User's Manual

Configuring the Network
Introduction
The HopNet 10 Series family of products provides reliable wireless connectivity for
point-to-point applications. HopNet products employ frequency hopping spread
spectrum technology. This technology ensures:
• Maximum resistance to noise
• Maximum resistance to multipath fading
• Robustness in the presence of interfering signals
The HN-110 is NEMA 4X weatherproof versions of the HopNet product line. The
interface to the 110 allows the Host to communicate with the Remote unit through an
integrated 6 ft (2 meter) cable. The HN-110 can act as either a base or remote.
The HN-110 Remote has an internally mounted 6 dBi patch antenna. The built-in
antenna of the HN-110 case greatly eases outdoor installation since no antenna
feedline cable or adapters are needed. The 6 dBi antenna gain increases the radiated
EIRP to +20 dBm and the effective receiver sensitivity to –86 dBm.
HopNet Benefits
The HopNet family of products is built with rugged enclosures compliant with IP 66
and NEMA 4X standards for outdoor and harsh industrial environments. All Hopnet
products work with each other and can be mixed and matched in a single network.
Operating Frequency
The HopNet family operates in the 2.4 GHz ISM band that allows for license-free use
and worldwide compliance.
HopNet Frequency Hopping Spread Spectrum Advantages
In the frequency domain, a multipath fade can be described as a frequency selective
notch that shifts in location and depth over time. Multipath fades typically occupy
five percent of the band. A conventional radio system typically has a five percent
chance of signal impairment at any given time due to multipath fading.
Frequency Hopping Spread Spectrum reduces the vulnerability of a radio system to
both interference from jammers and multipath fading by distributing or spreading the
signal over a larger region of the frequency band.
The fade resistant, HopNet frequency-hopping technology employs up to 79 channels
and switches channels over 1600 times a second to achieve high reliability
throughput.
HopNet Data Integrity
An on-board 3 KB buffer and error correcting over-the-air protocol ensure data
integrity even in the presence of weak signals or jammers. The serial interface
handles both data and control of asynchronous data rates of up to 115 Kbps.
6 HopNet 110