Lighting up MDUs from one Positron unit, without rewiring.

A fiber operator needed to light up multi-dwelling units on a board-approved rollout schedule. Two things stood in the way: existing Calix workflows could not specify a target port, and rewiring individual apartments with new fiber was cost-prohibitive.

Sonar's Professional Services team built port-aware provisioning through event-driven middleware. Sonar listens for account activations, service changes, and item movement, then calls Calix to provision the correct Positron port. The integration extends the customer's existing Calix workflows rather than replacing them, preserving the operational muscle memory their team already had.

Items use a distinct Sonar_Positron naming convention with email alerts on key provisioning events. The operator can now light up entire buildings from a single Positron unit, with clean port mapping per apartment. Fiber enters at the demarc and the existing in-building wiring does the rest.

The build was delivered in roughly 4.5 weeks, with production validation in the customer's lab and real-world field tests at gig speeds.