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Notice to users/installers using the 24 dBi parabolic dish antenna in conjunction with all Murata RF products. FCC rules limit the use of this antenna, when connected to Murata RF products for point-to-point applications only. It is the responsibility of the installer to ensure that the system is prohibited from being used in point-to-multipoint applications, omni-directional applications, and applications where there are multiple co-located intentional radiators transmitting the same information.
• Robustness in the presence of interfering signals The HN-250 and HN-250X are NEMA 4X weatherproof versions of the HopNet product line. The HN-254, which is an HN-250 with a 4 ft. cable, is also available. The interface to the 250 and 250X allows the Host to communicate with the Remote unit through an integrated 50 ft (15 meter) cable.
Install the HopNet Configuration Wizard on a PC. The HopNet Configuration Wizard is located on the software and documentation CD included in the HN-250 package. Install the program by inserting the CD in the PC and following the installation wizard. If Autorun has been turned off, double-click on setup.exe on the CD to start the wizard.
HopNet Configuration Wizard program by double-clicking on the icon on the desktop. The HopNet Configuration Wizard will automatically detect which serial port the HN-250 is connected to and the baud rate of the HN- 250. When the radio has been detected, the Continue button will appear.
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The program will read and display the current settings of the HN-250. The HN-250 is shipped from the factory as a remote. The Remote button on the Wizard screen will appear depressed indicating the HN-250 is a remote. NOTE: The S/N displayed in the bottom left corner is the serial number of the radio inside the unit and is different from the serial number of the HopNet unit.
232 DB-9 serial interface. To have all functions of the HN-250 available, including configuration and hardware flow control, the eight signal lines must be connected. The HN-250 serial connector is set up as a DCE device. This allows communication with a PC using the straight through serial cable provided with the HN-250.
Because the antenna in the HopNet Remote is inside the unit, the antenna must have a clear line of sight. Use the sticker on the HN-250 Remote unit to help you locate and aim the antenna. The sticker indicates which direction the antenna is pointing.
NOTE: The HopNet configuration Wizard is used with a variety of Murata radios. Not all radios support all the functions and features of every Murata radio. Thus, some selections in the Wizard will be grayed out if they are not applicable to the radio in use.
Configuration Commands The HN-250 is configured and controlled through a series of commands. These commands are sent to the modem directly when the modem is in Control Mode when the modem is in Data Mode if the escape sequence is enabled. The command syntax is the same for either method, a one- or two-letter command followed by one or more parameters.
This avoids the expense of dedicated repeaters whose only purpose is to repeat data transmissions it receives. The HN-250 in S&F mode, listens on one hop and then relays or repeats the received data on the next hop. Thus the throughput of data passing through an S&F repeated is cut in half.
Network Commands Network commands are used to set up a HN-250 network and to set radio addressing and configuration. Command Description wb[?|0|1] Set Transceiver Mode 0 = remote (default) 1 = base station 2 = repeater 3 = root repeater...
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Set Hopping Pattern The HN-250 has 32 preprogrammed hopping patterns (also referred to as network numbers). By using different hopping patterns, nearby or co-located networks can avoid interfering with each other’s transmissions. Even if both networks tried to use the same frequency, on the next hop they would be at different frequencies.
Display Modified Parameters Recall Factory Defaults Resets the HN-250 to its factory default state. This is useful for testing purposes or if there is a problem in operation of the system and the configuration is suspect. Use the Store Memory command afterwards if you wish the factory default settings to be remembered the next time you cycle power or reset the radio.
Customer Support Introduction Murata products are designed for long life and trouble free operation. The following information is provided if servicing becomes necessary. Technical Assistance Technical assistance for Murata products is available during the hours of 8:30 A.M – 5:30 P.M. Eastern Standard Time. When calling, please have available the complete model name, serial number, and a complete description of the problem.
Technical Specifications Refer to the tables below for the technical specifications for the HN-250 Remotes. Electrical Specification Value Transmitter FCC ID HSW-2450M Transmit Power EIRP: +24 dBm Hopping Patterns User configurable, 32 patterns (networks) available Number of Channels 86 US; 50 France Line-of-Sight Range Greater than 3.5 miles (up to 20 miles with HN-...
One of the files unpacked with the program is the INIT.INI file. It contains the entries below and an explanation has been included on how each parameter may be used. ErrorLevel=0 Leave this value as is. Only change it at the request of Murata Tech Support. BiDirectionalHigh=55 BiDirectionalMedium=40...
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