User`s guide

viii L4400 User’s Guide
6 L4437A General Purpose Switch
General Purpose Switch Instrument 128
L4437A SCPI Command Summary 130
L4437A Example Program Segments 131
L4437A 32-Channel General Purpose Switch Hardware Description 132
L4437A Simplified Schematic 132
L4437A D-Sub Connectors 133
34937T Terminal Block 134
7 L4445A Microwave Switch/Attenuator Driver
L4445A SCPI Command Summary 136
L4445A Microwave Switch/Attenuator Driver 138
Recommended Switches and Attenuators 141
Power Supplies 142
Channel Numbering 143
Simple Switch Control 144
Remote Module Identifiers 145
Drive Modes 145
Using Single Drive Switches and Attenuators 146
Using Dual Drive Switches and Attenuators 147
Using Pulse Drive 148
Long Execution Times 149
Verifying Switch State 149
LED Drive 151
Default and Reset States 152
Y1150A 155
Y1151A 159
Y1152A 164
Y1153A 169
Y1154A 174
Y1155A 179
Mounting the Remote Modules 187
SCPI Programming Examples 188