Installation Manual

Page 11 of 15
Issuer: Cara Stephens Doc. Num.: 6640-08-0035 Rev: A
Revised: November 21, 2008
Approval:
6.0 INSTALLATION INSTRUCTIONS
IMPORTANT NOTE:
THE FMN / GWN MUST BE PROFESSIONALLY INSTALLED BY TRAINED PERSONNEL.
6.1 INSTALLATIONS BELOW GROUND (FMN ONLY)
IMPORTANT NOTE:
WHEN USED IN AN UNDERGROUND COAL MINING APPLICATION, THE FMN MUST BE
INSTALLED AS PART OF A MSHA APPROVED SYSTEM. FIXED MESH NODES MUST BE
INSTALLED PER REQUIREMENTS SPECIFIC TO THE APPROVED SYSTEM INCLUDING
CABLE LENGTHS, CABLE TYPES, AND POWER SUPPLIES.
At each of the sites determined by the survey described in 5.1:
6.1.1 Determine the placements for the 900 MHz antennas to ensure proper RF propagation.
The FMN / GWN may be connected to up to four 900 MHz antennas. For units installed
in coal mines below ground (FMN only), mount the antennas to roof bolts using magnetic
antenna mount. Select locations that ensure proper RF communication. Antennas
should not be placed in any location that presents a safety hazard or an opportunity to
be damaged.
6.1.2 Locate a place to mount the FMN / GWN and RF power splitter.
Choose the appropriate splitter (2-way, 3-way, or 4-way) for a given FMN / GWN
antenna configuration. The FMN and splitter should be installed in a convenient central
location in order to minimize the amount of coax cable needed to connect the splitter box
to the antennas. The FMN can be mounted either on a wall or the ceiling. If the FMN is
mounted on the wall, the orientation of the box is not relevant. If the FMN is mounted on
the ceiling, be sure that the lid of the box faces up. This will prevent water from
accumulating in the lip of the lid.
6.1.3 Connect the FMN box, Splitter and Antennas.
The node should be connected to the splitter box with RCL4100-001 cable. Connect one
end of the cable to RF1 on the FMN and the other end to the side of the splitter that has
only one connector. Connect each of the remaining splitter connections to an antenna
using RCL4100-001 cable.
6.1.4. Connect the FMN box to the Junction box or Power Supply.
The FMN should be connected to a junction box or Power Supply with a FAA4200-007
cable. The cable has a Universal Mate-n-Lok connecter on one end and spade lugs on
the other. Install the Mate-n-Lok to the main DC power connector of the FMN (CON1).
The connector will not fit properly into the wrong mate. DO NOT force the connector in.