6-10 CHAPTER 6 Splashproof TPUSeries 5000 Sonar System Operations and Maintenance Manual P/N 11210060, Rev. 13.0To connect power to the TPU:1. If you will be connecting a 115 VAC or 12 VDC power source to the TPU, setthe VOLTAGE SELECT switch inside the TPU to 115V. Refer to theCAUTIONS stated above. Close and latch the TPU cover.If you will be connecting a 230 VAC power source to the TPU, set theVOLTAGE SELECT switch inside the TPU to 230V. Refer to theCAUTIONS stated above. Close and latch the TPU cover.2. Connect the AC power to the 120/230 VAC connector on the TPU.3. Connect the DC power source to the 12 VDC connector.6.3 Activating the Splashproof TPUActivating the Splashproof TPU is similar to that of the rack mount TPU.To activate the Splashproof TPU:1. Connect the towfish cable to the TOWFISH connector of the TPU.2. Turn on the computer and wait for it to fully boot up.3. Switch the RUN/STAND BY switch to STAND BY.4. Switch the VAC/12 VDC switch to VAC to apply AC power to the TPU; switchto 12 VDC to apply DC power. Refer to the CAUTIONS on page 6-9.SHOCK HAZARD Do not connect or disconnect the tow cable from thetowfish or the TPU when power is on. Failure to follow this practice mayresult in personal injury and will damage the towfish or the TPUelectronics, or both.CAUTION Serious damage to the towfish electronics may occur if thetowfish is operated on deck for periods longer than fifteen minutes.Between periods of operation, let the sonar cool for fifteen minutes. In hightemperature climates, protect the towfish from direct exposure to the sun prior to andduring operation.NOTE It is normal for a spark to occur when connecting the DC powercable to a battery, as the inverter is being powered up.
