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VX4380 256-Crosspoint Relay Matrix Module User Manual
1–1
Getting Started
This section begins with a brief description of the VX4380 256-Crosspoint Relay
Matrix Module, and explains how to configure and install the module in a
VXIbus mainframe. The quick functional check, also included in this section,
assures that the instrument operates properly.
Product Description
The VX4380 256-Crosspoint Relay Matrix Module is a printed circuit board
assembly for use in a mainframe conforming to the VXIbus Specification. The
VX4380 provides four 4 × 16 2-wire matrix sections. Each section can be
configured to connect either the four rows or the sixteen columns to the section
above or below it to produce up to a 16 × 16 2-wire matrix or a 4 × 64 2-wire
matrix. The VX4380 provides the following features:
H high density single slot VXI relay matrix module with four 2-wire matrices
H 2 A switching maximum current per contact
H 220 VDC, 250 VAC maximum switching voltage per contact
H 60 W, 125 VA maximum switching power per contact
H latching relays for low-power, low-noise operation
H two 160-pin DIN front panel connectors
H low-cost VXI local bus slave interface
H Option 01 – this option enables the VX4380 to control up to 11 additional
relay modules from the Tektronix family of relay modules. These modules
are controlled via the VXI P2 local bus.
H > 15 MHz bandwidth (– 3 dB) for 4 × 16 2-wire matrix
H > 15 MHz bandwidth (– 3 dB) for 16 × 16 2-wire matrix
User control of the VX4380 is achieved by installing the Option 01 VXI
Interface daughter board. This daughter board may be installed on the VX4380
or on another Tektronix compatible relay module which is installed in a VXI
chassis slot to the left of the VX4380. The Option 01 daughter board acts as a
VXI servant to a VXI bus commander. The VXI bus commander sends SCPI
compatible commands to the Option 01 daughter board using VXI word serial
protocol. The Option 01 daughter board in turn controls the VX4380 on which it
is installed and controls additional relay modules installed in adjacent slots to its
right via the VXI P2 local bus. The daughter board is capable of controlling from