User's Manual

ALC LF BUS Beacon – Installation Guide
www.elpas.com
Page 4 of 12
V2/Dec 2014
Mode Selection
Mode selection DIP switches on the front of the PCB allow users to select whether a certain device is a primary or a secondary one, whether
the device uses Wiegand outputs or digital outputs, and whether the device uses a second input or a second open-collector output.
To set according to your requirements, see the table next to the set DIP switches:
 Top Switch – Push left to set device as Primary. Push right to set device as Secondary.
 Second Switch – Push left to set a second Input. Push right to set a second open-collector output.
 Third Switch – Push left to set Wiegand outputs. Push right to set digital inputs.
 Bottom Switch – In a secondary beacon, set to A for an in-phase magnetic field or B for an out of
phase magnetic field, according to configuration with primary.
LF Field Adjustment
The size of the LF field generated by any of the BUS Beacons can be adjusted using the button to control the actual coverage of the LF field
and to reduce the unwanted signal penetration.
ALC LF BUS Beacons support eight ranges from 50cm/20inches to 4m/13ft in
radius. The LED indicators on the front of the PCB (next to the DIP Switches) show
the range. To set the range, press the button next to the LED indicators. Each
double button press sets to a higher range. After you get to the eighth, every double
button press sets to a lower range. From 1 to 8 and from 8 to 1.
Note: You must open the front cover to access the button and see the LEDs.
Note: In practice the coverage area (for each range mode) regardless of beacon type may vary +/- 20% by specific Active RFID Tag as well as
the active RFID Tag’s physical orientation in relation to the LF field.
Key Mounting Considerations
1. LF BUS Beacons MUST NOT BE MOUNTED directly onto any metallic surfaces.
2. LF BUS Beacons MUST NOT BEMOUNTED closer than 30cm/12in from metal barriers (such as signs/pillars/beams) in any direction.
3. LF BUS Beacons MUST BE MOUNTED as far away as possible from all other pieces of equipment (such as large electrical motors,
HVAC and refrigeration compressors) that may emit magnetic fields.
CAUTION! To ensure the safety of all individuals who need to be in the general area of the beacon’s LF field for extended periods of time the
installer MUST ENSURE that the beacon is installed at a location such that personnel remain at a sufficient distance as advised by the
guidelines below:
Distance
Time
0-30 cm (0 -12 inches)
Up to 30 minutes per day
30-60 cm (12 -24 inches)
Up to 180 minutes per day
60-90 cm (24-35 inches)
Up to 9 hours per day
Plus 90 cm (more than 35 inches)
No time limit
Single Door Placement
Mount the primary beacon on the wall adjacent to the opening
side of the door, at a height of 1.2m/4Ft. above the floor.