Pub. 42004-194H
Model 234 Stanchion Assembly
Page:
2 of 11
d:\standard ioms - current release\42004 instr. manuals\42004-194h.doc
09/05
Mounting
A concrete pier is required to support the stanchion.
GAI-Tronics provides the Model 84504 Hardware Kit
to aid with the construction of this pier.
We recommend using as a minimum, 3,000 psi grade
concrete. The pier must be strong enough to support a
structure that is 9
1
/2
-feet tall and weighs 225 lbs.
Reinforcement Cage
We recommend that the concrete base be 3 feet deep
and 18 inches wide, and that a reinforcement cage be
used. The reinforcement cage is not provided by
GAI-Tronics. The following materials are necessary
to construct the reinforcement cage:
•
four #4 rebars;
•
three #4 ties;
•
one 18-inch sonotube.
1.
Construct the reinforcement cage by placing a horizontal
member in the center of the rebar.
2.
Place the two remaining horizontal members 12 inches
from that center point. See Figure 2. The top of the
cage should be 3 inches below the top of the pier.
3.
The reinforcement cage in Figure 2 shows the maximum
diameter that is suitable for a customer-provided 18-inch
sonotube.
4.
Install two conduits in the pier—one for the telephone
wire and one for the electrical power wire.
N
OTE
:
These conduits MUST be kept separate to
prevent interference from occurring on the audio lines.
Conduits are not supplied by GAI-Tronics.
Figure 1. Complete Emergency Station
Figure 2. Reinforcement Cage
