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Back-to-back readers
Models 941, 971 and 973 Readers are suitable for back-to-back
installation (to provide in/out access control). Using the standard
metal mounting plates, the two readers should be mounted with
their centers offset by at least 10 inches to provide interference-
free operation. Using the optional back-to-back metal mounting
plates allows the two readers to be mounted directly opposite
each other on a 4-inch thick wall.
External tamper feature
The Model 94x/97x Readers are also equipped with an external
tamper feature. This feature can be activated by removing the key
on the backplate prior to mounting.
Model 94x only:
Figure 1, Recommended Additional Mounting Instructions for
External Tamper Switch Activation
Figure 2, "Model 940 Reader - Gang Box Mounting" Figure 3,
"Model 940 Reader - Direct Wall Mounting" Figure 4, "Model
941 Reader - Gang Box Mounting"
Reader - Direct Wall Mounting"
tamper feature.
Note:
In order for this feature to work properly, the reader mounting
surface must be flush with the backplate.
Apply the mounting method as shown in
to mounting instructions in
and
Figure 5, "Model 941
if you are using the external
Mounting the reader
9
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