D9412GV4/D7412GV4 v2.03 | Installation and System Reference Guide | 5.0 Power Supply
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Bosch Security Systems, Inc. | 7/16 | F01U265457-09 29
Caution: When connecting two D1218
Batteries to the control panel, both
must have the same capacity (use two
17.2 Ah batteries or two 18 Ah
batteries).
When using two D1218 batteries, use
a separate enclosure, a D122L Dual
Battery Harness, and long leads.
5.2.2 Installing the Battery
1. Place the battery upright in the base of the
enclosure.
2. Locate the red and black leads supplied with
the control panel.
3. Connect the black battery lead to Terminal 4,
and then to the negative (-) side of the
battery.
4. Connect the red battery lead to Terminal 5,
and then to the positive (+) side of the
battery.
Warning: High current arcs are
possible. The positive (red) battery
lead and Terminal 5 can create high
current arcs if shorted to other
terminals or the enclosure. Use
caution when working with the
positive lead and Terminal 5. Always
disconnect the positive (red) lead
from the battery before removing it
from Terminal 5.
Caution: The battery terminals and
wire are not power limited. A 0.25 in
(6.4 mm) space must be maintained
between the battery terminals, battery
wiring, and all other wiring. Battery
wiring cannot share the same conduit,
conduit fittings, or conduit knock-outs
with other wiring.
Figure 6: Battery Terminals
1 - Battery terminals. Terminal 5 is non-power
limiting.
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