Limitations Imposed By 33AH Batteries
Note: This information is applicable to those installations not using the battery shelf described under “Conduit
Entry in Transponder Cabinets with Power Supplies.”
A set of 33AH batteries will not fit in the backboxes when the lower-left mounting screw is in place. Therefore,
when 33AH batteries are to be installed in a box (see Area 2 on form M-1204; Area 1 on form M-l 305; Area 3
on form M-1326; Area 5 on form M-1203; Area 3 on form M-1325; or Area 3 on form M-1293) drill another l/4”
mounting hole in the lower-left corner centered 7-Y=? above the original hole. See Figure 21 for location details.
f
7.5”
c
1.626”
A--
NEW
MOUNTING
/Y %iETER
ORIGINAL
MOUNTING
(DO NOT USE WHEN
33AH BAlTERlES
ARE ORDERED)
New Mounting Hole for 33AH Batteries
FIGURE 21
CABINET
KNOCKOUT
CABINET
i/
KNOCKOUT
CONTRACTOR-CUT HOLE
(CONDUIT NUT MUST CLEAR A MARK
INCHES
FROM THE BOTTOM OF
THE BOX AS SHOWN)
Note: Battery shelf height is 2 inches.
Conduit Location for Transponder Cabinet
Containing a Power Supply
FIGURE 22
Install backbox using a X” hex-head screw with a 1” flat washer in each corner. Mounting fasteners protrude %”
from the back of each backbox, so install a pad (l-7116” square x l/8” thick with a 5116” hole in the center) over
each mounting hole when the backbox is to be installed on a flat surface.
Conduit Entry in Transponder Cabinets with Power Supplies
When a power supply is located in a transponder’s backbox (see Area 2 of Form M-1203, Figure 10) or in an
SCC’s backbox (see Area 1 of Form M-l 293, Figure 14), use Figure 22 to determine appropriate conduit entrance.
A battery shelf is shipped with each transponder cabinet that will contain a power supply: use the shelf by placing
it in the bottom left side of the cabinet. The shelf allows conduit entry on the bottom left-hand side of the cabinet
only.
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