System Communications - GE Datex-Ohmeda Aisys Carestation Reference Manual

2.4 System communications

High Performance Display Unit
External I/O:
Compact Flash
USB2 (2 Ports)
Ethernet
Monitor On/Standby
RS-232 Serial
DU Controls
Atmel
ATmega 16
Processor
Figure 2-14 • System communications
M1046983 04/08
RS-422 serial communication is used between the two main processors — Display Unit
and Anesthesia Computer — and the subsystem processors. Various baud rates
accommodate data requirements between subsystem and host. External
communication uses the standard RS-232 interface.
M-Gas
Intel '196Processor
HP Display Unit CPU
RS-422
38.4 Kbaud
VIA Eden ESP 10K
Processor
Color LCD
Ventilator
Interface
Atmel ATmega 16
Processor
Mixer Control
Atmel ATmega
103 Processor
Anesthesia Computer CPU
Motorola Coldfire V4
115.2 Kbaud
Processor
Power Supply
Controller
Atmel ATmega
103 Processor
Future Expansion
Ports (2)
2 Theory of Operation
Agent Delivery
RS-422
Atmel ATmega
163 Processor
2
I C Bus
Aladin
2
2-11