EVEREX SYSTEMS, INC. SPEEDARC (VER.1.0) NIC Type ARCnet Network Transfer Rate 2.5Mbps Data Bus 8-bit ISA Topology Linear Bus Wiring Type RG-58A/U 50ohm coaxial Boot ROM Available (location unidentified) [Image] CONNECTIONS Function Label RG-58A/U 50ohm coaxial port CN1 BASE I/O ADDRESS SELECTION Address JP2/6 JP2/7 JP2/8 260-26Fh On On On 290-29Fh On On Off 2E0-2EFh On Off On 2F0-2FFh On Off Off 300-30Fh Off On On 350-35Fh Off On Off 380-38Fh Off Off On 3E0-3EFh Off Off Off INTERRUPT SELECTION IRQ JP1/A JP1/B JP1/C JP1/D JP1/E » 2 Open Open Open Open Closed 3 Open Open Open Closed Open 4 Open Open Closed Open Open 5 Open Closed Open Open Open 7 Closed Open Open Open Open NODE ADDRESS Node JP/1 JP1/2 JP1/3 JP1/4 JP1/5 JP1/6 JP1/7 JP1/8 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 5 Off 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: A total of 255 node address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/8 is the Most Significant Bit and switch SW1/1 is the Least Significant Bit. The switches have the following decimal values: SW1/8=128, SW1/7=64, SW1/6=32, SW1/5=16, SW1/4=8, SW1/3=4, SW1/2=2, SW1/1=1. Turn off the switches and add the values of the switches to obtain the correct memory address. BOOT ROM CONFIGURATION Setting JP1/H » Disabled Open Enabled Closed EXTENDED TIMEOUTS SELECTION Response Idle Reconfiguration JP1/F JP1/G Time Time Time » 78 86 840 Open Open 285 316 1680 Open Closed 563 624 1680 Closed Open 1130 1237 1680 Closed Closed RAM/PROM ADDRESS SELECTION RAM Address PROM JP2/1 JP2/2 JP2/3 JP2/4 JP2/5 Address C:0000h - C:2000h - On On On On On C:07FFh C:3FFFh C:0800h - C:2000h - On On On On Off C:0FFFh C:3FFFh C:1000h - C:2000h - On On On Off On C:17FFh C:3FFFh C:1800h - C:2000h - On On On Off Off C:1FFFh C:3FFFh C:4000h - C:6000h - On On Off On On C:47FFh C:7FFFh C:4800h - C:6000h - On On Off On Off C:4FFFh C:7FFFh C:5000h - C:6000h - On On Off Off On C:57FFh C:7FFFh C:5800h - C:6000h - On On Off Off Off C:5FFFh C:7FFFh C:C000h - C:E000h - On Off On On On C:C7FFh C:FFFFh C:C800h - C:E000h - On Off On On Off C:CFFFh C:FFFFh C:D000h - C:E000h - On Off On Off On C:D7FFh C:FFFFh C:D800h - C:E000h - On Off On Off Off C:DFFFh C:FFFFh » D:0000h - D:2000h - On Off Off On On D:07FFh D:3FFFh D:0800h - D:2000h - On Off Off On Off D:0FFFh D:3FFFh D:1000h - D:2000h - On Off Off Off On D:17FFh D:3FFFh D:1800h - D:2000h - On Off Off Off Off D:1FFFh D:3FFFh D:4000h - D:6000h - Off On On On On D:47FFh D:7FFFh D:4800h - D:6000h - Off On On On Off D:4FFFh D:7FFFh D:5000h - D:6000h - Off On On Off On D:57FFh D:7FFFh D:5800h - D:6000h - Off On On Off Off D:5FFFh D:7FFFh D:8000h - D:A000h - Off On Off On On D:87FFh D:BFFFh D:8800h - D:A000h - Off On Off On Off D:8FFFh D:BFFFh D:9000h - D:A000h - Off On Off Off On D:97FFh D:BFFFh D:9800h - D:A000h - Off On Off Off Off D:9FFFh D:BFFFh D:C000h - D:E000h - Off Off On On On D:C7FFh D:FFFFh D:C800h - D:E000h - Off Off On On Off D:CFFFh D:FFFFh D:D000h - D:E000h - Off Off On Off On D:D7FFh D:FFFFh D:D800h - D:E000h - Off Off On Off Off D:DFFFh D:FFFFh E:0000h - E:2000h - Off Off Off On On E:07FFh E:3FFFh E:0800h - E:2000h - Off Off Off On Off E:0FFFh E:3FFFh E:1000h - E:2000h - Off Off Off Off On E:17FFh E:3FFFh E:1800h - E:2000h - Off Off Off Off Off E:1FFFh E:3FFFh