Multiplexer Card Numbers

HP plug-in modules installed in an HP VXIbus mainframe are treated as independent instruments each having a unique secondary HP-IB address. An instrument may be composed of a single plug-in module or multiple plug-in modules. The card number identifies the module within a switchbox or scanning voltmeter configuration. The multiplexer module with the lowest logical address is always card number 01. The multiplexer module with the next successive address is 02, and so on. Figure 2-1 illustrates the card numbers and logical addresses of typical single-module switchboxes. Figure 2-2 illustrates the card numbers and logical addresses of a typical multiple-module switchbox. Figure 2-3 illustrates the card numbers and logical addresses of a typical multiple-module scanning voltmeter.

Figure 2-1. Card Numbers for Single-Module Switchboxes

Figure 2-2. Card Numbers for Multiple-Module Switchbox

18 Configuring the HP E1351A/53A FET Multiplexer Modules

Chapter 2