products

Fiber Optic LAN Enclosures The optional Fiber Optic LAN Enclosures provide dedicated housing for the splitter/combiners and other fiber optic LAN equipment. The enclosures are made of steel, have front and rear doors with slotted locks (which are actuated by a supplied key or standard flat-blade screwdriver) and are provided with leveling feet. The interior is equipped with front-to-back adjustable 19-inch EIA rails for mounting the splitter/combiners. Two, independently-powered power strips accept the power cord plugs from active sources and a junction box connects customer ac power wiring. The enclosures are available in three sizes to accommodate 4, 6, or 8 splitter/combiners and other fiber optic LAN equipment. Fiber Optic Cabling Fiber optic cabling is purchased by the customer from a fiber optics vendor/installer. Four optical fibers are required for basic configurations, since a single node has two sets of transmit and receive connectors (to allow for redundancy). The cables must be terminated with ST type connectors (to match those on the splitter/combiner). Other cable requirements (flexibility, durability, etc.) depend on the particular application. Check with a cable vendor/installer for a listing of application-specific cable characteristics. The maximum length permitted for any run of fiber optic cabling is 10 km (6.2 mi). The number of nodes allowed and the maximum allowable cabling distance for a particular installation depend on various hardware and software constraints. Consult your Foxboro representative for more information.