TIARA COMPUTER SYSTEMS, INC. LanCard/A * AT NIC Type ARCnet Transfer Rate 2.5Mbps Data Bus 16-bit ISA Topology Star Wiring Type RG-62A/U 93ohm coaxial Boot ROM Available [Image] NODE ADDRESS Node SW4/1 SW4/2 SW4/3 SW4/4 SW4/5 SW4/6 SW4/7 SW4/8 0 - - - - - - - - 1 Off Off Off Off Off Off Off On 2 Off Off Off Off Off Off On Off 3 Off Off Off Off Off Off On On 4 Off Off Off Off Off On Off Off 251 On On On On On Off On On 252 On On On On On On Off Off 253 On On On On On On Off On 254 On On On On On On On Off 255 On On On On On On On On 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 8 is the Least Significant Bit and switch 1 is the Most Significant Bit. The switches have the following decimal values: switch 8=1, 7=2, 6=4, 5=8, 4=16, 3=32, 2=64, 1=128. Turn on the switches and add the values of the on switches to obtain the correct node address. (On=1, Off=0) INTERRUPT REQUEST IRQ JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 JP10 JP11 » 2 Open Open Open Open Open Closed Open Open Open Open Open 3 Open Open Open Open Open Open Open Open Open Open Closed 4 Open Open Open Open Open Open Open Open Open Closed Open 5 Open Open Open Open Open Open Open Open Closed Open Open 6 Open Open Open Open Open Open Open Closed Open Open Open 7 Open Open Open Open Open Open Closed Open Open Open 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 12 Open Open Closed Open Open Open Open Open Open Open Open 14 Open Closed Open Open Open Open Open Open Open Open Open 15 Closed Open Open Open Open Open Open Open Open Open Open DIAGNOSTIC CONFIGURATION Setting JP12 » Enhanced diagnostics disabled Pins 1 & 2 Closed Enhanced diagnostics enabled Pins 2 & 3 Closed Note:The enhanced diagnostics are compatible only with the driver that was shipped with this card. When the diagnostics are enabled, features such as an ARCnet duplicate Node ID search are activated. BOOT ROM Setting SW1/1 » Disabled Off Enabled On RIM BUFFER ADDRESS CONFIGURATION Buffer SW1/2 SW1/3 SW1/4 SW1/5 SW1/6 SW1/7 SW1/8 Address xC0OOh Off On On Off Off Off Off xC4OOh Off On On Off Off Off On xCCOOh Off On On Off Off On On xD0OOh Off On On Off On Off Off xD4OOh Off On On Off On Off On xD8OOh Off On On Off On On Off xDCOOh Off On On Off On On On xE000h Off On On On Off Off Off Notes: Place one digit from the next table in front of the address given above to get the complete Address. EXTENDED TIMEOUT CONFIGURATION Distance Response Reconfiguration SW2/1 SW2/2 Time » 4.8 miles 74.7µs 840ms On On 21.0 283.4µs 1680ms On Off miles 42.5 561.8µs 1680ms Off On miles 85.6 1118.6µs 1680ms Off Off miles Note: The distance given is the maximum distance between the two furthest nodes on the network. I/O BASE ADDRESS Address SW2/3 SW2/4 SW2/5 SW2/6 SW2/7 SW2/8 » 2E0h On Off On On On Off 260h On Off Off On On Off 290h On Off On Off Off On 2B0h On Off On Off On On 300h On On Off Off Off Off 350h On On Off On Off On 380h On On On Off Off Off 3E0h On On On On On Off RIM BUFFER EXTENDED ADDRESS CONFIGURATION Segment SW3/1 SW3/2 SW3/3 SW3/5 SW3/6 SW3/7 SW3/8 » 0xxxx On Off Off Off Off Off Off 1xxxx On Off Off Off Off Off On 2xxxx On Off Off Off Off On Off 3xxxx On Off Off Off Off On On 4xxxx On Off Off Off On Off Off 5xxxx On Off Off Off On Off On 6xxxx On Off Off Off On On Off 7xxxx On Off Off Off On On On 8xxxx On Off Off On Off Off Off 9xxxx On Off Off On Off Off On Axxxx On Off Off On Off On Off Bxxxx On Off Off On Off On On Cxxxx On Off Off On On Off Off Dxxxx On Off Off On On Off On Exxxx On Off Off On On On Off Fxxxx On Off Off On On On On Note: Place the digit found in this table in front of the address given on the previous table to get the complete RIM buffer address. A setting other than zero in this table will place the buffer into extended memory at the aforementioned address. For example, a setting of 2 will place the buffer into the 2nd megabyte of extended memory, a setting of C will place the buffer into the 12th megabyte of extended memory. Starting from the base address. make sure that the next 16 to 128KB of memory (see above notes) are not used. Important: The software drivers supplied with this card do not support extended memory. DIAGNOSTIC LED(S) LED Color Status Condition L1 Red On Data is being received L1 Red Off Data is not being received L1 Red Blinking Card is reconfiguring L2 Green On Data is being transmitted L2 Green Off Data is not being transmitted L2 Green Blinking Card is reconfiguring