Keysight M9130A, Руководство для стартапов

Страница: 21 / 50

Keysight PXI General Purpose Switch Modules Startup Guide 20
Module Functional Description
Default Path Settings
The table below lists the default signal path for the Switch modules. This default
switch path is also shown in the following diagrams.
Module Functional Description
The Keysight PXI General Purpose switch modules conform to the single slot, 3U
form factor (100mm by 160mm / 3.94 in. by 6.3 in.) Eurocard standard. These
modules meet PXI Specification 2.2. Local bus, trigger bus, and star trigger are
not included. The modules also include:
- CPCI Ejector Handle
- Front panel connectors (either 78 pin D connector, 200 pin female LFH, or
dual 20 pin connectors)
- The front panel secures to the chassis by two M2.5 x 6mm pan-head
Posi-drive screws.
Figure 1 shows a functional block diagram for the modules. The PCI connector
(J1) pr3.3Vdc (not all modules use this supply), +5Vdc, +12Vdc, ground,
as well as the control signals from the chassis backplane. The relay drivers are
activated by the PCI Bridge (U1) via output registers.
There are no user serviceable or field replaceable components on these modules.
Switch modules are considered a “wear-out” item. It is normal for
relay performance to degrade over time; life expectancy depends
on the specific application and use model. Hot-switching of relays
decreases useful life more rapidly than no-load switching. Refer
to the product data sheet for approximate lifetimes under
different loads. Premature wear-out due to application
requirements and damage due to accidental over-current or
over-voltage conditions are not covered by product warranty.
Switch Model Default Path
M9130A SPDT Switch, 26 channels All relays open (COM to NC terminal)
M9131A SPDT Switch, 64 channels All relays open (COM to NC terminal)
M9132A SPST Switch, 50 channels All relays open
M9133A SPST Switch, 100 channels All relays open
M9135A SPST Power Relay, 20 channels All relays open