4 Theory of Operation
40
•
Connector Block (1253-8415)
•
Bus Master Board (M2703-66460)
•
Main CPU Board (M2705-66510)
•
Fetal Recorder (Thermal Printer Unit)
•
Display Assembly (M2703-64503)
•
Noninvasive Blood Pressure Board (optional, M2703-64502)
•
SpO
2
Board (optional, M2703-66453)
•
Input /Output Interface Boards (optional):
– LAN / RS232 (M2703-67501)
– Dual PS/2 (M8086-67501)
– MIB/RS232
– Flexible Nurse Call
– Quadruple USB ports
Power Supply
The power supply is a wide-range input switching unit, with an output of 24V. It is located in the
bottom housing assembly.
Connector Block
Any compatible fetal transducer can be connected in any order to the monitor via the sockets on the
Connector Block. The Connector Block is located on the Bus Master Board, and is exchangeable. The
assembly made up of the Connector Block and the Bus Master Board is referred to as the Front End
Assembly in the chapters “Repair and Disassembly” on page 139 and “Upgrades” on page 213.
Bus Master Board
The signals from the transducers or sensors are conveyed from the sensor sockets on the Connector
Carrier Board (M2703-66421) to the Bus Master Board (M2703-66420).
The Bus Master Board is responsible for transducer detection, communicates with the connected
transducers via a CAN bus, and communicates parameter data to the Main CPU Board via a serial link
for further processing and display.
Main CPU Board
The Main CPU Board controls the monitor’s human interface, and is responsible for the final
processing of data from the Bus Master Board. It sends this data to the TFT display, and to the
thermal printer unit for recording traces, and other patient data. It also controls the optional LAN/
RS232, USB, and PS/2 interface boards.
Содержание Avalon FM20
Страница 2: ......
Страница 6: ...6 ...
Страница 38: ...3 Installation Instructions 38 ...
Страница 46: ...4 Theory of Operation 46 ...
Страница 145: ...10 Repair and Disassembly 145 7 The top cover assembly is now separated from the bottom housing assembly ...
Страница 154: ...10 Repair and Disassembly 154 10 Take the new rear housing cover and place it in the position shown ...
Страница 155: ...10 Repair and Disassembly 155 11 Put the two halves of the display assembly together as shown ...
Страница 163: ...10 Repair and Disassembly 163 4 Turn over the top cover assembly and place it top down on a cloth or other soft surface ...
Страница 167: ...10 Repair and Disassembly 167 10 Remove the four screws holding the recorder chassis ...
Страница 169: ...10 Repair and Disassembly 169 12 Remove the RFI bracket 13 Lift out the recorder chassis ...
Страница 200: ...10 Repair and Disassembly 200 2 Remove the screws holding the metal shield 3 Remove the shield ...
Страница 254: ...12 Specifications 254 ...
Страница 259: ......
Страница 260: ...Part Number 453564541271 Published in Germany 11 14 453564541271 ...