Gasboy CFN Series Diagnostic Manual - Manual (Page 390)

CFN Islander
13-22 12/26/02
ISLANDER I (SITE CONTROLLER I C05820) CPU – 512K PCB
This CPU PCB controls all activity in the Islander. The CPU PCB:
•
processes all Islander data
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communicates to all CFN equipment via the RS-485 lines
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communicates to the RS-232 equipment
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contains the system program (EPROM & EEPROM)
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contains on-board scratchpad RAM
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provides diagnostic LED’s
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provides a manual reset switch
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controls the memory PCB
Layout
See section 2 of this manual for a detailed view, LED indicator functions, switch and jumper
settings, and connector pinouts for this board.
ISLANDER I MEMORY PCB
The Islander I had two different versions of memory PCB:
512K Memory PCB (C08331)
This version of memory PCB contained 32K RAM’s and provided 512K of memory.
PCMCIA 760K Memory PCB (C06731)
This memory PCB provides 760K of memory and can serve as a drop-in replacement for memory
PCB C08331.
The memory PCB:
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provides the battery-backed RAM for storage of all transaction and system data
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provides Ni-Cad batteries (lithium batteries for C06731) for data retention during power
failures
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can provide battery power to specified devices on the CPU PCB
•
alerts site CPU PCB of impending DC power failure
Layout
See section 2 of this manual for a detailed view, LED indicators functions, switch and jumper
settings, and connector pinouts for these boards.