User`s guide
Agilent 4155C/4156C User’s Guide Vol.2, Edition 6 8-29
Support Functions
Switching Matrix Control
Switching Matrix Control
The 4155C/4156C can control the Agilent E5250A Low Leakage Switch 
Mainframe installed with the E5252A matrix card. This section describes how to 
control the E5250A.
• “Requirements”
• “To Control Functions”
• “To Control Connections”
• “To Use Matrix Setup File”
Requirements
Prepare the instruments and cables listed in Table 8-2 and provide the following 
environment. For the location of the components on the E5250A rear panel, see 
Figure 8-7. Also, see Table 8-3 for the cable connections.
1. Install the E5252A card into the E5250A slot 1. The E5252A must be installed 
in slot 1.
If you need more than 12 output ports, install the cards into the E5250A card slot 
continuously from slot 1. If a blank card or another card is in slot 2, 3, or 4, the 
4155C/4156C ignores the cards installed in those slots as well as the cards in the 
following slots.
2. Set the GPIB address of the E5250A. You will define the value later on the 
4155C/4156C CHANNELS: E5250A PROPERTIES screen.
3. Connect the GPIB cable between the E5250A and the 4155C/4156C.
If an external computer is connected to the same GPIB bus, disconnect the GPIB 
cable from the computer, or pass the Active Controller capability to the 
4155C/4156C.
4. Connect the triaxial cables between the E5250A SMU INPUT connectors and 
the 4155C/4156C SMU connectors, or the 41501 HPSMU/MPSMU connectors.
5. Connect the coaxial cables between the E5250A AUX INPUT connectors and 
the 4155C/4156C VSU/VMU connectors, 41501 PGU connectors, or other 
instruments.
6. Connect the triaxial cables between the E5252A output connectors and test 
fixture or prober via the connector plate.










