KATRON TECHNOLOGIES, INC. 520C NIC Type Ethernet Transfer Rate 10Mbps Data Bus PCMCIA Topology Linear Bus Star Wiring Type RG-58A/U 50ohm coaxial Unshielded twisted pair Boot ROM Not available [Image] DIAGNOSTIC LED(S) LED Color Status Condition LED1 Yellow On Twisted pair network connecton is good LED1 Yellow Off Twisted pair network connection is broken LED2 Green On Card is configured and receiving power LED2 Green Blinking Data is being transmitted LED2 Green Off Card is not configured and/or not receiving power