Limitless™ WPMM Series
Issue 2
50051864
Honeywell Sensing and Control 25
7.2.3
Antenna Connection, Styles, and Mounting Options
WARNING
RF EXPOSURE
To satisfy FCC RF exposure requirements for mobile transmitting devices, a separation distance of 20 cm
[7.87 in] or more should be maintained between the antenna of this device and persons during device
operation. To ensure compliance, operation at closer than this distance is not recommended. The antenna
used for this transmission must not be co-located in conjunction with any other antenna or transmitter.
Failure to comply with these instructions could result in death or serious injury.
CAUTION
Power to the WPMM monitor should not be applied during installation of an antenna as damage could occur
to the WPMM monitor electronics.
7.2.3.1
Antenna Connection
Physical connection of the antenna to the WPMM monitor is accomplished by using mating RP-SMA connectors:
plug and jack. Integral-mount antennas have an RP-SMA plug that connects directly to the WPMM RP-SMA jack.
The remote mount antenna uses a cable with a RP-SMA plug that connects directly to the WPMM RP-SMA jack
allowing the antenna to be remotely mounted away from the WPMM monitor. Mounting options are based on user
preference, communication agency approvals, WPMM monitor mounting location, and obstacles as discussed in
Section 6.2.1.
An
integral or remote mount antenna
can be easily mounted by threading the mating RP-SMA plug of the
antenna to the RP-SMA jack on the WPMM monitor. Reference section 7.5 for further details on extra environmental
protection of RP-SMA connections. Tighten the RP-SMA connection until finger tight, and then attach the lime/black
guard finger tight. See Figures 15 and 16.
Figure 15.
Limitless™ WPMM RP-SMA Connection,
Integral
Figure 16.
Limitless™ WPMM RP-SMA Connection,
Remote
7.2.3.2
Antenna Styles and Mounting Options
Choosing an antenna mounting style depends on application conditions, along with antenna benefits and/or features
and user preference. The antenna’s gain (discussed further in Section 7.4) to some extent determines physical size;
also a consideration is the amount of room available in the application.
Straight or Tilt/Swivel:
A benefit of the straight antenna is its rigid design and resistance to being repositioned
(shock, vibration, wind, etc.) when compared to a tilt and swivel design. It is also more resistant to weather
conditions as there’s no swivel-joint connection for contaminants to enter. A benefit of the tilt & swivel design is that
it allows easier positioning in relation to other antenna(s) to obtain a suitable RF signal.
