Flow Pcb (Babylog 8000/Babylog 8000 Plus) (Optional) - Dräger Babylog 8000 Technical & Service Manual

Function description
10.5

Flow PCB (Babylog 8000/Babylog 8000 plus) (optional)

The Flow PCB in Babylog 8000/Babylog 8000 plus measures the flow. It provides the following function
blocks: sensor bridges with sensor amplifiers, analog-to-digital converter, microprocessor Z80 minimum
system, Z80-68000 bus interface.
DTACK
Control bus
Adress bus
Data bus
Fig. 18: Block diagram of the Flow PCB
Dräger Medical AG & Co. KGaA
DTACK
generator
Adress
decoder
Control bus
Adress bus
Data bus
System reset
Analog 1
Muxer
Analog 4
Status flow
Control bus
Adress bus
Data bus
6173.3
Adress
decoder
EPROM
64 k / 32 k
RAM
8 k / 2 k
Dual-Port-
RAM
S
A
&
H
D
Babylog 8000
6 MHz
Z80
CPU
Timer
Watchdog
PIO
41