Agilent Technologies U2781A - Manual (Page 22)

10 U2781A User’s Guide
2 Features and Functions
Introduction
The Agilent U2781A USB modular instrument chassis
provides six USB modular slots and is equipped with 200 W
universal AC power supply and built- in over current
protection circuit. A 10 MHz system reference clock is
supplied to each modules slots. There are two temperature
sensors and a monitoring fan control circuit to monitor the
internal temperature and speed of the fan. The fan is mainly
used for heat dissipation.
The chassis also provides external 10 MHz reference clock,
external trigger in and trigger out functions via BNC
connectors at the rear panel.
The key function for the chassis is to provide users with
flexibility when using the U2781A modular instrument
chassis. The modular chassis allocates housing for six USB
modules with built- in power supply. The USB backplane
provides a means to synchronize the modules.
The key features of the U2781A USB modular instrument
chassis are as follows:
• Simultaneous Synchronization (SSI)
• Star trigger
• Internal and external 10 MHz reference clock
• Trigger in and trigger out signals
• Standard SCPI commands
• IVI- COM driver compatibility
• USBTMC 488.2 compliant
• Hi- Speed USB 2.0 interface
The key functions of the Agilent U2781A USB modular
instrument chassis will be elaborated in the following
sections.
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