75-Ohm Multiport Test Sets ( 20 Page)
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.
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
Data transfer formats:
• 32- or 64-bit IEEE 754 floating-point format
• Mass-memory-transfer commands allow file
transfer between external controller and
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
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-
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)
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