NEC UB283-0A00 SpectralWave U-Node Sync Master Unit

Feature & Principle

This module receives GNSS or external 1PPS/10MHz reference clock, generates stable timing signals and IEEE1588 PTP grandmaster time source. It distributes synchronous clock to each service card inside the U-Node chassis, ensures frequency and time alignment of optical transmission services, supports holdover mode when external reference is lost.

Specifications

Model: UB283-0A00 Brand: NEC Series: SpectralWave U-Node Function: Sync Master timing & PTP grandmaster Reference input: GNSS, 1PPS, 10MHz Protocol: IEEE1588 PTP, SyncE Mounting: Chassis hot-swappable card slot Certification: CE, Telcordia

Components & Diagnostics

Clock oscillator unit, PTP processing chip, GNSS receiver circuit, backplane interface, status LED indicators. Common faults: reference loss, holdover clock drift, PTP synchronization offset, chassis communication failure.

Product Brief

UB283-0A00 synchronization master module, NEC optical transmission spare widely used for telecom backbone SpectralWave network timing synchronization maintenance.