LightSpace® DP-700 Optical Distribution Enclosure, 4RU. LightSpace DP Series optical distribution enclosures are designed to protect, manage and organize fiber terminations in rack mount environments. LGX® compatibility allows users to fill and expand legacy systems. Enclosures are available with adapters, pigtails or pre-connectorized cable stubs. The stubbed option allows the splice point to be located in a splicing vault or at the building entrance point. The cable stub is shipped on a reel for ease of deployment. Units can be purchased separately or in combination.