THOMAS-CONRAD CORPORATION TC6245-OTP(ORDINARY TWISTED PAIR) NIC Type ARCnet Transfer Rate 2.5Mbps Data Bus 16-bit ISA Topology Star Linear Bus Wiring Type Shielded twisted pair Unshielded twisted pair Boot ROM Available [Image] NODE ADDRESS Node SW2/1 SW2/2 SW2/3 SW2/4 SW2/5 SW2/6 SW2/7 SW2/8 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 AND RECONFIGURATION TIMEOUT Network Cable JP12 JP13 ResponseTime ( Reconfiguration Length m Time (mS) » Less than Open Open 74.7 840 20,000 feet more than Closed Open 283.4 1680 20,000 feet more than Open Closed 561.8 1680 20,000 feet more than Closed Closed 1118.6 1680 20,000 feet Note : All NICs on the network must have these two jumpers set the same. BASE MEMORY ADDRESS Memory SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6 Address » D000h Off Off On Off On On C000h Off Off On On On On C400h Off Off On On On Off C800h Off Off On On Off On CC00h Off Off On On Off Off D400h Off Off On Off On Off D800h Off Off On Off Off On DC00h Off Off On Off Off Off INTERRUPT REQUEST IRQ JP1 JP2 JP3 JP4 JP5 JP20 JP21 JP22 JP23 JP24 JP25 » 9 Open Open Open Open Open Open Open Open Open Open Closed 3 Open Open Open Open Open Closed Open Open Open Open Open 4 Open Open Open Open Open Open Closed Open Open Open Open 5 Open Open Open Open Open Open Open Closed Open Open Open 6 Open Open Open Open Open Open Open Open Closed Open Open 7 Open Open Open Open Open Open Open Open Open Closed Open 10 Open Open Open Open Closed Open Open Open Open Open Open 11 Open Open Open Closed Open Open Open Open Open Open Open 13 Open Open Closed Open Open Open Open Open Open Open Open 14 Closed Open Open Open Open Open Open Open Open Open Open 15 Open Closed Open Open Open Open Open Open Open Open Open WAIT STATE Setting SW1/7 » Zero wait states disabled On Zero wait states enabled Off COMPATABILITY MODE Mode SW1/8 » Enhanced mode On Compatible mode Off Note: Enhanced mode optimizes performance and minimizes conflicts of your hardware, by using a Thomas-Conrad BLOCK DECODE Size JP7 » 16K memory block decode Pins 1 & 2 Closed 128K memory block decode Pins 2 & 3 Closed Note:A 16-bit VGA adapter typically decodes base memory in 128K blocks. If you are installing the NIC in a system with such a card, you may need to set the NIC block decode size to 128K. If you set the block decode size to 128K then all other adapters in the system must also utilize 128K decode. I/O BASE ADDRESS I/O SW3/1 SW3/2 SW3/3 SW3/4 SW3/5 SW3/6 SW3/7 SW3/8 » 2E0h On On Off On Off Off Off On 2F0h On On Off On Off Off Off Off 300h On On Off Off On On On On 310h On On Off Off On On On Off 320h On On Off Off On On Off On 330h On On Off Off On On Off Off 340h On On Off Off On Off On On 350h On On Off Off On Off On Off 360h On On Off Off On Off Off On 370h On On Off Off On Off Off Off 380h On On Off Off Off On On On 390h On On Off Off Off On On Off 3A0h On On Off Off Off On Off On 3B0h On On Off Off Off On Off Off 3C0h On On Off Off Off Off On On 3D0h On On Off Off Off Off On Off 3E0h On On Off Off Off Off Off On 3F0h On On Off Off Off Off Off Off Note: When operating in enhanced mode it is not necessary to set the I/O address. [Image] DIAGNOSTIC LED(S) LED Color Status Condition 1 Red On Data is being transmitted or receiving 1 Green On Card is not configured correctly 2 Green Blinking Card is configured correctly and is connected to network 2 N/A Off Card is defective or not connected to network MISCELLANEOUS NOTES Note:Not all components are as shown on later card revisions.