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17 page 
17 Data hard copy Hard copy prints can be made using PCL and PCL5 printers (such as HP DeskJet or LaserJet series printers), or Epson-compatible graphics printers. Single color and multicolor formats are supported. Hard copy plots can be automatically produced with HP-GL-compatible plotters such as the Agilent 7475A, or with printers that support HP-GL. The analyzer provides Centronics (parallel), RS-232C, GPIB, and LAN interfaces. Automation Controlling via GPIB Interface: The GPIB interface operates to IEEE 488.2 and SCPI standard-interface commands. Control: The analyzer can either be the system controller, or pass bus control to another active controller. Data transfer formats: • ASCII • 32- or 64-bit IEEE 754 floating-point format • Mass-memory-transfer commands allow file transfer between external controller and analyzer. Control via LAN The built-in LAN interface and firmware support data transfer and control via direct connection to a 10 Base-T (Ethertwist) network. A variety of stan- dard protocols are supported, including TCP/IP, sockets, ftp, http, telnet, bootp, and NFS. The LAN interface is standard. SCPI: The analyzer can be controlled by sending Standard Commands for Programmable Instru- ments (SCPI) within a telnet session or via a socket connection and TCP/IP (the default socket port is 5025). The analyzer’s socket applications program- ming interface (API) is compatible with Berkeley sockets, Winsock, and other standard socket APIs. Socket programming can be done in a variety of environments including C programs, Agilent VEE, SICL/LAN, or a Java™ applet. A standard web browser and the analyzer’s built-in web page can be used to remotely enter SCPI commands via a Java applet. FTP: Instrument state and data files can be trans- ferred via ftp (file-transfer protocol). An internal, dynamic-data disk provides direct access to instru- ment states, screen dumps, trace data, and operat- ing parameters. HTTP: The instrument’s built-in web page can be accessed with any standard web browser using http (hypertext transfer protocol) and the network analyzer’s IP address. The built-in web page can be used to control the network analyzer, view screen images, download documentation, and link to other sites for firmware upgrades and VXIplug&play drivers. Some word processor and spreadsheet pro- grams, such as Microsoft® Word 97 and Excel 97, provide methods to directly import graphics and data via a LAN connection using http and the net- work analyzer’s IP address. SICL/LAN: The analyzer’s support for SICL (standard instrument control library) over the LAN provides control of the network analyzer using a variety of computing platforms, I/O interfaces, and operating systems. With SICL/LAN, the analyzer is controlled remotely over the LAN with the same methods used for a local analyzer connected directly to the com- puter via a GPIB interface. SICL/LAN protocol also allows the use of Agiltent’s free VXIplug&play driver to communicate with the multiport test system over a LAN. SICL/LAN can be used with Windows® 95/98/NT, or HP-UX. NFS: The analyzer’s built-in NFS (network file sys- tem) client provides access to remote files and directories using the LAN. With NFS, remote files and directories (stored remotely on a computer) behave like local files and directories (stored locally within the analyzer). Test data taken by the net- work analyzer can be saved directly to a remote PC or UNIX® directory, eliminating the need for a remotely initiated ftp session. For Windows-based applications, third-party NFS-server software must be installed on the PC. NFS is fully supported in most versions of UNIX. Bootp: Bootstrap protocol (bootp) allows a network analyzer to automatically configure itself at power- on with the necessary information to operate on the network. After a bootp request is sent by the analyzer, the host server downloads an IP and gate- way address, and a subnet mask. In addition, the analyzer can request an IBASIC file, which auto- matically executes after the transfer is complete. For Windows-based applications, third-party bootp-server software must be installed on the PC. Bootp is fully supported in most versions of UNIX. System features (continued) |
