Bus Access and Connectors

Let the Reference period be T. Added delay can be:

0T to 65534T in steps of T

65540T to 655350T in steps of 10T

Front Panel Connectors (BNC) :

Channel 1 Inputs : 50Ω/75Ω single-ended

1MΩ (+)

1MΩ (-)

Channel 2 Inputs : as for channel 1

Ext 1 : In : Arm, Trigger

Out: Arm, Trigger, Reference, Ready for Trigger, Pre-Arm Count

Complete

Ext 2 : In : Trigger, Reference

VXI ECLTrig: In: Arm, Trigger, Reference

Out: Arm, Trigger, Reference, Ext 1 BNC signal

VXI TTLTrig: In: Arm, Trigger

Out: Arm, Ready

VME Bus: The HP E1429A can be used as either a VXI Message-Based or register-based instrument.

Message-Based operation: Uses Standard Commands for

Programmable Instruments (SCPI). This provides easy operation with an industry-standard programming interface.

Register-Based operation: Registers controlling the hardware

are directly accessible, providing the highest possible throughput, at the cost of programming effort. Documentation provided

includes descriptive material and "C" source code. Some functions, such as calibration, can only be performed with the assistance of the on-board 68000 processor.

Appendix A

Specifications 327

Page 327
Image 327
HP E1429A manual Bus Access and Connectors