9
Tyc
o C
ON
FID
EN
TIA
L
Table 4 indicates maximum wiring distances per Wiegand standard with
the three most common gauges of cable.
INSTALLATION NOTES
Unless otherwise specified in this document, please follow the guidelines
below:
1. Shielded cable is recommended in electrically noisy environments.
2. You may use a local power supply for the reader. If so, do not connect
the power supply from the controller to the reader. The ground line of
the local power supply must be connected to the power supply of the
controller
.
The unit needs to be operated with a power source with limited
power consumption according to EN 60950-1 (2003) paragraph 2.5
.
3. Use of a pull-up resistor may be required by some controllers. Consult
your controller manual.
4.
For tamper wiring, connect Pins 11 and 12 to a normally closed
supervised input, as shown in Figure 3
.
FIGURE 3.
Normally Closed Wiring for Reader Tamper
TABLE 4.
Maximum cable distance for 18, 20, or 22 AWG wire
Wire Gauge
18 AWG
20AWG
22 AWG
Cable
Distance
500 feet
(152 meters)
300 feet
(91 meters)
200 feet
(61 meters)
