Model 7002Switch System Instruction Manual - Advanced Test ...

Front Panel OperationBypass7002Press STEPIdleBWait forTrigger LinkTrigger2001ContinuousInitiationAWait forTrigger LinkTriggerCScanChannelMakeMeasurementEDOutputTriggerTriggerTriggerOutputTriggerFNoScanned10Channels?Made10Measurements?NoYesYesFigure 4-24Operation model for asynchronous Trigger Link example #1External Triggering and Trigger Link — As previouslymentioned, the trigger pulses for the asynchronous TriggerLink are identical to the trigger pulses used for External Triggering.The only thing that prevents them from being usedtogether are connection incompatibilities. Trigger Link uses8-pin micro DIN connectors while External Triggering usesBNC connectors.This connection problem can be resolved by using the Model8502 Trigger Link Adapter. The adapter has two 8-pin microDIN connectors and six BNC connectors. The DIN connectorsconnect directly to a Trigger Link connector on the Mod-el 7002 using a trigger link cable. The BNC connectors matedirectly to the External Triggering BNC connectors on otherinstruments using standard male BNC to BNC cables.Figure 4-25 shows how a Keithley Model 196 can be connectedto the Trigger Link of the Model 7002 using theadapter. With this adapter, the Model 196 could be substitutedfor the meter with Trigger Link (2001) in the previous example(asynchronous Trigger Link example #1). With theModel 196 set for external triggering, the test would startwhen STEP on the Model 7002 is pressed.4-63