Status System for 8166A/B

Introduction to Programming

The Status Model

The status system for the Agilent 8166A/B Lightwave Multichannel System returns the status of 17 module slots. The Operational/Questionable Status Summary Registers consists of two levels, as described by Figure 5 .

Module slots 1 to 14 affect the Level 0 summary register as described in Figure 4 . Bit 0 of the Level 0 summary registers represents the summary of the status of module slots 15, 16, and 17. The Level 1 summary registers contain an individual summary for each of these module slots.

Status Byte Register	Status Byte

Status	Operational/Questionable Status
Summary	Enable Summary Mask
for Level 0	Register (Level 0)
	Operational/Questionable Status
	Event Summary Register (Level 0)

		to next
&		level
&
&	&	OR
	&	&

Operational/Questionable Status Condition Summary Register (Level 0)

for a positive transition

Status	Operational/Questionable Status
Summary	Enable Summary Mask
for Level 1	Register (Level 1)
for Level 1
	Operational/Questionable Status
	Event Summary Register (Level 1)

		to next
&		level
&
&	&	OR
	&	&

Operational/Questionable Status Condition Summary Register (Level 1)

for a positive

transition

Slot 15	Operational/Questionable			to next
	Slot Status Enable Mask			level
	Register	&		level
	Register

		&	&	OR
	Operational/Questionable		&	&
	Operational/Questionable
	Slot Status Event
	Register			for a positive
				for a positive
	Operational/Questionable			transition
	Operational/Questionable
	Slot Status Condition
	Register

Figure 5 The Operational/Questionable Status System for 8166A/B

36	Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition

8163A, 8164A, 8166A, B specifications

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Agilent Technologies 8163A, 8164A manual Status System for 8166A/B

Models: 8163A 8164A 8166A B

Introduction to Programming

The Status Model