Page 1.1
18 BANK, 3 CHANNEL, 1-POLE MULTIPLEXER MODULE 40-617
pickering SECTION 1 - TECHNICAL SPECIFICATION
SECTION 1 - TECHNICAL SPECIFICATION
Com.
Multiplexer Bank 1
Isolation
Switch
Chan 1
Chan 2
Chan 3
Com.
Isolation
Switch
Chan 1
Chan 2
Chan 3
Com.
Isolation
Switch
Chan 1
Chan 2
Chan 3
Multiplexer Bank 2 Multiplexer Bank 18
(No Channel Selected) (Channel 1 Selected) (Channel 3 Selected)
Inter-Bank Linking Switch Inter-Bank Linking Switch
A1
C1
A2
C2
A3
C3
A12
C12
12 off SPST Uncommitted Relays
40-617
18-Bank, 3-Channel, 1-Pole Multiplexer Module
●18 Separate Multiplexers in One Module
●Each Multiplexer is Single Pole, 3-Way
●Isolation Switches to Reduce Signal Loading
●Inter-Bank Linking Relays Allow Multiplexer
Size to be Increased in Multiples of 3
●Includes 12 SPST Uncommitted Relays
●Multiplexer Channels Can be Set Individually
●Any Number of Multiplexer Channels Can be
Set Simultaneously
●Switches Up To 100 Volts, 1 Amp, 20 Watt.
●Uses High Reliability Ruthenium Reed Relays
for Maximum Performance
●VISA, IVI & Kernel Drivers Supplied for
Windows
●Supported by PXI or LXI Chassis
●Supported by eBIRST
●3 Year Warranty
The 40-617 18-Bank, 3-Channel, 1-Pole Multiplexer Module
forms part of the System 40 PXI Programmable Switching
system. The Module consists of 18 electrically isolated banks
of multiplexers controlled by a PXI/PCI interface. Each bank
is a 1 to 3 multiplexer and operates with break-before-
make action when a new channel is selected. Any Individual
multiplexer bank can have a channel set by itself, alternatively,
multiple banks can have channels selected simultaneously.
Inter-bank linking relays allow multiplexer size to be increased
in multiples of 3 by joining the common terminals of adjacent
banks. Closing one linking switch produces a 6 channel
multiplexer, closing all linking switches produces an 54 channel
multiplexer
Built-in Isolation Switches are used to connect only currently
active multiplexer banks to their respective analogue
commons. This keeps capacitive loading and leakage currents
in large multiplexer systems to a minimum.
Switching Diagram for the 40-617 18-Bank, 3-Channel, 1-Pole Multiplexer Including 12 SPST Relays
Included in the module are 12 SPST uncommitted relays
which are separate from the multiplexers and are connected
to via pins on the front panel plug.
The 40-617 is fitted with high performance instrumentation
grade Reed Relays (Ruthenium sputtered type). These offer
very long life with good low level switching performance and
excellent contact resistance stability.
The module is suitable for cascading in applications that
require large multiplexer systems, it is also suitable for test
systems that require the switching of a large number of
signals in parallel.
Supported by eBIRST
This product is supported by eBIRST which tests the switching
system using an external tool. eBIRST provides a graphical
output of its tests which includes an image showing the
location of any defective relay. For more information on eBIRST
see 93-000D.pdf
