Frontier Corp. (Rochester, NY) announced its Optronics Network is the first of the emerging next-generation networks to deploy and operate 4-fiber BLSR technology. The BLSR technology from NEC Corp. (Tokyo) provides protection switching and network survivability, while DWDM provides additional capacity. NEC`s self-healing BLSR, named the ITS-2400V, provides Frontier with access to more redundant fiber spans and equipment protection than available with either 2-fiber ring systems or linear back-to-back systems.