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MSI-9008 CellScale Multiplexer
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User Guide
M E A S U R E M E N T S Y S T E M S I N T E R N A T I O N A L
Multiplexer Cable #502305
To connect a secondary Multiplexer to a primary Multiplexer requires the secondary cable assembly, MSI part number
502305. This cable connects from TB2 on the secondary Multiplexer to TB2 on the primary Multiplexer. The following
table shows the connections.
Secondary Multiplexer Cable 502305 Connections
Secondary
Secondary
Primary
Primary
Mux
Mux
Wire
Mux
Mux
TB2 Pin #
Label
Color
TB2 Pin #
Label
1
DIG2
Gray
1
DIG2
2
DIG1
White/Orange
2
DIG1
3
DIG0
White/Gray
3
DIG0
4
GND
Orange
4
GND
7
- SIG Act
White/Black
5
- SIG Pass
8
+ SIG Act
Green/White
6+ SIG Pass
9
- EXC
Black
9
- EXC
10
- Sense
Brown
10
- Sense
11
+ Sense
Blue
11
+ Sense
12
+ EXC
Red
12
+ EXC
Connecting One Multiplexer to CellScale
When connecting a single Multiplexer to a CellScale, the CellScale can control a maximum of nine load cells. This is
accomplished by connecting a Multiplexer with up to eight load cells to one CellScale input and a single load cell to the
second input. The following diagram illustrates this.
This connection requires the use of the pass thru signal to be used for the ninth load cell. This ninth load cell will be
added to the CellScale scan list as channel 2-1. For information about how to setup the CellScale scan list for this
configuration, see the ”Software Setup section.
