User Manual

Psion Teklogix 9160 Wireless Gateway User Manual 17
Chapter 2: Installation Requirements
Power And Antenna Cables
To eliminate the need for AC wiring, the 9160 Wireless Gateway is compliant with
IEEE 802.3af and can be powered over its Ethernet connection. For detailed infor-
mation, please see “Power Over Ethernet Requirements” on page 230.
Warning: To avoid electric shock, the power cord protective grounding
conductor must always be connected to ground.
2.1.4.2 Antennas
The type of antenna required for each installation depends on the coverage require-
ments and the frequencies used. A maximum of four antenna elements can be used.
These antennas can be a combination of reverse thread SMA “screw-on” diversity
or high-gain WDS antennas. There are several omnidirectional antennas and special,
directional antennas available from Psion Teklogix. Generally, a site survey deter-
mines the appropriate antenna. Consult Psion Teklogix service personnel for more
information.
Warning: Never operate the 9160 without a suitable antenna or a dummy load.
Connection To Outdoor Antenna (Kit P/N 1916641)
The antenna must be installed by a qualified service person and installed
according to local electrical installation codes. The antenna should be located
such that it is always at least 15 ft (4.6 m) high and 10 ft (3 m) from the user and
other people working in the area.
For a 9160 connecting to an outdoor antenna, all the following notes are applicable:
1. The shield of the outdoor antenna coaxial cable is to be connected to
earth (independent of the 9160) in the building installation, provided
the installation is acceptable to the authorities in the country of usage.
2. A supplementary equipment earthing conductor is to be installed
between the 9160 and earth—that is, in addition to the equipment earth-
ing conductor in the power supply cord.
3. The supplementary equipment earthing conductor may not be smaller
in size than the unearthed branch-circuit supply conductors (min 0.75
sq. mm nominal cross-sectional area or 18AWG). The supplementary
equipment earthing conductor is to be connected to the 9160 at the ter-
minal provided, and connected to earth in a manner that will retain the
earth connection when the power supply cord is unplugged. The con-