Technical data

Theory of Operation 4
N1911A/1912A P-Series Power Meters Service Guide 43
Main Board Assembly
Purpose
• Provides the average measurement path(s)
• Provides the peak measurement path(s) to the DAP(s)
• Provides external trigger input/ output and recorder output(s)
• Provides the driver and the LVDS serialiser for the LCD display
• Provides signal routing between the PPMC, DAP(s), and front panel
Inputs
• Power supplies [from PSU]
• Sensed power level(s) [from sensor flexi(s)]
• Trigger input [from external equipment]
• Control, address, and data lines [from PPMC]
Outputs
• Processed average path measurement [to PPMC]
• Unprocessed peak path measurement samples [to DAP(s)]
• Trigger output & recorder output(s) [to external equipment]
• LVDS LCD display contorl lines [to front panel]
• Control and data lines [to PPMC]