User's Guide

©WhereNet Corp September 2006D1312r01 WhereTrack Users Guide 28September07.doc Page 13
FEL
A FEL is a large CHE that can create large container stacks and deliver and receive container to and from UTRs and over-
the-road trucks. FELs vary greatly in design, depending upon the make/model. Some FELs are designed to pick up
empty containers (‘Side Handlers’), and some are designed to pick up loaded containers (“Top Handlers”). Sample FELs
are limited to stacks of containers up to 5-high, whereas others can work with 6-high and 7-high container stacks. Sample
FELs are shown below.
Variations among FEL manufacturers and specific models exist and their impact on the specific installation of the WNC,
PTIU, and sensors are the responsibility of the customer.
The PTIU is housed inside a NEMA enclosure that is usually installed in the space underneath the FEL operator’s cab. To
date, the PTIU generally does not connect to the FEL (Top Handler) PLC in order to obtain the necessary telemetry data.
Generally, the PTIU ‘taps’ onto existing sensor or new sensors are installed in lieu of a direct PLC interface. The Gen1
WhereNet products on an FEL are: one WhereMast and mount, one WhereDome with cabling, two hardened WPs, two
rugged WP mounts, and two WP health tags. In a Gen2 configuration, the individual STHOs housed inside the
WhereDome obsoleted. The WhereDome instead houses the WNC, GPS antenna, and RTLS/WiFi antennas. It is
anticipated that the WNC will be housed in an enclosure different from the use used one UTRs/RTGs/etc due to the
specific constraints of the WhereMast/WhereDome dimensions.
In the Gen1 solution, the WhereDome also houses the digital compass, which is provided by PACECO. For the Gen2
solution, PACECO and WhereNet will determine whether the compass can instead be installed elsewhere on the FEL,
such as on the rooftop of the operator’s cab.
A block diagram of the components and connectivity of the Gen2 hardware is shown below. For planning purposes, the
FEL compass is shown as being installed outside the WhereDome/WhereMast.