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

Front Panel OperationSelect external triggering from the SELECT CHAN SPAC-ING menu by placing the cursor on EXTERNAL and pressingENTER. The instrument will return to the CHANNELCONTROL menu.Note: The front panel STEP key (see MANUAL) is activewith external triggering selected. Each press of the STEP keywill select the next channel of the scan.GPIB — With this selection, bus triggers are used to controlchannel spacing for the scan. Each trigger sent over the bus(GET or *TRG) will open the current channel and close thenext channel of the scan. See Section 5 for detailed informationon bus triggers.Select bus triggering from the SELECT CHAN SPACINGmenu by placing the cursor on GPIB and pressing ENTER.The instrument will return to the CHANNEL CONTROLmenu.Note: The front panel STEP key (see MANUAL) is activewith bus triggering selected. Each press of the STEP key willselect the next channel of the scan.Manual — With this selection, the front panel STEP key isused to control channel spacing. Each time the STEP key ispressed, the current channel of the scan will open and thenext channel will close.Select manual triggering from the CHANNEL SPACINGmenu by placing the cursor on MANUAL and pressing EN-TER. The instrument will return to the CHANNEL CON-TROL menu.Note: The front panel STEP key is active when TIMER, EX-TERNAL, GPIB or TRIGGER LINK is selected.Triglink — With this selection, channel spacing of the scanis controlled by the Trigger Link of the Model 7002. TriggerLink is an enhanced trigger system that uses up to six linesto direct trigger pulses to and from other instruments. Eachtrigger stimulus applied to the Model 7002 will open the currentchannel and close the next channel of the scan. See paragraph4.17 for details on using the Trigger Link.Note: The front panel STEP key (see MANUAL) is activewith Trigger Link selected. Each press of the STEP key willselect the next channel of the scan.Select the Trigger Link from the SELECT CHAN SPACINGmenu by placing the cursor on TRIGLINK and pressing EN-TER. The following menu will be displayed:SET TRIGGERLINK MODEASYNCHRONOUS SEMI-SYNCHRONOUSASYNCHRONOUS — The asynchronous trigger linkmode is used for trigger configurations that require input andoutput triggers to be routed on separate lines. Perform thefollowing steps to select the asynchronous mode, and to selectthe input and output trigger lines for the Model 7002:1. With the SET TRIGGERLINK MODE menu displayed,place the cursor on ASYNCHRONOUS and press EN-TER. The following message will be displayed:SELECT INPUT LINE#1 #2 #3 #4 #5 #6The position of the cursor indicates the currently selectedinput line.2. To select a trigger input line for the Model 7002, placethe cursor on the desired line number and press ENTER.The following message will be displayed:SELECT OUTPUT LINE#1 #2 #3 #4 #5 #6The position of the cursor indicates the currently selectedoutput line.3. To select a trigger output line for the Model 7002, placethe cursor on a different line number and press ENTER.The instrument will return to the SELECT CHANSPACING menu. Note that you cannot use the sametrigger line for both input and output.SEMI-SYNCHRONOUS — In this mode, the input andoutput triggers for the Model 7002 are assigned to the same4-44