Table of Contents
Advertisement
15
FAQs
Can I source and use my own PoE adaptor with the Canopy 150/300 Mb Backhaul? No.
The Canopy 150/300 Mb Backhaul uses a non-standard PoE configuration. Failure to use the
Motorola supplied 150/300 Power Indoor Unit (PIDU) could result in equipment damage and
will invalidate the safety certification and may cause a safety hazard.
What is Multi-beam Space-Time-Coding? The Canopy 150/300 Mbps Backhaul radiates
multiple beams from the antenna - the effect of which is to significantly protect against fading
and to radically increase the probability that the receiver will decode a usable signal. When
the effects of Space-Time-Coding are combined with those of OFDM techniques and a best in
class link budget, there is a significant improvement to the probability of a robust connection
over a non-Line-of-Sight path.
What do you mean by "non-Line-of-Sight"? A wireless connection between 2 points
without optical Line-of-Sight is non-Line-of-Sight. i.e. with obstructions in between the
antennas the transmitted signal is still able to reach the receiver and produce a good quality
link.
What else is special about the Canopy 150/300 Mbps Backhaul? There are many special
features built-in to the hardware of the Canopy 150/300 Mbps Backhaul. The product offers
the highest system gain in its class through high sensitivity antennae for improved signal
recovery. It also features a Software Defined Radio system that operates on ultra fast digital
signal processors but is controlled by firmware giving the ability to download new firmware
when enhancements become available. The Canopy 150/300 Mbps Backhaul has a built-in
web server for advanced management capabilities including detailed radio signal diagnosis.
In which frequency band does the Canopy 150/300 Mbps Backhaul operate? The
Canopy 150/300 Mbps Backhaul operates in the unlicensed ISM band at 5.725 - 5.850GHz.
This means no license is required to operate the Canopy 150/300 Mbps Backhaul.
Why does the Canopy 150/300 Mbps Backhaul operate in the 5.8GHz ISM band? The
5.8GHz band offers the dual benefits of high data throughput and good radio propagation
characteristics. The wide band of spectrum available is subdivided into several channels such
that multiple systems can operate in the vicinity without causing interference to one another.
Is the Canopy 150/300 Mbps Backhaul an 802.11a device? No, although similar, the
Canopy 150/300 Mbps Backhaul uses different encoding and radio transmission systems
than 802.11a. In areas where 802.11a systems are operating, the radio will detect the
802.11a radio signals and choose a clear channel away from any interference.
How much power does the Canopy 150/300 Mbps Backhaul transmit? At all times the
Canopy 150/300 Mbps Backhaul operates within country / region specific regulations for radio
power emissions. In addition, the Canopy 150/300 Mbps Backhaul uses a technique known
as Transmit Power Control (TPC) to ensure that it only transmits sufficient radio power such
that the other antenna can receive a high quality signal.
How does the Canopy 150/300 Mbps Backhaul avoid interference from other devices
nearby? At initialization, the Canopy 150/300 Mbps Backhaul monitors the available
frequency channels to find a channel that is clear of interference. In operation Canopy
150/300 Mbps Backhaul continuously monitors the spectrum to ensure it is operating on the
cleanest channel.
How does the Canopy 150/300 Mbps Backhaul integrate into my data network? The
Canopy 150/300 Mbps Backhaul acts as a transparent bridge between two segments of your
network. In this sense, it can be treated like a virtual wired connection between the two
buildings. The Canopy 150/300 Mbps Backhaul forwards 802.3 Ethernet packets destined for
Issue 1.1 April 2006
Page 150
Advertisement
Table of Contents
