Technical Communications Corporation's Cipher X 7100 is a Frame Relay encryption device designed for securing communications over Frame Relay networks. It provides encryption for data transmitted across Frame Relay networks, offering protection for sensitive information. The device is managed by the KEYNET 2 Frame Relay Key and Device Management system, which automates centralized key management for a secret distributed key-based encrypted data network secured with Cipher X 7100 Frame Relay encryptors.