The junction box being deployed on the trawl wire. The trawl wire is connected to a 25m soft tether through acoustic releases.
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The junction box being deployed on the trawl wire. The trawl wire is connected to a 25m soft tether through acoustic releases. |
The H2O junction box is designed to be removed for servicing and reinstalled by a research vessel and ROV. These pictures depict some of the key steps in this process. |
The junction box is recovered by dropping a 30m liftline from Medea and attaching it to the lifting bale on top of it. Jason has just made the hookup in this frame.
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The junction box deployed on the bottom, as viewed from Jason.
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Jason preparing to remove the deployment soft tether. |
The termination frame which is connected to the SD cable and to which the j-box is attached by a 30m oil-filled umbilical. The j-box connector has been temporarily stored on it during servicing. |
Jason plugging in the termination cable connector to the j-box. |
The termination cable attached to the junction box. |
Overhead view of the j-box. |
The stainless steel sea ground which is connected to the j-box. Note corrosion due to electrochemical action after a one year deployment. |
