DKS 1601 - Timer down Application

2.4.5 TIMER DOWN APPLICATION
• Use a 9405 loop detector plugged into the DOWN port on the 1601 circuit board. Connect
the REVERSE loops, wired in series, to terminals TB-1 and the ARMING loop to terminals
TB-2.
• If the optional arming loop is not used, use a 9406 detector plugged into the DOWN port on
the 1601 circuit board and connect the REVERSE loops, wired in series, to terminals TB-1 on
this detector.
• The timer (SW-1, switch 7) should be ON. The arm will rotate down after the vehicle clears
the reverse loops and the timer times out.
• SW-1, switch 4 must be OFF.
• Spacing of the loops is critical when using this configuration. Be sure that the loops are
spaced as shown in the diagram.
Access
Control
Device
Arming Loop
(Optional)
Traffic
Reverse Loop
Speed Bump
Reverse Loop
COM
N.O.
TB 2
TB 1
9405 Loop
Detector
DOWN
PORT
614
1601 Terminals
Figure 19
26