User's Manual

LF BUS Beacon – Installation Guide
www.elpas.com
Page 6 of 7
V22/Jan 2013
General Purpose Inputs
Both the primary beacon (P/N: 5-ALA00125-12) and the
secondary beacon (P/H: 5-ALA00125-2) have two general
purpose inputs designated IN1 and IN2.
EOL supervision may be added to either of these inputs to detect:
Open, Close, Line Cut and Line Short circuit conditions using
optional Elpas End-of-Line Terminators (P/N: 5-IOX00001).
Note: Primary beacons that contain the Wiegand output option
(P/N: 5-ALA00125-11) contains only Input1.
Transmission Suppression Option
Input1 on all BUS Beacons may be used to disable the LF field by
shorting IN1 with GND. This allows the user to temporary override
the beacon with a security detector, such as a passive infrared.
However Input1 may be used as a normal general purpose input
when an Elpas End-of-Line Terminator, (P/N: 5-IOX00001) is
connected to the input as illustrated in the above section.
Digital Output
Both the primary beacon (P/N: 5-ALA00125-12) and the
secondary beacon (P/H: 5-ALA00125-2) have one general
purpose digital output, which provides open-collector switching
(up to 100mA, 28Vdc)
Recommended Cable: 22 AWG, unshielded/twisted pair
Wiegand Output
Primary beacons with the Wiegand output (P/N: 5-ALA00125-11)
provide one 26-bit Wiegand output (instead of a digital output) for
sending Elpas tag IDs to third-party access control panels.
Recommended Cable: 22 AWG, unshielded/twisted pair