1.Overview
Norma physical one-way transmission system protects user’s core security of individual network system, ensures information securely transmit between internal and external net.
This system is use to connecting two different security level of network devices. It ensures a reliable one-way data transmission from one network to another.
This system transmit the data through specify physical one-way channel from physical link layer, data are not transmitted between the two through the IP protocol but by use of unique physical transmission devices and transmission protocol. The characteristics of one-way between two sides is determinate by a physical device; so there is no info packet, command or other protocol that could reversely penetrate Norma physical one-way transmission system, preventing malicious scanning, interception, penetration and attack by a variety of known and unknown viruses and Trojan fundamentally, ensuring that intranet cannot be access by external network in the transmission process with right intentions.
The system can fundamentally solve the problem of “between-net security”.
2.Main functions and features
- Achieve reliable unidirectional data transmission in the physical way between two security sections;
- Support one-end-in one-end-out TCP forwarding mode and two-end-in TCP forwarding mode;
- Two TCP forwarding modes support SSL, the identity is distinguished by certificate;
- Support positive application and reverse application simultaneously;
- Support the serial command line configuration, secure and convenient maintenance and management;
- The dual power supplies of the system work stably and reliably at the same time;
- Single link applications support dual machine thermal backup;
- Multi-link applications support bandwidth binding and multi-machine thermal backup in multi-device parallel way.
3.Application field
In both intranet and internet. At present, according to the actual resources, the company first launches physical unidirectional products for the State Grid.