Dräger Babylog 8000 - I;O Pcb

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_ _Printed on_18.05.05_F61733XXT01.fm
40
Dräger Medical AG & Co. KGaA 6173.3
Function description Babylog 8000
10.4 I/O PCB
The I/O PCB measures the analog signals O
2
concentration, inspiratory pressure, expiratory pressure,
AIR supply pressure, and O
2
supply pressure, and triggers the loudspeaker and the PEEP/PIP valve.
Fig. 17: Block diagram of the I/O PCB
Digital bus 6800
I/O connections
DTACK
Control bus
Adress bus
Data bus
DTACK
generator
Adress
decoder
Control-Bus
Adreß-Bus
Daten-Bus
Sound
generator
D
A
U
I
Muxer
S
&
H
A
D
PIO
Current of the PEEP valve
Parallel/seriell
Converter
Loud speaker
seriel valve datas