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Chapter 3: SCSI Backplane User Manual
3.0 Before you begin: This SCSI backplanes and cables are only available in
B2880C2S configuration.
3.1 Backplane Specifications
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Dimension: 112 mm X 84.3 mm X 1.8 mm
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PCB Layers: 4
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Transfer Interface: Ultra 320 / 160 and backward compatibility
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Connector: 80 PIN SCA2 CONNECTOR X 3, 68 PIN WIDE SCSI X 2
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DC power inlet: 2 (J7&J8)
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SCSI ID setting: DIP Switch (DS1, DS2, and DS3)
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Support one set of fan failure detection circuit: Intel 3P fan connector
compliance
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Signals Output (JP2):
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HDD power LED X 3
u
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HDD access LED X 3 (Orange)
u
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Fan / Overheat LED X 1 (Red)
u
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Alarm Function: When fan failure or overheat
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Alarm Reset Function: TACT SWITCH
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Terminator mode(DS4 SW1):
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Terminator enable (DS4 SW1 ON)
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Terminator disable (DS4 SW1 OFF)
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HDD motor control pins (DS4 SW2 and SW3):
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RMT_START (DS4 SW2 ON)
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DLYD_START (DS4 SW3 ON)
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HDD motor control pins (DS4 SW2 SND SW3):
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Fan alarm control (DS4 SW4 and SW5 ):
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DS4 SW4 ON
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Fan 1 ( J9 ) alarm enable (DS4 SW5 OFF), alarm disable ( DS4 SW5
ON )
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Temperature Setting (DS4 SW6):
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50? (DS4 SW6 ON)
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60? (DS4 SW6 OFF)
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Support Hot plug function
Active: When HDD INSERT (Green)
Active: When HDD ACTIVE
Active: When Fan fail or Overheat
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