DigiReader Series
P/N 6600025, R
EV
. D 17
Figure 6: Typical Wiegand Connection
MOUNTING LOCATION
Use care when choosing the installation site. To avoid possible external sources of RF interference,
do not locate the unit near motors, pumps, generators, DC-AC converters, AC switching relays, light
dimmers, or any other devices that emit an electronic radar frequency. Do not locate the unit within
10 feet (3 m) of a computer terminal.
For the mounting of the DR4201 reader, see SPECIAL MOUNTING LOCATION: DR4201 READER,
on page 16.
The DR4203, which is designed to be mounted on a metal door mullion, is the only reader that is
specifically designed to be mounted on metal. Metal in the vicinity of any of the other devices can
reduce the read range. In general, as the amount of metal in close proximity to the device increases,
the reliable maximum read range decreases. For optimum operation, ensure that a DigiReader has
a minimum of 6 inches (15 cm) clearance at the rear and surrounding sides, as shown in Figure
7. Never cover the front of the DigiReader with any type of metal.
Use the method appropriate to the mounting surface material; if required, use sealing compound to
maintain water-resistance.
+16 to +28 VDC
Common
Data A (+)
Data B (-)
Shield
NexSentry
Star I, Star II,
4100
Shield
+VDC
DC Return
Data 0
Data 1
LED 0
LED 1
Universal
Wiegand
Interface
Unit
(UWIU)
DR4205K
or
Third Party
Wiegand
Device
DC
Return
tied to ground
(Shield)
Проектирование
.
Монтаж
.
Продажа
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