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EX1200-4003 Plug-in Module
77
EX1200-4003
P
LUG
-
IN
M
ODULE
D
UAL
4
X
16
T
WO
-W
IRE
M
ATRIX
,
300 V
/
2 A
The EX1200-4003 high-density matrix module allow the user to connect any input row to any
output column, with a DPST relay at every row/column cross point. This architecture provides the
framework for flexible switch system designs where multiple test instruments need to be
connected to common test points. For example, a digital multimeter, counter/timer and digitizers
can be connected to the input rows, and each of these devices can be connected to any of the
output columns depending on the measurement function that is desired during the test. The
connections between rows and columns occur internal to the module which greatly reduces
external cabling.
The smallest building block is a (4 x 16) 2-wire matrix, and rows and columns can easily be
expanded to form larger matrices. A (4 x 192) 2-wire matrix can be accommodated in an EX1200
series full rack mainframe. The two banks of matrices can be connected under program control to
further simplify field wiring.
Fail-safe relays capable of switching up to 300 V and up to 2 A are used to maximize the range of
application spaces that can be addressed with this module. All relays are fail-safe which ensures
that no undesired signals are present at the user interface in the case of power interruption.
The EX1200-4003 can be controlled programmatically using IviSwtch-compliant calls. Both path
level programming and individual relay control are available. Refer to the host driver
documentation for additional details.
358H
Figure 4- provides a logical diagram of the switch module
and identifies the switches used by the module. This information can be used for individual relay
control through the driver. Both single-wire and two-wire programming modes are available.
F
IGURE
4-31:
EX1200-4003
F
RONT
P
ANEL
(F
RONT
V
IEW
)
Summary of Contents for EX1200 Series
Page 166: ......
