GATEWAY COMMUNICATIONS, INC. G/NET (REV.04 OR ABOVE) NIC Type G-Net Transfer Rate 2.5Mbps Data Bus 8-bit ISA Topology Linear Bus Wiring Type RG-11/U 75ohm coaxial RG-59/U 75ohm coaxial RG-58/U 50ohm coaxial RG-62A/U 93ohm coaxial Wang style RG-59/U 75ohm dual coaxial Boot ROM Not available (optional card required) [Image] CONNECTORS Purpose Location Piggy-back Keycard CN1 CABLE TYPE SELECTION Type JP1 » RG11/U 75ohm or RG-59/U 75ohm Pins 2 & 3 Closed RG-58/U 50ohm Pins 1 & 2 Closed RG-62A/U 93ohm Open INTERRUPT REQUEST IRQ JP2 JP3 » 3 Pins 1 & 2 Closed Open 2 Open Pins 2 & 3 Closed 4 Pins 2 & 3 Closed Open 5 Open Pins 1 & 2 Closed NODE ADDRESS SELECTION 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 Notes: 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) BASE MEMORY BUFFER ADDRESS Address SW2/1 SW2/2 SW2/3 SW2/4 » D0000h Off On Off Off 50000h Off On Off On 60000h On Off Off On 70000h Off Off Off On 80000h On On On Off 90000h Off On On Off A0000h On Off On Off C0000h On On Off Off E0000h On Off Off Off I/O BASE ADDRESS Address SW2/5 SW2/6 SW2/7 SW2/8 » 2E0h-2E7h On On On On 280h-287h On On On On 290h-297h Off On On On 2A0h-2A7h On Off On On 2B0h-2B7h Off Off On On 200h-207h On On Off On 2D0h-2D7h Off On Off On 2F0h-2F7h Off Off Off On 300h-307h On On On Off 310h-317h Off On On Off 320h-327h On Off On Off 330h-337h Off Off On Off 340h-347h On On Off Off 350h-357h Off On Off Off 360h-367h On Off Off Off 370h-377h Off Off Off Off