VTI Instruments Corp.
64
EX1200-3164 Plug-in Module
EX1200-3164
P
LUG
-
IN
M
ODULE
16
(1
X
4)
2-
WIRE
300
V/
2
A
MP
M
ULTIPLEXER
The EX1200-3164 high-density multiplexer module is designed to provide a flexible switching
multiplexing architecture with 16 individual 1 x 4 2-wire multiplexers. Up to 96 1 x 4 two-wire
channels can be accommodated in a 1U EX1200 full rack mainframe for maximum density, or
mixed and matched with other EX1200 plug-ins for flexibility. Applications include cable harness
testing, semiconductor and PCB testing, and those in which multiple points need to be switched to
a common resource. All relays also have individual control, and each path allows for hot switching
of up to 300 V and 2 A (60 W dc max).
Each bank can be interconnected within a module under program control (via bussing relays) to
form larger 2-wire muxes, up to a maximum of 1 x 64. The EX1200 analog bus can be used to
configure larger multiplexers across modules as required to eliminate external wiring and helps
reduce unterminated stubs effects. The analog bus can also be routed directly to the optional
EX1200 series 6.5 digit DMM for direct measurements across the backplane further reduce
external wiring. Stub-breaking relays remove the module from the analog bus to minimize a
module’s effect on measurements being made through other modules.
An optional terminal block provides screw termination points for external field wiring. This
terminal block also includes cold junction compensation reference for more precise temperature
measurements.
The EX1200-3164 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.
356H
Figure 4-23 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.
C
ONNECTOR
P
INS AND
S
IGNALS
F
IGURE
4-22:
EX1200-3164
F
RONT
P
ANEL
(F
RONT
V
IEW
)
Summary of Contents for EX1200 Series
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