MODEL 1000 SEP 2005
2350 to 2350A CPU RETROFIT INSTRUCTIONS
F-1
APPENDIX F
2350 to 2350A CPU RETROFIT INSTRUCTIONS
F.1 2350A CPU ASSEMBLY INTRODUCTION
The 2350A GC Controller CPU assembly has been designed to include all digital I/O and COM3 and
COM4 serial ports. This eliminates the requirement (and additional cost) for an I/O assembly or
DSPI/O assembly.
In addition, BOS is now resident in the DiskOnChip, instead of an EPROM set. The DiskOnChip
provides additional expanded memory for archiving data, instead of having to purchase a memory
expansion board assembly. The BOS file in the DiskOnChip may be upgraded in the field through
the MON2000 Software (refer to the MON2000 Software for Gas Chromatographs User Manual
P/N 3-9000-522 for BOS upgrade details).
Optional boards may be plugged directly into the PC/104 Bus (connectors J19 and J20) on the CPU
Board assembly. The COM4A Board provides four additional serial ports (COM5 through COM8).
A Modem Board and/or Ethernet Board may be also be plugged directly into the PC/104 Bus for
additional communications requirements. The PC/104 Bus is designed to allow any combination of
option boards to be installed in any order (refer to Figure F-1).
If you are using the CSA approved Radicom modem; ensure that it is the top card in the card
cage assembly. The connection configuration of the Radicom modem requires installation at
the top of the assembly.
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