Multiplexing Basics
2-9
Mixing card types
Different types of cards can be used together to create some
unique switching systems. For example, you could have a
Model 7015 multiplexer card installed in one slot and a Mod-
el 7012 matrix card installed in another slot.
Figure 2-12 shows one possible switching system using a
matrix card and a multiplexer card. The backplane jumpers
for both the matrix and multiplexer cards must be installed.
This arrangement allows matrix rows to be connected to
Figure 2-11
Multiplexer input expansion example
1
10
Bank B
Bank C
Bank D
Bank A
7015
1
10
1
10
1
10
7001/7002
Analog
Backplane
Card 1
Quad 1x10 Multiplexers
7015
1
10
1
10
1
10
1
10
Card 2
Backplane
Jumpers
installed
Quad 1x10 Multiplexers
Quad 1x20 Multiplexer
multiplexer banks. On the multiplexer card, the bank-to-
bank jumpers must be removed to maintain isolation be-
tween matrix rows. See the instruction manual for the Model
7012 for complete information on the matrix card.
2.4.2 Mainframe multiplexer expansion
Multiplexer systems using up to 12 or 60 multiplexer cards
are possible by using six Model 7001 or 7002 mainframes to-
gether. Each Model 7015 added to the system provides 40
additional inputs. Paragraph 3.4.3 explains how to connect a
test system using two mainframes.
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Summary of Contents for 7015-S
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