Gasboy CFN Series Diagnostic Manual - Manual (Page 39)

Site Controller I
0021 2-13
SITE CONTROLLER MEMORY PCB
The site controller Memory PCB comes in four different versions:
Site Controller Memory PCB (C04837)
This version is used only on older models of Site Controller I. It can contain up to 128K of RAM
and is usually stuffed with RAM's in all sockets to reach that maximum capacity.
Site Controller II 128K (C02117)
This is the newer version of the 128K memory PCB. It is used for Site Controller I only. It always
comes with 128K and can serve as a drop-in replacement for the previous 128K memory PCB.
Site Controller II 512K (C08331)
This version of memory PCB is the same as used in the Site Controller II. It contains 32K RAM's
and provides 512K of memory.
Site Controller II PCMCIA 760K (C06731)
This PCB (PCMCIA) is the latest version of the memory PCB. It always comes with 760K and can
serve as a drop-in replacement for memory PCB's C02117 and C08331.
These memory PCB's:
•
provide the battery-backed RAM for the storage of all transaction and system data
•
provide Ni-Cad batteries (lithium batteries for C06731) for data retention during power failures
•
can provide battery power to specified devices on the CPU PCB
•
alerts site CPU PCB of impending DC power failure