Micron Gemini
0729-SOM-00004-01
Page 18 of 46
Electrical Installation
For electrical installation please see the connector pinouts in “Appendix A”
For the Micron connector there is a 1 metre test cable available which is terminated to a D-
Type Sub-Miniature connector, see “Micron Test Cable - S11640 XXm”.
Connector Maintenance Guidelines
Mating surfaces should be lubricated with 3M Silicone Spray or equivalent, DO NOT GREASE.
Connectors must be lubricated on a regular basis. Clean plugs and receptacles with soap and
fresh water.
Important
When attaching a connector make sure that both connector and socket are
completely dry. Any water trapped in the connection could result in an
electrical short.
Unused connectors must have a blanking cap fitted prior to immersing in
water. Failure to do this will cause permanent damage.
If using alcohol or IPA to clean out the connector take care that it does not
come into contact with any other part of the sonar.
Ground Fault Monitoring
The power supply within the Gemini includes an electrically isolated DC-DC converter
frontend. There is a small capacitive connection between the isolated ground and the sonar
chassis which should not noticeably affect any impressed current Ground Fault Indicator (GFI)
equipment.
Power
Important
Never try to make the Gemini work down a long cable by increasing the
PSU output voltage above 48V DC.
Important
Power should only be supplied to the Gemini through the MAIN port. The
AUX port power is supplied via pass through from the MAIN port.
Warning
The Gemini PSU that is supplied with the Gemini system is intended for
INDOOR USE ONLY and should not be placed in a position where it could
get wet.
