Paxton Hands free demonstration unit - Manual (Page 4)

Page 4
When using in and out readers, users may be picked up by both readers as they move through
the door which will affect the reliability of any Roll Call or Anti-passback application. Ensure that
sufficient spacing is provided between these readers for optimum range and reliability.
For example, the minimum distance between a P200 and a P50
reader should be greater than the combined read range of 3.6m
(P200 hands free range = 2.5m + P50 hands free range = 1.1m)
The token communicates with the interface using a wireless device at 2.4GHz. This frequency
is ideal for low power, short-range communication and enables the high speed transmission of
secure, encrypted data packets.
The interface should be physically positioned within 15 metres of the reader regardless of the
actual cable length between them. Wireless technology can be susceptible to environmental
factors so if problems are experienced it may be necessary to reposition or move the interface
closer to the reader.
The hands free interface contains the main radio aerial and so should not be housed in a metal
enclosure, behind metal girders, reinforced concrete, etc or the read range will be greatly
reduced.
Reader Position
Interface Position
The read range of the system depends on the type of reader chosen.
P38 0.85 m
P50 1.1 m
P75 1.5 m
P200 2.5 m
2.0 m
Long Range Reader 5.0 m
P200 metal mount
Read Range
When a reader is connected to a hands free interface board for the first time the reader firmware will
be modified to enable the reader to transmit the address of its interface every 100ms.
The location of both reader and the interface directly affects the operation of the system.
As the reader is constantly transmitting interface information, it must be placed outside the field of
adjacent readers, loop aerials etc, or this data may be corrupted.