Figure 5: Parking Entrance/Exit Application A - GE Interlogix 260 Installation Manual

To ensure proper operation and optimal read range, take the following
precautions:
1. Mount all readers before tuning any of the readers.
2. Ensure that the back-to-back distance is at least 3.28 feet (one meter).
Note: If a metal plate is installed between the two readers, the
back-to-back distance restriction may be ignored. However, read
range will be reduced to approximately 9.45 inches (240 mm).
Note 2: Reduced credential read range and the simultaneous read of
a credential by both readers may result if the readers are installed
less than 19.68 inches (500 mm) apart.
3. Ensure that the vertical separation distance is at least 19.68 inches
(500 mm). A more narrow vertical separation gap may be used if the
simultaneous read of a credential by two or more readers is
acceptable.

FIGURE 5: Parking Entrance/Exit Application A

A common use for the GE Model 260 is parking lot applications.
However, the parking lot application presents opportunities for all of the
interference types as described earlier.
8 GE Contactless Medium Read-Range Reader Model 260
Gate
Ctrl
IN
Back-To-back
distance
OUT
Gate
Ctrl