Agilent Technologies 08495-90025 8496G/H Attenuator Switching Order, 8496G/H Attenuator Sections

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Overview

Table 3 8496G/H Attenuator Switching Order

8496G/H

Attenuator Sections

Atten

1

2

3

4

(dB)

10 dB

20 dB

40 dB

40 dB

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

10

X

 

 

 

 

 

 

 

 

20

 

X

 

 

 

 

 

 

 

30

X

X

 

 

 

 

 

 

 

40

 

 

X

 

 

 

 

 

 

50

X

 

X

 

 

 

 

 

 

60

 

X

X

 

 

 

 

 

 

70

X

X

X

 

 

 

 

 

 

80

 

 

X

X

 

 

 

 

 

90

X

 

X

X

 

 

 

 

 

100

 

X

X

X

 

 

 

 

 

110

X

X

X

X

 

 

 

 

 

Each solenoid requires a drive of 20 to 30 V with a switching current of approximately 125 mA* at 24 V dc per section. The solenoid switching time is less than 20 milliseconds including settling time. Once switched, the solenoid plungers are held in place by permanent magnets and the solenoid plungers automatically disconnect the selected coil drive and connect the opposite coil drive (see Figure 1 and Figure 2). This simplifies the coil driver circuit design and reduces the amount of heat dissipated by the solenoid coils since the solenoid coils are energized only for the 20 milliseconds switching time.

*For serial number prefixes below 1722A, change 125 mA to 110 mA.

48494/95/96G/H Operating And Service Manual

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Contents Agilent Technologies 8494/95/96G/H Attenuators Restricted Rights Legend What You’ll Find in This Manual… Warranty Certification Documentation WarrantyService and Support Safety and Regulatory InformationSafety Earth Ground Before Applying Power Instrument MarkingsInstruments Covered by SpecificationOverview ManualTypical Four Section Attenuator Schematic Diagram 8494G/H Attenuator Sections 8495G/H Attenuator Sections8496G/H Attenuator Switching Order 8496G/H Attenuator SectionsOption Connector Description Instrument OptionsFrequency Range Attenuation SpecificationsAttenuation Accuracy Maximum Residual Attenuation RF Power HandlingMaximum SWR CapabilityAtten Solenoid Cable ConnectorSection CardInstrument Dimensions Weight Depth x width x height Physical CharacteristicsCharacteristic Operating ValueInstallation Initial Inspection Mating ConnectorsInstallation Instructions Operator’s Check Operating InstructionsDescription Meter Indication dB Minimum SWR Meter RangeMaximum Adjustments Performance TestsReplaceable Parts Description Part NumberTroubleshooting ServiceRepair To disconnect To care for the deviceReplacing Amphenol 7 mm Center Contact Dimensions Replacing Connector Outer Shell