Technical data
Table Of Contents
- Technical Reference Manual for OEMs HP Models 743, 744, and 748
- Contents
- 1 General Information
- Model 743 and Model 744 VME Board Computers
- Product Description
- Supported Configurations
- Model 743 and Model 744 External Devices
- Keyboard and Mouse
- Model 743 and Model 744 Cables
- Model 743 and Model 744 Functional Description
- Model 744 Block Diagram
- CPU Circuit
- Boot ROM Circuit
- Graphics Circuit
- Model 743 Memory Controller Circuit
- Model 744 Memory Controller Circuit
- LED Displays
- I/O Controller ASIC
- VME Controller ASIC
- I/O Expansion
- I/O Expansion Block Diagrams
- Model 748 Ruggedized Workstation
- Model 743 and Model 744 VME Board Computers
- 2 References
- 3 Quality
- 4 Mechanical Information
- 5 Electrical Information
- Video Connector Pinouts
- Audio Connector Pinouts
- HP Parallel Connector Pinouts
- RS-232 Connector Pinouts
- AUI LAN Connector Pinouts
- Single-Ended SCSI Connector Pinouts
- FW SCSI Connector Pinout
- PS/2 Connector Pinouts
- VME Connector Pinouts
- Real-Time Clock (RTC) Battery Information
- Video Output Signal Specifications
- Video Timing Specifications
- 6 Power Requirements
- 7 Product Design Considerations
- Index

3-9
Quality
Climatic and Dynamic Environmental Ruggedness
Temperature, Humidity, and Altitude Test Suite
Table 3-16 and Table 3-17 summarize the temperature tests suite.
Table 3-18 and Table 3-19 summarize the humidity tests suite.
Table 3-20 and Table 3-21 summarize the altitude test suite.
Table 3-16 Temperature Tests While Non-Operations
Standard Level
HP class B1 (IEC 654 Part 1 class C3 compatible) -40 Deg C to 71 Deg C
(-40 Deg F to 159.8
Deg F)
Table 3-17 Temperature Tests During Operation
Standard Level
HP class B1
(IEC 654-1 class Bx compatible)
0 Deg C to 55 Deg C (41 Deg F to 131 Deg F)
Temperature slew rate
(exceeds IEC 654-1)
10 Deg C/minute (50 Deg F/minute)
Table 3-18 Humidity Tests While Non-Operational
Standard Level
HP class B 90% relative humidity at 65 Deg C
Table 3-19 Humidity Tests During Operation
Standard Level
Condensation <5 minutes recovery
HP class B 15% to 95% relative humidity at 40 Deg C
Table 3-20 Altitude Tests While Non-Operating
Standard Level
HP Standard 761 (class B) (exceeds IEC 654-1) 4.6 Km (15 Kft)
Table 3-21 Altitude Tests During Operation
Standard Level
HP Standard 761 (class B) (exceeds IEC 654-1) 4.6 Km (15 Kft)










