PRAESENSA
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Bosch Security Systems B.V.
Underwriters Laboratories Listing Document (ULLD)
2021.12.21 | V0.15b | F.01U.402.882
ensure that other operations are not inadvertently affected, at least 10% of initiating devices
that are not directly affected by the change, up to a maximum of 50 devices, must also be
tested and proper system operation verified.
Verify that wire sizes are adequate
for all initiating and indicating device loops. Most devices
cannot tolerate more than a 10% I.R. drop from the specified device voltage.
Like all solid state electronic devices
, this system may operate erratically or can be damaged
when subjected to lightning induced transients. Although no system is completely immune
from lightning transients and interference, proper grounding will reduce susceptibility.
Overhead or outside aerial wiring is not recommended, due to an increased susceptibility to
nearby lightning strikes. Consult with the Technical Services Department if any problems are
anticipated or encountered.
Disconnect AC power and batteries
prior to removing or inserting circuit boards. Failure to
do so can damage circuits.
Remove all electronic assemblies
prior to any drilling, filing, reaming, or punching of the
enclosure or rack. When possible, make all cable entries from the sides or rear. Before making
modifications, verify that they will not interfere with battery, transformer, or printed circuit
board location.
Do not tighten screw terminals
more than 9 in-lbs. Over-tightening may damage threads,
resulting in reduced terminal contact pressure and difficulty with screw terminal removal.
This system contains static-sensitive components
. Always ground yourself with a proper
wrist strap before handling any circuits so that static charges are removed from the body. Use
static suppressive packaging to protect electronic assemblies removed from the unit.
Follow the instructions
in the installation, operating, and programming manuals. These
instructions must be followed to avoid damage to the PRAESENSA devices and associated
equipment. FACP operation and reliability depend upon proper installation.
FCC Warning
WARNING
: This equipment generates, uses, and can radiate radio frequency energy and if not
installed and used in accordance with the instruction manual may cause interference to radio
communications. It has been tested and found to comply with the limits for class A computing
devices pursuant to Subpart B of Part 15 of FCC Rules, which is designed to provide
reasonable protection against such interference when devices are operated in a commercial
environment. Operation of this equipment in a residential area is likely to cause interference,
in which case the user will be required to correct the interference at his or her own expense.
Canadian Requirements
This digital apparatus does not exceed the Class A limits for radiation noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department of
Communications.
