User`s manual

VTI Instruments Corp.
28 EX7000 Series Basic Operation
Reset Button
The reset button, accessible through a hole in the rear panel of the EX7000, implemented
according to the LXI LAN Configuration Initialize (LCI) Mechanism specification, can be used to
restore default network settings. This is useful for recovery from an incorrect or unknown network
configuration. There are three modes of operation for this button which are based on the time the
reset button has been depressed.
Debounce Protection Mode
To prevent unintentional resets of the EX7000, there is a short (< 1 s) debounce protection
mechanism. If the reset switch is depressed for less 1 s, the activation of the reset button is treated
as unintentional and no action is taken.
Device Reset Mode
Depressing the switch for a longer time (greater than 1 s but less than or equal to 10 s) causes the
EX7000 to reset in the same manner as clicking the Reset button on the webpage. All switch
modules, for instance, will move their switches to the predefined “reset” state. There is no visual
indicator for this reset.
Device Reboot/LCI Reset Mode
To perform an LCI reset and an immediate reboot of the EX7000, depress the reset button for
longer than 10 s, wait for the LAN LED to flash red, then release the button. This will return the
EX7000 to the power-on default state. The network configuration will be restored to factory
defaults in accordance with the LCI reset procedure described in the LXI Specification.
The EX7000 will now revert back to the default network configuration (DHCP and Auto IP
enabled) instead of its previous settings. VXI-11 Discovery (supported by the VISA IO-Libraries)
can be used to determine the IP address of the instrument.
FRONT PANEL VIEW
The front panel of each EX7000 model is different. The EX71HD front panel is configured with
twelve identical mounting locations for miniature microwave switch modules. The EX72SF front
panel is configured with twelve locations for latching microwave switches. The twelve locations
are divided into six locations for SPDT switches and six locations for SPnT and/or transfer
switches. The EX7400 will be configured to satisfy its unique customer specified requirements.
Details for each EX7400 are supplied as supplements to this manual.
EX71HD
The EX71HD enclosure, shown in Figure 1-1, and switch modules are fitted with blind mating
connectors to simplify switch module removal and installation. The mounting plate on the
switches contains two rear facing alignment pins that fit into holes on the front panel. These pins
only allow full insertion of the switch into the EX71HD enclosure opening when properly aligned.
NOTE Before proceeding with the removal and/or installation of any microwave switch modules in any
of the EX7000 Series assemblies, turn the ac power switch to the OFF position and remove the ac
power cord.
To remove a switch from the enclosure, simply remove the four miniature hex head cap screws
from the four corners of the switch using a 5/64” hex key wrench and pull the switch forward.
There will be some slight resistance until the blind mate connectors disengage.