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LenelProx Readers
Notes:
The Beeper sounds as described without connecting the yellow wire to the controller.
Beeper, Hold, and LED lines are logic levels. Never apply power to them. They may be pulled
to a low level (0 to 1.2 VDC) to enable their function, and left floating at a high level (3.6 to
5.0 VDC) when not used.
Use the LPMR-1824-MC (the metal-compensated form of the LPMR-1824) only when nearby
metal will reduce the performance of the standard LPMR-1824 reader.
When using the LPMR-1824-MC reader, it should be mounted on a metal surface that is larger
than the 8 x 8 inch reader housing. Lenel recommends a metal surface 12 square inches or
larger.
LPMR-1824 and LPMR-1824 MC readers have both Wiegand and RS-232 interfaces.
102.9
LenelProx LPLR-911
The LPLR-911 reader is a long-range (9 to 11 feet) reader that works with paper-thin passive windshield-
mounting tags or surface-mounting tags. This reader comes with a unique combination of long read range,
small size, and low power consumption. The LPLR-911 has an internal power converter, allowing it to work
with a wide range of supply inputs without affecting its performance. With a 12 VDC supply, its current
consumption is less than 450 mA, making it possible to be powered directly from the supply in the access
control panel, thereby eliminating the need for an external supply. LPLR-911 has simultaneous Wiegand and
RS-232 outputs. Its primary applications are automated parking garage entrance control, hands-free access
control, asset tracking, and asset management applications.
102.9.1
Preparing for Installation
Always conduct a site survey before starting installation. Avoid any possible sources of interference. If the
reader is not installed properly, the performance will be degraded or more seriously the reader may be
damaged. The following is a list of installation procedures that should be followed during installation:
•
Do not install the reader in an area where sources of broadband noise may exist. Avoid mounting the
reader facing a cellular phone tower or in close proximity to the base station of a 900 MHz wireless
telephone.
•
Keep all of the reader wiring at least 12 inches (30 cm) away from all other wiring, including, but not
limited to, AC power, computer data wiring, telephone wiring, and wiring to electrical locking devices.
•
Do not operate the reader in close proximity to any 900 MHz wireless equipment.
•
Avoid mounting the reader under direct sun light. Sun light in some locations may cause the reader to
operate at a temperature above the 65 degrees Celsius upper limit.
•
Make sure that the supply voltage of the reader is within specification.
•
Use cables with over-all shield (screen).
•
For best results, run the cable in an individual conduit with at least 12 inches distance from the AC
power, computer data cables and cables for electrical locking devices.
•
Use recommended cable. Do not use any unshielded "Twisted Pair" type cable.
•
Use the largest wire gauge possible.
•
Use dedicated power supply, where necessary.
520 —
revision 7
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