Part 2

5 9 6 Plug-In Assembly ConfigurationHCOMHCOM BOOTGUARD GNDT.C. GND-8V T.C.+15V L(L) LATCHBREAKMAKE+ 5V LOGICLOGIC GNDGUARD GND-1 9V GGUARD GNDO.C. GNDIG. INTERRUPTBDOBD 1ED2BD3BD4805BD6BD7Component SideLCOMLCOM BOOTGUARD GNDUN3UN2DECAlDECBlUN 1UNO+ 5V RELAYRELAY GNDGUARD GND+l9V GGUARD GNDO.C. GNDDIG. RESETSLOT ENABLEDIG. READDIG. WRITEBA2BA 1BAO+ 5 v O.C.-5v O.C.Circuit SideDIGITAL LINE DESCRIPTION/Signal Name Pin NoDescription and/or UseIGround for + 5V digital supply.Referenced to Outguard (earth)GND.+5V Digital Powe!r Supply.Referenced to Outguard (earth)GND. Tolerance + 5%) (4.75V to5.25V). Filter and bypasscapacitors recommended.Register Address Select Lines. BA2Example: to select register 6, theselines would have the following logicstates:__+_DIG READDIG WRITEDIG RESETBA2 BAl BAO1 1 0Digital Read. A 500 nS low signalactivated by executing the "SR"command.Digital Write. A 500 nS low signalactivated by executing the "SW"command.Digital Reset. A 500 nS low signalactivated by executing the "SI"command or when the 3497A isreset.Interrupt line to 3497A pP. This lineis not to be used by the breadboardcard. This line is reserved for use bydigital input and counter cards to interruptthe 3497A pP.!BDO - BD7 18- 25 Bi-directional Data Bus Lines.l-Transfers data between 3497A andoption cards.SLOT ENABLESlot Enable. A 750 nS low signalthat is activated when a "SR" or"SW" command is being executed.This line is used to enable the slotthat is being addressed by the "SR"or "SW" commands.Figure 156. Option 140 - 3497A Digital Backplane SignalsArtisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com