FROM THE INDUSTRY
Where deployed, fibre capacity can be readily expanded through solutions such as Dense Wave Division Multiplexing (DWDM) without the need to place additional fibre, saving time and money while ensuring more responsive service for both new and existing customers. However, the distribution network may be constrained by the capacity available in its outside plant (OSP) splice closures, particularly those that are near or have already reached their limit. The need to provide a new closure as capacity is added to a fibre route represents a significant investment in terms of both time and placement and splicing costs. At Amphenol Broadband Solutions, we expand the fibre capacity with a DWDM solution that combines simplicity, security and reliability. Its new OSP AOM (Advanced Optical Module) is designed to handle high channel counts in a package that maximises the capacity of many popular OSP closures. By leveraging previously unused space within the closure, the OSP AOM devices can potentially eliminate the need for additional closures, saving deployment costs. The OSP AOM joins the previously introduced HiDT xWDM packaging to offer solutions from 4 to 40 channels within a single form factor. The smaller HiDT is used in applications with channel counts of 8 or less, while the OSP AOM supports higher channel counts, scaling
up to 48. Both packages provide stable optical performance across the wide operating temperature range required for OSP deployment. A carefully planned set of accessories facilitates secure, reliable placement of the OSP AOM inside many of the most popular OSP closures. Unlike the typical approach of securing DWDM devices in OSP closures using Velcro, tape or other makeshift solutions, every OSP AOM is mechanically mounted, providing an audible “click” to ensure safe, long-term service that will not become insecure due to temperature changes, re-opening of the closure or other environmental factors. This added security results in cost savings by reducing potential trouble situations throughout the life of the DWDM device. As an example of its versatility, the OSP AOM has two installation options within a widely deployed, industry-standard OSP closure. The first method places the module within the stack of splice trays inside the closure. To accomplish this, the module is snap-mounted in a module mounting bracket, which snaps onto the closure’s “tower,” occupying a tray slot within the closure. The second installation approach places the OSP AOM in the closure’s “slack basket.” In this configuration, the module is snapped into a mounting bracket, which is then secured using permanently open tower positions within the slack basket. Up to two OSP AOM modules may be added to a closure using this method. The
traditional function of the basket remains unaffected, as any slack stored there is typically dressed towards the basket’s outer walls, leaving the centre available for the module(s). This approach provides greater capacity within the closure than what is typically offered by the closure manufacturer. The OSP AOM provides convenient test ports at the most accessible end of the closure, eliminating the need to navigate test access points located on splice trays or among inter-tray fibres at the cable end of the closure. Field technicians will appreciate the convenience of these test ports, which save time and directly impact operational expenses. The OSP AOM Modules offer broadband service providers a cost-effective way to increase the capacity of embedded fibre cable assets. By utilising unused space within previously deployed OSP closures, each OSP AOM can provide up to 48 additional fibre channels. Mechanical mounting ensures that the OSP AOM and its connections are securely protected from disturbances that commonly affect other attachment methods. Finally, the convenient location of ports ensures hassle-free test access for technicians, enhancing network efficiency and reliability.
www.amphenolbroadband.com
MARCH 2025 Volume 47 No.1
49
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