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PCARC
NETWORK INTERFACE TECHNOLOGY CORPORATION
PCARC
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NIC Type
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Arcnet
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Transfer Rate
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2.5Mbps
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Data Bus
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8-bit ISA
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Topology
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Star
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Wiring Type
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RG-62A/U 93ohm coaxial
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Boot ROM
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Available
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NODE ADDRESS SELECTION
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Address
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SW3/1
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SW3/2
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SW3/3
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SW3/4
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SW3/5
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SW3/6
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SW3/7
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SW3/8
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0
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On
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On
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On
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On
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On
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On
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On
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On
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1
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On
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On
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On
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On
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On
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On
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On
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Off
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2
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On
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On
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On
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On
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On
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On
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Off
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On
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3
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On
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On
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On
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On
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On
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On
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Off
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Off
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4
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On
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On
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On
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On
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On
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Off
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On
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On
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251
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Off
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Off
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Off
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Off
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Off
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On
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Off
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Off
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252
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Off
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Off
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Off
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Off
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Off
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Off
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On
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On
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253
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Off
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Off
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Off
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Off
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Off
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Off
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On
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Off
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254
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Off
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Off
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Off
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Off
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Off
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Off
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Off
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On
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255
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Off
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Off
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Off
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Off
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Off
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Off
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Off
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Off
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Note: A total of 255 node address settings are available. The switches are a binary representation of the decimal node addresses. Switch SW3/8 is the Least Significant Bit and switch SW3/1 is the Most Significant Bit. The switches have the following decimal values: switch SW3/8=1, SW3/7=2, SW3/6=4, SW3/5=8, SW3/4=16, SW3/3=32, SW3/2=64, SW3/1=128. Turn off the switches and add the values of the off switches to obtain the correct node address. (on=0, off=1)
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SHARED RAM CONFIGURATION
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Address
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SW1/3
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SW1/4
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SW1/5
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SW1/6
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C0000h
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Off
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Off
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Off
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Off
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C4000h
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Off
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Off
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Off
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On
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C8000h
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Off
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Off
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On
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Off
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CC000h
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Off
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Off
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On
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On
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D0000h
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Off
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On
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Off
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Off
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D4000h
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Off
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On
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Off
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On
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D8000h
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Off
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On
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On
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Off
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DC000h
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Off
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On
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On
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On
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E0000h
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On
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Off
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Off
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Off
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E4000h
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On
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Off
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Off
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On
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E8000h
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On
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Off
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On
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Off
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EC000h
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On
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Off
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On
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On
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F0000h
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On
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On
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Off
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Off
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F4000h
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On
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On
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Off
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On
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F8000h
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On
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On
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On
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Off
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FC000h
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On
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On
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On
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On
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INTERRUPT SELECTION
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IRQ
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SW2/4
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SW2/5
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SW2/6
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SW2/7
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SW2/8
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2
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On
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Off
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Off
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Off
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Off
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3
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Off
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On
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Off
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Off
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Off
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4
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Off
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Off
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On
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Off
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Off
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5
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Off
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Off
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Off
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On
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Off
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7
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Off
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Off
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Off
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Off
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On
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TIME OUT CONFIGURATION
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Response (micro Sec)
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Reconfig. (ms)
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Distance
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SW1/1
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SW1/2
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74.7
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840
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3.8 miles
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Off
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Off
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283.4
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1680
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17.5 miles
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Off
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On
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561.8
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1680
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35.5 miles
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On
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Off
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1118.6
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1680
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71.4miles
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On
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On
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BASE I/O ADDRESS SELECTION
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Address
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SW1/7
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SW1/8
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SW2/1
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SW2/2
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SW2/3
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200h
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Off
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Off
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Off
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Off
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Off
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210h
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Off
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Off
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Off
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Off
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On
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220h
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Off
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Off
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Off
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On
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Off
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230h
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Off
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Off
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Off
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On
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On
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240h
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Off
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Off
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On
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Off
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Off
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250h
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Off
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Off
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On
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Off
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On
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260h
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Off
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Off
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On
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On
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Off
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270h
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Off
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Off
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On
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On
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On
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280h
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Off
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On
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Off
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Off
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Off
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290h
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Off
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On
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Off
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Off
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On
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2A0h
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Off
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On
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Off
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On
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Off
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2B0h
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Off
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On
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Off
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On
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On
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2C0h
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Off
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On
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On
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Off
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Off
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2D0h
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Off
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On
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On
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Off
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On
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2E0h
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Off
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On
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On
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On
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Off
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2F0h
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Off
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On
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On
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On
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On
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300h
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On
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Off
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Off
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Off
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Off
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310h
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On
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Off
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Off
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Off
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On
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320h
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On
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Off
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Off
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On
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Off
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330h
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On
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Off
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Off
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On
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On
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340h
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On
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Off
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On
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Off
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Off
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350h
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On
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Off
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On
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Off
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On
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360h
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On
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Off
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On
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On
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Off
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370h
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On
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Off
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On
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On
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On
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380h
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On
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On
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Off
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Off
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Off
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390h
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On
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On
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Off
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Off
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On
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3A0h
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On
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On
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Off
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On
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Off
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3B0h
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On
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On
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Off
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On
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On
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3C0h
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On
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On
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On
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Off
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Off
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3D0h
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On
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On
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On
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Off
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On
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3E0h
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On
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On
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On
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On
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Off
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3F0h
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On
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On
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On
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On
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On
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FACTORY CONFIGURED - DO NOT ALTER
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Jumper/Switch
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Position
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JP1
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N/A
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JP2
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N/A
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JP3
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N/A
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JP4
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N/A
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JP5
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N/A
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JP6
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N/A
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DIAGNOSTIC LED(S)
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LED
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Status
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Condition
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LED1
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On
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Network connection is good
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LED1
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Blinking
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Network reconfigurations occurring
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LED1
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Off
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Network connection is bad
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