Page 2 - Notices; C A U T I O N; CAUTION; W A R N I N G
2 U2781A User’s Guide Notices © Agilent Technologies, Inc. 2006 No part of this manual may be reproduced in any form or by any means (including elec-tronic storage and retrieval or translation into a foreign language) without prior agree-ment and written consent from Agilent Technologies, Inc. as go...
Page 4 - In This Guide...; Getting Acquainted
4 U2781A User’s Guide In This Guide… This guide contains information of product, features, functions and information on how to install the Agilent U2781A USB modular instrument chassis. 1 Getting Acquainted In t h is chap t er you a re int roduced t o an overv iew of t h e productfeatures, applicati...
Page 7 - Contents
U2781A User’s Guide 7 Contents 1 Getting Acquainted 9 Introduction 10 Features 11 Applications 11 Checking the Contents 11 Product Outlook 12 General Specifications 13 Electrical Specifications 14 Mechanical Specifications 15 2 Installation 17 L-Mount Kit Installation 18 Modular Chassis Installation...
Page 8 - Identifying Modules Location; General Maintenance
8 U2781A User’s Guide Contents Identifying Modules Location 36 Georgraphical Address 36 Modules Identification 36 Simultaneous Synchronization (SSI) 38 4 General Maintenance 41
Page 9 - Agilent Technologies
9 Agilent U2781A USB Modular Instrument ChassisUser’s Guide Agilent Technologies 1Getting Acquainted Introduction 10 Features 11 Applications 11 Checking the Contents 11 Product Outlook 12 General Specifications 13 Electrical Specifications 14 Mechanical Specifications 15 This chapter gives an intro...
Page 10 - Introduction
10 U2781A User’s Guide 1 Getting Acquainted Introduction The U2781A USB modular instrument chassis is a 4U height chassis with six USB module slots. It is a portable chassis with high performance added value. It targets a wide range of applications in both industrial and scientific environments. It ...
Page 11 - Features
Getting Acquainted 1 U2781A User’s Guide 11 Features The key features of the U2781A modular instrument chassis are as follows: • Simultaneous Synchronization (SSI) • Star trigger • Internal and external 10 MHz reference clock • Trigger in and trigger out signals • SCPI commands • IVI- COM driver com...
Page 12 - Product Outlook
12 U2781A User’s Guide 1 Getting Acquainted Product Outlook Front View Rear View Module L-Mount Kit Bumper ON/OFF Trigger In USB Port Trigger Out Ext 10 MHz AC Input 270 mm 197 mm switch
Page 13 - General Specifications
Getting Acquainted 1 U2781A User’s Guide 13 General Specifications REMOTE INTERFACE • USB 2.0 High Speed • USBTMC Class Device POWER CONSUMPTION• 400 VA maximum • Installation Category II OPERATING ENVIRONMENT• Operating temperature from 0 °C to +55 °C • Relative humidity at 15% to 85% RH (non-conde...
Page 14 - Electrical Specifications
14 U2781A User’s Guide 1 Getting Acquainted Electrical Specifications Power Supply AC Input Input voltage range 100 to 240 VAC Input frequency range 50 to 60 Hz Power consumption 400 VA maximum Effiency 75% Power Supply DC Output Output rated voltage 12 VDC Max output rated current 16.7 A Max output...
Page 15 - Mechanical Specifications
Getting Acquainted 1 U2781A User’s Guide 15 Mechanical Specifications Physical Layout Number of USB module slots 6 Dimension of each module slot 25.40 mm (W) x 174.54 mm (D) x 105.00 mm (H) Dimension of chassis 270.00 mm (W) x 271.20 mm (D) x 197.00 mm (H) Weight 3.7 kg Power LED ON/OFF type USB Bac...
Page 18 - Installation; L-Mount Kit Installation; N O T E
18 U2781A User’s Guide 2 Installation L-Mount Kit Installation In order to slot in the USB module into the U2781A USB modular instrument chassis, you need to fix the L - Mount kit on both sides of the U2300A series DAQ. Below are simple instructions to install the L - Mount kit onto the U2300A serie...
Page 19 - Modular Chassis Installation; chassis
Installation 2 U2781A User’s Guide 19 Modular Chassis Installation Figures below show the installation of the USB module into the U2781A modular instrument chassis. Follow the arrows shown below. chassis screws onto the modular Secure both the thumb Step 2 Step 1Slot in the USB module into the modul...
Page 20 - System Requirements; Hardware Requirements; 25 MB required for installation
20 U2781A User’s Guide 2 Installation System Requirements Prior to installing the Agilent Measurement Manager software and the USB DAQ driver, make sure your PC meets the following minimum system requirements. Hardware Requirements Processor 500 MHz Pentium III or higher required (1 GHz is recommend...
Page 21 - Software Requirements; Software requirements; DAQ Driver Installation; Pre-installation of USB DAQ driver
Installation 2 U2781A User’s Guide 21 Software Requirements Software requirements Agilent IO Libraries Suite, T&M Toolkit and Microsoft .NET Framework version 1.0 and 2.0 The Agilent IO Libraries Suite version 14.2 and above is recommended. If possible, you should use the current version of the ...
Page 22 - Installing the USB DAQ driver; Hardware Driver
22 U2781A User’s Guide 2 Installation Installing the USB DAQ driver 1 Unpack the U2781A USB modular instrument chassis. 2 Insert the Product Reference CD- ROM into the CD- ROM drive. 3 Installer will automatically execute the Agilent U2300 Series Installation Menu. Click Hardware Driver to begin the...
Page 23 - Install
Installation 2 U2781A User’s Guide 23 5 The Agilent USB DAQ Driver dialog box will appear as shown in figure 2- 2. Click Next to proceed. Figure 2-2 6 Click Install to begin installation. Figure 2-3
Page 24 - Finish
24 U2781A User’s Guide 2 Installation 7 Click Finish when the installation is completed. Figure 2-4
Page 25 - Hardware Verification; Programs > Agilent IO Libraries Suite > Agilent Connection Expert; Agilent Measurement Manager Software Installation
Installation 2 U2781A User’s Guide 25 Hardware Verification To verify that the hardware plugged in and installed is connected properly, run the Agilent Connection Expert to do the hardware verification Agilent Connection Expert is one of the utility files in the Agilent IO Libraries. The Connection ...
Page 28 - Features and Functions
28 U2781A User’s Guide 3 Features and Functions Introduction The Agilent U2781A USB modular instrument chassis provides six USB modular slots and equipped with 200 W universal AC power supply and built- in over current protection circuit. A 10MHz system reference clock is supplied to each modules sl...
Page 29 - USB Backplane
Features and Functions 3 U2781A User’s Guide 29 USB Backplane Figure 3- 1 illustrates the 55- pin assignment of the backplane connector pin. Figure3-1 55-pin backplane connector pin assignment Table 3-1 Pin information of SSI connector 11 GND +12V +12V GND USB_D+ USB_D- GND 10 GND +12V +12V +12V GND...
Page 33 - System Reference Clock
Features and Functions 3 U2781A User’s Guide 33 Figure3-4 Block diagram of the 10 Mhz Reference Clock and External Trigger In System Reference Clock The 10 MHz reference clock can come from two sources; internal backplane oscillator and external clock source. The internal oscillator on the USB backp...
Page 34 - Chassis Temperature Monitoring
34 U2781A User’s Guide 3 Features and Functions Chassis Temperature Monitoring The chassis contains a temperature control circuitry. It has two thermistor sensors to sense the inner temperature of the chassis. The temperature control circuitry communicates with backplane USB device through an I 2 C ...
Page 35 - Fan Speed Monitoring
Features and Functions 3 U2781A User’s Guide 35 Fan Speed Monitoring The U2781A USB modular instrument chassis is also integrated with a fan speed control circuit. It is used to monitor the fan status and speed. The control circuit communicates with backplane USB device via I 2 C interface. Refer to...
Page 36 - Georgraphical Address; Modules Identification
36 U2781A User’s Guide 3 Features and Functions Identifying Modules Location Georgraphical Address Each slot in the chassis is designed with a 3- bit address pin, which is designated as a location identity for USB modules. The address for all six slots are as below: The USB modules are able to read ...
Page 43 - Contact us
© Agilent Technologies, Inc. 2006 Printed in MalaysiaNovember 29, 2006 U2781-90003 www.agilent.com Agilent Technologies Contact us T o obtain service, warranty or technical support assistance, contact us at the following phone numbers: United States: (tel) 800 829 4444 (fax) 800 829 4433 Canada: (te...
