User Manual

Chapter 5 DataReader Installation and Operating Instructions
Hi-G-Tek Ltd. Micro electronics & Asset Tracking Technology - 59 -
using higher temperature rated cable. Environmental considerations: In an
outdoor installation, the cable should withstand all outdoor conditions,
including wat er proof, t emperat ure, ruggedness et c.
Example:
A setup of 10 DataReaders with 20 meter 24AWG cable between
DataReaders and 24v supply to the first DataReader.
The ohmic resistance between DataReaders is 3.4 Ohms (20 meter of
supply and 20 met ers of ret urn). Calculat ing the volt age drop across t he
lines gives 5v only, left to the last DataReader in the chain. T his is below
DataReader specification of DataReader minimum supply voltage. If two
conductors are used for supply and ret urn, t he ohmic resist ance would be
3.4/2=1.7 ohm. The voltage to the last DataReader in the chain would then
be 17v, well above the minimum voltage required.
If you experience difficulty calculating the voltage drop across the supply
line, cont act your dist ribut or for assist ance.
5.7 Installation Notes
The DataReader is distributed to a commercial/industrial use only, and
should only be sold to the professional customers.
When installed outdoors, the unit shall be installed in accordance with the
NEC or CEC.
Installation must be performed according to this user manual, and by a
professional personnel only.
It is the responsibility of the installer to ensure that when using the outdoor
antenna kits in the United States (or where FCC rules apply), only those
antennas certified with the product are used. The use of any antenna other