GE Cyber Secured Service Unit

Cyber Secured Service Unit

Improved Cyber Security for Lentronics SONET/SDH Multiplexers

GE Vernova’s Lentronics™ Cyber Secured Service Unit (CSSU) protects Lentronics Multiplexers against cyber threats, specifically those that target the reliability of the Bulk Electric System (BES). The CSSU is an essential security appliance that takes the place of a legacy Service or IP Service Unit, to better protect against malicious and unintentional network changes. It utilizes defense-in-depth strategies, allowing utilities to meet demanding security standards such as NERC CIP.

Acting as a secure gateway between Lentronics Multiplexers and the Lentronics VistaNET NMS software, CSSUs employ strong AES 256 bit encryption, SSL/TLS and X.509 digital certificates to ensure privacy and authenticity of users attempting to access the network.

Key Benefits

Single hardware platform supporting two operating modes; Legacy and Secure

Legacy mode: Interoperable with existing Service Unit/IPSU

Secure mode: Network-wide AAA supported for improved access control and confidentiality

Eliminates 2kHz tie cables between rings

Extends network domains beyond 100 nodes

Drop-in replacement without SONET/SDH payload traffic disruptions

Supports Dual-Homed NMS paths

Secure access-control with policy replication and distribution for a single, consistent security policy

Prevents unauthorized user actions with hardware-based authorization

RADIUS support for centralized and local authentication

Provides event logging and secure event storage

Provides confidentiality for NMS traffic with strong AES encryption