LX7406 Owner's Manual
Revised February 21, 2019
Page 10
800.445.7846 · www.electro-mech.com
provide wire nuts, crimp splices, or other means to connect the wires.
The splice point should stay inside the junction box. That is, you want to feed the long
run of data cable into the box rather than pulling the pigtail out. Electro-Mech provides
a strain relief on one side of the junction box to secure the cable. You may choose to
connect conduit directly to the junction box, in which case the strain relief will not be
needed. The junction box is designed to accept 3/4-inch conduit fittings.
We recommend running data cable in conduit from the junction boxes to the shot clock
displays
─
especially where the cable would otherwise be exposed. You should never
run data cable in the same conduit as power cable. Having more than one run of
scoreboard data cable in a single conduit is perfectly fine.
One more warning about data cable: Never split or branch the cable. The current loop
signal we use to transmit data to the scoreboard and shot clock displays will behave
unpredictably if it is divided between two destinations. There are other options for
getting synchronized data to two locations, including daisy chaining
─
which will be
discussed below. If your facility calls for a more complicated cabling plan, it is best to
work out the details with your scoreboard sales rep prior to installation.
Stereo Plug
In standard configuration, data enters the locker room clock cabinet through a port
located along the side. There are two common methods for bringing the last few feet of
data cable to the clock. One method involves installing a junction box on the wall or
other structure near the display. From here you can run a patch cable to the shot
clock's data input port. The standard clock package does not include extra junction
boxes and patch cables for this type of cable
routing. However, the materials are readily
available from Electro-Mech.
The other method requires the right-angle
stereo plug assembly, which Electro-Mech
provides with all hard-wired indoor scoreboard
packages. In the case of locker room clocks,
there will be two plug assemblies to terminate
the two cable runs required. The assembly
consists of the main plug body, an insulating
sleeve, and a cover.
