Chamberlain HS670 - Manual (Page 20)

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SEQUENCED ACCESS MANAGEMENT SYSTEM (SAMS)
SAMS DEFINITION
The Sequenced Access Management System or SAMS allows the customer more control when managing vehicular entrances to areas
such as industrial complexes, businesses and airports. The basic concept of the system is that traffic is controlled by two gates
installed in tandem, a fast moving gate such as a barrier gate operator and a slower moving more secure or ornamental gate such as a
single or pair of slide/swing gate operator. The design of this gate system balances the demands of speed during high traffic periods
with security during low traffic periods. Barrier gates typically have the fastest open times of the many gate operator types and the slide
or swing gates allow you to effectively seal off the perimeter of the complex you are planning to secure.
NOTE: Connect all entry devices to the slide or swing gate. If using a device, such as a 7-day timer, to latch the slide or swing gate
open during high traffic times, connect the device’s N/O relay output to the GL board’s Interrupt Loop input. Once the device activates
the Interrupt Loop input, the next vehicle to access the SAM system will lock the gate in the open position until the device deactivates.
When the device deactivates, the timer to close will automatically close the gate.
SAMS OPERATION
1. When an authorized vehicle accesses the gate system, the
SAM system responds by first opening the gate farthest from
the vehicle, the swing or slide gate.
2. Once the swing or slide gate is open, the barrier gate begins
its open cycle.
3. Once the barrier is open the vehicle may pass through the SAM
system. At this point you have two options in how you would
like to initiate the SAM systems closure. You may chose to:
a) Use a timer to close system to automatically close the
barrier gate after a preset amount of time or
b) Use a loop system to close the barrier gate after the vehicle
has passed through the SAM system.
4. Once the barrier gate is closed the slide or swing gate will
activate its internal timer to close and begin closing.
5. If another authorized vehicle accesses the SAM system before
the slide or swing begins to close the barrier will open and
allow the vehicle to pass through the SAM system.
6. If another authorized vehicle accesses the SAM system during
the slide or swing gates closing cycle the SAM system will
reopen the slide or swing gate. Once the slide or swing gate
reaches the open position the barrier will then open to allow
the vehicle to pass through the SAM system.
7. If no other authorized vehicles access the SAM system the
swing or slide gate will close followed by the barrier.
SAMS WIRING
1. Install conduit between the BG770 and the HS670 for SAMS
control wiring.
2. Run a 4-conductor cable in the conduit between the BG770
HS670.
3. Locate the SAMS relay terminals (J5) on the GL board in the
HS670 and locate the auxiliary limit switch in the BG770.
4. Attach a wire from the SAMS relay terminal (J5) on the GL
board to terminal 1 on the BG770 terminal strip.
5. Attach a wire from the SAMS relay terminal (J5) on the GL
board to terminal 3 on the BG770 barrier gates terminal strip.
6. Attach a wire from terminal TB5 to the common (COM) on the
auxiliary limit switch in the barrier gate.
7. Attach a wire from terminal TB8 to the normally open (NO) on
the auxiliary limit switch.
8. Test for correct functionality of the SAM system.
O P T I O N A L C O N T R O L D E V I C E S
1 (OPEN)
3 (COMMON)
AUXILIARY LIMIT SWITCH
N/O
COM
INTERRUPT LOOP INPUT
TB5
TB8
SAMS RELAY AT J5
N/O
COM
BG770 BARRIER GATE TERMINAL BLOCK
TERMINAL STRIP
BG770
BG770
SAMS
Conduit
Hold Open
Loop
TRAFFIC
STREET
COMPLEX OR
PARKING LOT
HS670
HS670
Interrupt
Loop