Abstract: A specially constructed partition member subdivides a splice case into separate hermetically isolated compartments. A plurality of insulated conductors are wired through the partition member, with seals therebetween, and optionally fitted with multi-pair plug connectors at one or both ends. Incoming cables are fitted, as needed, with plug connectors for separable connection to any mating connectors on the pass through conductors on the respective side of the partition member. The parts of the splice case housing are independently separable from the partition member to permit reentry and access to any compartment.