CNET TECHNOLOGY, INC. CN190SBT NIC Type ARCnet Transfer Rate 2.5Mbps Data Bus 16-bit ISA Topology Star Linear Bus Wiring Type Unshielded twisted pair RG-62A/U 93ohm coaxial Boot ROM Available [Image] NODE ADDRESS Node SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6 SW1/7 SW1/8 0 - - - - - - - - 1 Off On On On On On On On 2 On Off On On On On On On 3 Off Off On On On On On On 4 On On Off On On On On On 251 Off Off On Off Off Off Off Off 252 On On Off Off Off Off Off Off 253 Off On Off Off Off Off Off Off 254 On Off Off Off Off Off Off Off 255 Off Off Off Off Off Off Off Off Note: Node address 0 is used for messaging between nodes and must not be used. A total of 255 node address settings are available. The switches are a binary representation of the decimal node addresses. Switch 1 is the Least Significant Bit and switch 8 is the Most Significant Bit. The switches have the following decimal values: switch 1=1, 2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128. Turn off the switches and add the values of the off switches to obtain the correct node address. (On=0, off=1) RESPONSE/RECONFIGURATION TIMEOUTS Response Time Reconfiguration Time JP1 JP2 74.7µs 840ms Open Open 283.4µs 1680ms Closed Open 561.8µs 1680ms Open Closed 1118.6µs 1680ms Closed Closed Note: All NICs on the network segment must have this option set the same. INTERRUPT REQUEST IRQ JP3 JP4 JP5 JP6 JP7 JP9 JP10 JP11 JP12 JP14 JP15 » 3 Closed Open Open Open Open Open Open Open Open Open Open 4 Open Closed Open Open Open Open Open Open Open Open Open 5 Open Open Closed Open Open Open Open Open Open Open Open 6 Open Open Open Closed Open Open Open Open Open Open Open 7 Open Open Open Open Closed Open Open Open Open Open Open 9 Open Open Open Open Open Closed Open Open Open Open Open 10 Open Open Open Open Open Open Closed Open Open Open Open 11 Open Open Open Open Open Open Open Closed Open Open Open 12 Open Open Open Open Open Open Open Open Closed Open Open 14 Open Open Open Open Open Open Open Open Open Closed Open 15 Open Open Open Open Open Open Open Open Open Open Closed CABLE TYPE Type JP16 & JP17 » Unshielded twisted pair Pins 1 & 2 closed RG-62A/U 93ohm coaxial Pins 2 & 3 closed ONBOARD TERMINATOR Setting JP18 » Disabled Pins 2 & 3 closed Enabled Pins 1 & 2 closed Notes:If the card is on either end of a linear bus network segment, the onboard terminator may be used instead of using an external terminator. I/O BASE ADDRESS Address SW2/1 SW2/2 SW2/3 SW2/4 200h On On On On 220h On On On Off 240h On On Off On 260h On On Off Off 280h On Off On On 2A0h On Off On Off 2C0h On Off Off On 2E0h On Off Off Off 300h Off On On On 320h Off On On Off 340h Off On Off On 360h Off On Off Off 380h Off Off On On 3A0h Off Off On Off 3C0h Off Off Off On 3E0h Off Off Off Off BASE MEMORY ADDRESS & BOOT ROM ADDRESS Base Address Boot ROM SW2/5 SW2/6 SW2/7 SW2/8 Address C0000h C4000h Off On On On C8000h CC000h Off On On Off » D0000h D4000h Off On Off On D8000h DC000h Off On Off Off E0000h E4000h Off Off On On DIAGNOSTIC LED(S) LED Status Condition LED1 On Data is being transmitted or received LED1 Off Data is not being transmitted or received FACTORY CONFIGURED SETTINGS Jumper Setting JP1 Open JP2 Open