Overview
The NPort® 6450 is a 4-port device server that uses the SSL and SSH protocols to transmit encrypted serial data over Ethernet. Up to 4 serial devices of any type can be connected to the NPort® 6450, witn all four devices using the same IP address. The Ethernet port can be configured for a normal or secure TCP/IP connection.

No Data Loss if Ethernet Connection Fails
The NPort® 6450 is a reliable device server that provides users with secure serial-to-Ethernet data transmission and a customer-oriented hardware design. If the Ethernet connection fails, the NPort® 6450 will queue all serial data in its internal 64 KB port buffer. When the Ethernet connection is re-established, the NPort® 6450 will immediately release all data in the buffer in the order that it was received. Users can increase the port buffer size by installing an SD card.

NPort_6450

Overview
The 2-port NPort® 6250 device servers use the SSL and SSH protocols to transmit encrypted serial data over Ethernet. Models are available for connecting to a 10/100BaseTX copper Ethernet or 100BaseTX fiber network. Both single-mode and multi-mode fiber are supported.

Zero Data Loss if Ethernet Connection Fails
The NPort® 6250 device servers help guarantee reliability by providing users with secure serial-to-Ethernet data transmission and a customer-oriented hardware design. If the Ethernet connection fails, the NPort® 6250 will queue all serial data in its internal 64 KB port buffer. When the Ethernet connection is re-established, the NPort®6250 will immediately release all data in the buffer in the order that it was received. Users can increase the port buffer size by installing an SD card.

NPort_6250_Series

Overview
Redundancy is an important issue for industry, and several different solutions have been developed to prevent damage caused by equipment or software failures. “Watchdog” hardware is required to utilize redundant hardware, and a “Token” switching mechanism is required for software. The CN2600 terminal server uses its built-in dual-LAN ports to implement a “redundant COM” mode that keep your applications running smoothly.

Dual-LAN Redundancy
The CN2600 has two separate LAN ports that can be connected to separate LAN networks. Dual-LAN redundancy involves setting up two separate physical networks to connect the PC host with the CN2600. In this case, the PC host must also be installed with two LAN cards. If one of the networks fails, the PC host will still be able to communicate with your serial devices over the redundant LAN.

Redundant COM
The “Redundant COM” (patent pending) operation mode can be used to set up a redundant LAN between the CN2600’s COM ports and the host computer. The redundant structure involves using the CN2600’s two LAN ports to set up two independent LANs that connect the CN2600 to the host computer. If either of the two LANs fails, the other LAN will continue transmitting packets between the serial devices and the host, with the data transmitted through the CN2600. One of the biggest advantages of using Moxa’s Redundant COM mode is that the “switching time” is zero. What this means is that if one of the LANs fails, data transmission between the PC host the serial devices will not be interrupted.

Dual-host Redundancy
The CN2600’s dual LAN cards can also be used to set up “dual-host” redundancy. In this case, both networks (LAN A and LAN B in the figure) are connected to two different hosts. If either of the two hosts shuts down unexpectedly, the other host will continue transmitting packets to (and receiving packets from) the serial devices connected to the CN2600.

Dual-AC Model Supported
Dual-power redundancy uses two power inputs and redundant internal power supplies to ensure that the CN2600’s console port, serial ports, and LAN ports will be available, even in the event of power circuit failure

CN2600_Series

Overview
Remote Device Console Management
For most companies, the performance of IT equipment plays a decisive role in daily operation. To keep a server, router, PBX, or leased line modem working properly, least downtime and instant troubleshooting are important. For many IT devices, a KVM switch is used to manage the device with a keyboard and monitor located next to the device. However, an RS-232 console port—something which most IT devices have—can be used for Remote Console Management.

CN2510 provides an easy-to-use console port management solution that comes in a convenient 1U rack-mountable size. CN2510 can easily establish a console management environment with servers, routers, and other network equipment. CN2510 turns the RS-232 console port of the device into a network-accessible node, allowing you to use Telnet to configure and manage the device from anywhere on the network.

In-Band and Out-of-Band Network Management
In-Band Network Management refers to using Telnet over a network, such as an office LAN or the Internet, to open a connection to a device that has a console port. By connecting the RS-232 console port to one of CN2510′s serial ports, you can access the device over the network with a specific IP:Port combination. This type of setup allows you to monitor and manage devices that have an RS-232 console port from any network host over an Ethernet or Wireless LAN network.

Out-of-Band Network Management refers to when an alternate path for remote access, such as a dial-up line or ISDN line, is used to reach network devices. Out-of-Band Network Management is needed when you’re unable to reach the device via the network connection, such as when the network is down. Another situation for which Out-of-Band network management is needed is when the device itself crashes. For example, many web servers can be managed directly via the server’s Ethernet port, or through the server’s console port. If the server crashes, you won’t be able to access the server using the preferred “over the network” method. However, the server will still be accessible via its RS-232 console port, allowing the manager to reboot the server and get it back online.

Stand-alone RAS Service
CN2510 supports PPP/SLIP dial-up ports, letting you connect to your network devices from a remote site. Even when you are away from the office, you will still have full control of all devices in your company’s server room.

From a hardware point of view, CN2510 is easy to install, and is complemented by powerful software features, which include security, authorization, IP routing, and management functions that provide MIS personnel with a simple and convenient way to monitor and control target devices located in a data center or control room.

CN2510_Series

Overview
The NPort® 6600 series of secure device servers is the right choice for applications that use large numbers of serial devices packed into a small space. If you’re worried about security, you can rest assured with the NPort® 6600, since it supports DES, 3DES, and AES, the three most common standards for data encryption. Serial devices of any type can be connected to the NPort® 6600, and each serial port on the NPort® can be configured independently for RS-232, RS-422, or RS-485 transmission.

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