bar is designed so that when the roda tool string is located into the roda tool holder which will be described later with respect to fig2 the deployment bar will be aligned with the bop pipe rams designated as 8 a in fig1 c upon closing of these pipe rams 8 a an external seal is formed around the tool string with respect to fig1 d the roda lower connector is shown for forming the lower connection of a working tool string section which locates and latches the next to be deployed tool string section specifically it forms a mechanical latch connection for the mating roda connector in addition it houses single or multiple electrical u201c wet u201d connectors to match with the mating roda connector it likewise provides a seal for the mating connector to enable continuity of fluid passage through the overall assembly of the roda this roda lower connector includes a series of spring loaded latch keys 9 designed to locate and latch into the receptacle 1 in the roda upper connector once the keys 9 of the connector are latched into the receptacle 1 a joint is formed which can only be released by extraneous means provided by the tool holder which will be later described internally the body designated as 10 houses a bulkhead carrier 11 for a pressure resistant multiple electrical u201c wet u201d slab connector 12 which matches the connector 3 in the upper roda shown in detail in fig1 a this body 10 when in mated connection with the upper roda provides a sealed chamber that is pressure resistant to the well the male fluid union 10 a in the lower.