Appendix B: Input/Output Connections
B–4 VX4101A MultiPaq Instrument User ManualTable B–2: 160-Pin Connector Pinouts (Cont.)
Maximum voltage
limits
Input or OutputSignal descriptionPin number
19E DMM Acknowledge * Output TTL
24B VX4101A MultiPaq Instru-
ment External Trigger In Input TTL
24E VX4101A MultiPaq Instru-
ment External Trigger Out Output TTL
25E Daughter Common Bus
Signal 1 Input/Output Reserved for daugh-
ter cards
25D Daughter Common Bus
Signal 2 Input/Output Reserved for daugh-
ter cards
23C Digital Ground Input/Output Ground
23D Digital Ground Input/Output Ground
24C Digital Ground Input/Output Ground
24D Digital Ground Input/Output Ground