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Agilent Technologies 1989–2002
Agilent 3070 / 79000 Site Preparation
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Chapter 2: Site Preparation – System Overview: System Overview
Testhead
The testhead connects to the device under test (DUT).
The measurement hardware is installed in card cages
called “modules.” A 307X system can have up to four
modules. A 317X system can have up to two modules.
A 327X has only one module. Vacuum and compressed
air are both used to bring the DUT into contact with the
measurement hardware: compressed air brings the
fixture into contact with the interface pins in the
module, and vacuum pulls the DUT down onto the
fixture’s probes. One compressed air fitting and four
vacuum ports are on a 307X testhead; one compressed
air fitting and up to two vacuum ports are on a 317X,
79000 and 327X testhead.
The testhead cradle includes two integrated cabinets
called the right pod and the left pod. The testhead’s
power distribution unit (PDU) is located in the right
pod. The testhead’s controller can be in either the right
or left pod depending on where the monitor and
keyboard are located (the controller must be in the pod
closest to the monitor and keyboard).
Controller
The controller for the 3070 Series I system is an HP
9000 Series-300. The controller for the 3070 Series II
system is an HP 9000 Series-700. The controller for
3070 Series 3 and the 79000 is an HP 9000 Series-700;
however the customer has a choice of two models with
significantly different speed capability. They include
peripherals and specialized software for board test. The
controller for the Series 3 3070PC is a Visualize P-class
using the NT 4.0 operating system.
Site preparation for the controller hardware is minimal
and is identical to that of a general-purpose computer of
the same type. Voltage and current requirements vary
with location but must be considered during site
preparation. Planning your LAN and routing LAN
cabling is important for site preparation. In order to use
remote support, you will need to provide a suitable
telephone line.
Test Development Station / Center / Server
For 3070 Series I systems, test development “stations”
(TDSs) are diskless HP 9000 Series-300 controllers set
up as cnodes on the testhead controller. Test
development “centers” (TDCs) are also HP 9000
Series-300 controllers, but they are independent (not
cnodes), having their own disks.
For 3070 Series II systems, “stations” are HP 9000
Series-700 (712-60, 712-100, or C110) controllers with
disks. Most of the 3070 software is mounted using NFS.
TDCs are no longer cluster servers, but still act as file
servers for the TDS. TDSs are no longer cnodes; they
are stand-alone systems, although they do have a lot of
board test software that is NFS mounted. If a Series-II
system is added to a site with Series I systems, the two
systems can be networked to share resources.
For 3070 Series 3 and 79000 systems using the HP-UX
controller, test development stations and centers have
been replaced by test “servers.” Test servers are
functionally similar to the older test development
centers but are configured to be more capable of serving
X-terminals and PC X-terminals. With the upgrade of
