Safe Data Communication

Secure data communication with SSL
Network security is a critical issue for certain applications, and is especially important when data is transmitted over the Internet where it is vulnerable to interception by third parties. The NPort 6000 device servers use SSL to implement secure data transmission for Secure TCP Server, Secure TCP Client, Secure Pair Connection, and Secure Real COM modes. The NPort's drivers follow the SSL standard and automatically negotiate the encryption key, and to prevent hacker attacks, the NPort will automatically switch from DES/3DES to AES encryption.

Secure remote management and configuration with SSH and SSL
Unauthorized access is a major concern for system managers, and the NPort 6000 device servers help control access by supporting IP filtering and password protection. Extra protection from hackers is also provided by SSH and SSL. Secure configuration of the NPort 6000 is provided by opening the web console with a web browser that supports https (e.g., Internet Explorer), or by opening the Telnet console using a terminal emulator that supports SSH (e.g., PuTTY).

Powerful hardware encryption engine
A powerful hardware encryption engine that supports the complete DES/3DES/AES encryption algorithms is built into the NPort 6000. For DES and 3DES encryption, the NPort 6000 supports ECB, CBC, CFB, and OFB modes. For AES encryption, the NPort 6000 supports ECB, CBC, CFB, OFB, and CTR modes with a 128-bit, 192-bit, or 256-bit key.

Reliable Data Communication

Port buffering that preserves data if the network fails
For mission-critical applications, data collected from a serial device must be safeguarded in case the Ethernet network gets disconnected. The NPort 6000 provides exceptionally reliable data transmission by saving serial data to an internal 64 KB port buffer if the Ethernet connection fails. When the network is reconnected, data in the buffer is automatically released and sent to the appropriate destination. For the NPort 6250, 6450, and 6650, this buffer can be expanded by installing an SD card.

Ethernet Ring topology with fast recovery
NPort 6000 device servers support the Turbo Ring protocol for cascade topologies. With Turbo Ring, if any segment of the daisy-chain ring is disconnected, the network will recover in less than 300 ms.

Flexible and Easy to Use Design

Supports ADSL dial-up and DDNS
When serial devices are connected to an NPort 6000 device server, any networked computer can be used to control the devices over an Ethernet network, intranet, or the Internet. Connections can be established using different operation modes, such as Real COM/TTY, TCP Server, and TCP Client. The NPort 6000 also supports PPPoE for ADSL connections, and DDNS can be used to help locate NPort 6000 device servers on the network. In addition, fiber optic models are available to extend the Ethernet connection distance.

Select ''Any Baudrate'' between 50 bps and 921.6 Kbps
Engineers who use serial devices know that most device servers only support ''standard'' baudrates. However, some applications require special baudrates, such as 250 Kbps or 500 Kbps. One of the advantages of the NPort 6000 device servers is that you can use essentially any baudrate between 50 bps and 921.6 Kbps. The NPort 6000 will provide flawless performance even when used with serial devices that require special baudrates.

''Command by command'' mode
For applications that require multiple hosts to communicate with one serial device, it is often necessary to require the NPort to issue one command at a time. What this means is that after the NPort issues a command, it waits for the next request before issuing another command. In other words, the NPort issues a command, waits for a request, issues a command, waits for a request, and so on. The ''command by command'' mode is designed specifically for this kind of multi-host application. With command by command mode, after issuing each command, the NPort 6000 waits for a response before sending out the next command.

Two powerful utilities
The NPort Search Utility and NPort Driver Manager make it easy for users to build a new system. After connecting the NPort 6000 to your computer, or to a local network, use the NPort Search Utility to search and load web console settings. After that, the NPort Driver Manager can be used to map NPort 6000 serial ports to Windows COM ports.