Abstract: The present disclosure is directed to a ladder guide device. A guide device may include at least one hook configured to couple to a ladder. The guide device may also include at least one surface configured to guide an object over a discontinuity in the ladder as the object moves in a direction parallel to a longitudinal axis of the ladder.

Abstract: A line card is provided for a mechanical enclosure unit for an optical network unit. The line card includes a printed circuit board, a mechanical enclosure and a connector element. The mechanical enclosure substantially surrounds and support the printed circuit board. The connector element, which is coupled to provide access to the printed circuit board, is exposed at a surface of the mechanical enclosure. The line card further includes a fastener coupled to the mechanical enclosure. The fastener is adapted to hold the mechanical enclosure on an external support plate of the mechanical enclosure unit of the optical network unit.

Abstract: A mechanical enclosure for an optical network unit (ONU). The enclosure includes a frame having a first opening and a second opening opposite the first opening. A partition divides the frame into a first compartment which houses the electronics and optics of the ONU, and a second compartment which houses drop terminal blocks and coaxial cable ports of the ONU. Each compartment has a dedicated door to provide access to the associated compartment. Water-tight seals are provided for each element which passes through the partition, thereby providing electronics/optics compartment with a water-tight environment. Drop cables leave the ONU enclosure through grommets which are held in the second compartment of the frame. The mechanical enclosure includes a support plate which supports various electronics/optics circuitry and a mounting plate which supports drop terminal blocks. Mounting brackets enable the enclosure to be mounted either vertically or horizontally.