Philips M3000A, Руководство по обслуживанию

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Functional Description of the Measurement Server Hardware
22 Introduction to the Instrument
•
Heart rate software.
• The Third Layer—This consists of the interface management and interface controllers.
This layer contains the date/time, and Server-to-Monitor link managers.
• The Fourth Layer—This consists of the monitoring algorithms and software to acquire the
physiological signals.
Functional Description of the Measurement Server
Hardware
The Server receives information signals (such as ECG, etc.) from the patient, performs some
data processing, then transmits the data to the Monitor via the Server-to-Monitor link bar.
The following block diagram shows the main functional components of the Measurement
Server.
The main functional areas are summarized below:
• CPU Board—Consisting of a 68360 Controller, the Memory System (Flash ROM, SRAM,
DRAM, ASIC, RTC, etc.), the NBP A/D Converters, and a connector link to a Monitor or
an Extension.
From
Patient
CPU System
(CPU, Flash-ROM
3.3V
SRAM, DRAM,
ASIC, RTC,...)
Floating /
Non-Floating
Isolation
ECG/Resp Front End
SpO
2
Front End
Press/Temp Front End
5V
+12V
3.3V (Buffd.)
48V
78kHz
DC/DC
Converter
Board
Pneumatic
Power Switches
-12V
14Vac
12V
NBP
Pneumatic
Assembly
+12V -12V
NBP
A/D
Converters
To/From
Monitor
6Vac
6Vac
-6Vac
48V
78kHz
Se
ri
al
L
ink
Li
nk
B
ar
CPU Board
Front End Board
From
Patient