Moreover, the Nexxt Lan Device Status Identifier can also act as a network device, negotiating with other LAN devices to determine faults. The "auto-negotiation" function provides automatic speed matching for multi-speed devices, allowing devices to configure to the best possible mode of operation over a link. When linked up with another LAN device, the Nexxt Lan Device Status Identifier will provide the followinginformation about that device:

• Whether the link is up or not
• Whether the device is transmitting a packet or not
• Whether the device is working in full duplex mode or half duplex mode
• Whether the device is operating in 100BASE-Tx, 10BASE-T or 100BASE-T4 mode
• Whether a data transmission error has occurred