loading routine, Lodestar switches to the saved
output configuration and begins to operate in accordance with the saved
configuration.
See section 7.1 starting on page 36 for instruction on how to upgrade the Lodestar
firmware.
Shutdown
In addition to the ON/OFF switch for the Surface Lodestar described in section 3.2
the Lodestar can be turned off via the terminal interface.
To turn off the Lodestar you must enter the command mode using the following key
entries:
•
Hold down the CTRL and o keys together.
•
Then type the following letters in sequence; SON
You will then be informed that you are in command mode with the following prompt: