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Desktop Computer System

System View | Block Diagram
Protection Area Illustration (click to open larger image in new window)
  1. AC Power
  2. Analog Audio
  3. Buttons
  4. CD / DVD ROM
  5. CPU Protection
  6. DVI Port
  7. Hard Drive
  8. HDMI Port
  9. Headphone Jack
  10. IEEE 1394 FireWire
  11. LCD Monitor Controller
  12. IEEE 1284 Parallel Port
  13. PS/2 Port
  14. RS-232
  15. Ethernet
  16. Phone / Modem
  17. Desktop Speaker
  18. S-Video
  19. SCSI I/O Bus
  20. USB 2.0 Port
Desktop System Headphone Jack CD / DVD ROM CD / DVD ROM LCD Monitor Controller/Inverter Desktop Speaker Desktop Speaker AC Power CD / DVD ROM CPU Protection IEEE 1284 (Printer Port) Parallel Port Parallel Port Hard Disk Drive S-Video USB Desktop Speaker HDMI Port DVI Port RS-232 RS-232 Hard Drive Ethernet Port PS/2 Port CPU LCD Monitor Controller USB 2.0 Port IEEE 1394 FireWire Headphone Jack SCSI I/O Bus SCSI Rj-11 Modem Port Mouse Keyboard / Buttons RJ-11 Modem Port

IEEE 1284 Parallel Data Bus Protection

Problem: Overcurrent fault conditions.

A misconnection of the connectors or a foreign metal object placed into the connector can cause a large overcurrent event, which could damage internal electronics.

 

Solution: PolySwitch devices.

PolySwitch devices help limit the flow of dangerously high currents during fault conditions and reset back to normal operating mode once the fault condition is removed.

 

Read more about the Raychem Surface-mount (SMD) PolySwitch device

Applicable Product Series: microSMD, miniSMD.
Download SMD Datasheet - (pdf 439KB)
Agency Recognition: UL E74889, TÜV R9872049, R9872048, R2172061, CSA 078165_C_000, IEC60950 and UL1950.

 

Circuit Diagram / Schematic

 

Problem: Transient Surge Voltages and Electrostatic Discharge (ESD)

Electrostatic discharge (ESD) events can occur during installation and also any time the user disconnects the source from the receiver. This can severely damage the equipment.

 

Solution: PESD devices

Extremely low capacitance ESD protection devices, such as Raychem PESD devices, help shunt ESD away from sensitive circuitry in electronic devices without inducing signal distortion.

 

Read more about the Raychem ESD protection device.


Applicable Product(s): PESD0402, PESD0603.
Download PESD Datasheet - (pdf 318 KB)

 

Circuit Diagram / Schematic

 

Application Notes:

IEEE 1284 Parallel Data Bus (pdf 39KB)

 

Competitor Cross-reference