Agilent Technologies DP111 Especificaciones Pagina 278

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SM811 and TP868 Appendix A Hardware Units
278 3BSE036351-510 A
SM811 and TP868
Key Features
MPC862P Microprocessor running at 96 MHz.
•32 MB RAM
Provides supervision of the PM865 controller
during SIL1-2 operations and together with the
PM865 forms a 1oo2 diverse architecture for
SIL3 applications.
Over voltage protection.
Internal voltage monitoring.
Supports hot swap.
Supports redundancy.
SM Link for synchronization of redundant pair.
Description
Physically SM811 Unit consists of two parts:
Termination Plate (TP868) and SM811.
The SM811 contains two pc-boards. The main board
contains the MPC862, SDRAM, Flash PROM, and
CEX-Bus slave interface. A daughter board contains
digital I/O, +3.3V supply with over-voltage
protection and voltage monitoring. The termination
plate contains CEX-Bus connectors and connectors
for the digital I/O.
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