Black Box NBSALL8MGR 24-Port Gang Switch, 19" Rackmount

Overview :

Use this Black Box NBSALL8MGR Layer 1 switching system to add network backup and failover switching to your data networks. It's ideal for mission-critical applications, including classified information and military systems, broadcast networks, and stock exchanges. With the Pro Switching System 1U NBS, it's very simple to switch all users from the main network to a backup network. Locally, this is done using a momentary toggle switch on the chassis' front or from a serial RS-232 workstation. But it also supports control from a remote workstation via its 10BASE-T Ethernet port. Through this TCP/IP connection, you can switch and monitor the system's circuits using Telnet, SNMP, or a Web browser link. 

The NBSALL8MGR switching system also features auto bypass and auto-recovery functions. If the "normal" network paths between the chassis and the device being monitored go down for any reason, the chassis will automatically switch from the normal connection state to the bypass or failover connection state. This model switches all eight leads on the RJ-45 ports. It's designed for use in 10BASE-T/100BASE-TX/1000BASE-TX Ethernet networks, for switching RS-232 circuits that use both data and hardware handshake leads, or any application that requires the use of more than four leads. (We also offer models that switch just Pins 1/2 and 3/6 of the RJ-45 connectors.) Each switching circuit has a common (C) port that's latched to its associated A or B port, which means it passes signals even if the chassis is without AC power. Because its relays are physically latched into position, once a position is set, it stays set.