Unitec CAME Wiring - Manual (Page 9)

Merge Loops
Merge loops are recommended to prevent vehicle queuing errors. These loops prevent a gate from
opening until all paid vehicles have merged into a single line at the tunnel entrance.
The number and size of loops required depends on the size of the merge zone area. The loop
detector in each gate has can accommodate (1) merge loop so the maximum number of merge loops
can not exceed the number of gates installed.
The front edge of a merge loop should be no more than 9 feet away from the back edge of the gate
reset loop to ensure proper detection of vehicles (see Figure 3). If the standard (18 foot) loop available
from Unitec is too small, larger loops can be provided as special orders.
Figure 3. Multi-Lane Merge Loop Placement
System Wiring
General
The payment system should be connected to the wash controller as described in its manual
except, the wash in use signal is not to be connected (as this signal is will be provided by the
gate controller). The following sections provide instructions on connecting the gate and gate
control power and the gate control signal wires.
Document
Number: GC1004 5
Document Title: Unitec CAME Gate and Gate Controller Installation Guide