Certificate, Assembly and Operation Manual
6 INSTALLATION INSTRUCTIONS
6.1 Installation details
It is recommended to install the reader near to operating device. The mounting height of
the reader is determined by convenience of card presentation (normally 90 – 150 cm from
the floor).
The following factors must be considered:
Close electric interference sources shorten card reading distance, therefore reader
must be installed at min. 1 m whilst its cable laid at min. 30 cm distance from
computer monitors, electric generators and motors, ac relays, thyristor light
regulators, ac lines, computer and telephone signals.
When reader mounted on metal surface the code reading distance from card
reduces to 15–25 %.
If the reader is mounted behind metal surface it is necessary to cut out the window
in it and install the reader opposite and equidistant to window edges (Ref. Fig. 2)
provided that window measures are min. 225×130 mm. The window can be covered
with non-metal panel (for ex. plastic) whilst reader can be recessed inside the
window at max. 20 mm distance from metal surface front side
– at this mounting
variant the code reading distance reduces to 30 – 50%.
Distance between two readers should be min. 50 cm.
Figure 2. Reader installation behind the metal surface
6.2 Cables parameters
Recommended cable type for connection reader to external controller - F/UTP2-Cat5e
2×2×0.52 (max. distance – 50 m). At a greater distance, a cable with a large cross-section
of cores should be used.
Note:
Maximum distance between the reader and external controller is 200 m and
depends on the cable cross-section. For selecting the cable type please contact
PERCo specialists.
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