Ericsson FSU 975FA fusion splicer repair

The Ericsson FSU 975FA is a fully automatic core-alignment splicer - faster than the PM-series models, optimized for high-throughput standard SM and multimode splicing in telecom deployment and network maintenance. The FA designation means the alignment cycle runs automatically without operator intervention for axis positioning. These units logged millions of splices in telecom field work and are durable; they also need service.

High splice counts accelerate electrode wear faster on the FA series than on PM splicers because the faster cycle time means more arcs per hour. Electrode wear shows up as arc instability or high splice loss before the arc count counter suggests service is needed. Motor wear from rapid, repeated alignment cycles causes X/Y positioning drift over time. V-groove contamination from field environments is nearly universal on FA units that haven’t been serviced.

We test on SM and multimode test fibers, check arc stability, alignment speed and accuracy, splice loss, and V-groove seating. Electrode replacement, V-groove cleaning, motor recalibration, and arc calibration follow. Splice performance verification on test fibers confirms the repair.

Flat-rate estimate: $100. Turnaround 1–3 days. Ships worldwide.