2.5g Long Range Single Mode Optical Module Batch Delivery_Mountain Surveillance

EB-LINK completes batch delivery of 2.5g long-range single-mode optical modules to support mountain monitoring links

Published: 2025-06-07 EB-LINK Views: 1641 Long-distance optical module, batch delivery, 1550 window, link budget

This month, EB-LINK completed the delivery and code adaptation of a batch of 2.5g single-mode long-distance optical modules for monitoring the backhaul network in a mountainous area, with the longest single-section link approaching 40 kilometers.The difficulty lies in the long distance of a single section, many connection points, and only one pair of available cores. The difficulty

is that the distance is long and

the core is tight The optical cable in the mountainous area is coiled along the road, and the measured length is often 20% or 30% longer than the straight distance of the map.According to the estimate of 0.35 dB/km in the 1310 window, the forty kilometer fiber itself will eat about 14 dB, and with more than a dozen fusion joints and two-end adapters in the connection box, the total loss can easily exceed 17 dB.The project finally dropped the long link in the 1550 window,and selected SFP 2.5g Single Mode Dual Fiber 40km Optical Module, individualwindings are reserved for longer paragraphs SFP 2.5g SingleMode Dual Fiber 80km Optical Module The power margin of. Delivery did threepieces of supporting work

Make the link budget by segment according

to the length of the field measurement, and output the balance table for each segment. The
module writes the code for free according to the requirements of the switching equipment to ensure that
the DDM escalation is normal Shipment only after double optical power retest at normal temperature and high

temperature, with test record Field

results and next steps After the point is turned on, the long-distance closing margin is generally maintained at more than 3 dB, avoiding repeated replacement of the module.The wiring side uses SC/SC single-core jumper and adapter, and the adapter loss in the connection box is controlled within the nominal range.This batch is sent together with the supporting passive devices. Similar long-distance delivery is not the first time. The products have been exported to more than 100 countries and regions. The tunnel and trunk monitoring experience can be usedin A provincial highway tunnel vehicle monitoring system optical fiber project.In the next step, we plan to incorporate the dispersion calculation in the long-range band into the cheat sheet manual to facilitate the direct application of similar projects. If you need to communicate with the program, you can call 0755-83179002.