AIM-3
Manual
P83667
C
Rev. C July 2003
Sheet 4 of 12
Wiring Guidelines:
Although the AIM-3 incorporates signal verification and noise filtering circuitry on its input, induced voltages or “noise” on the input
wiring can cause improper operation. Therefore, use shielded twisted pair wire for all file input wiring. The audio output lines (and
the auxiliary music input lines) should also be wired with shielded twisted pairs to minimize noise pick-up. For all other connections,
twisted pairs are recommended so as to reject common mode noise, shielding is optional.
The shield of each cable should be connected only at one end. Each shield of each cable that connects to the AIM-3 is to connect to
the grounding points provided near the right edge of the chassis (see Figure 2).
WARNING: ALL AIM-3 WIRING SHOULD BE ROUTED AWAY FROM ANY HIGH VOLTAGE OR HIGH
CURRENT LINES (SUCH AS AC OR DC POWER LINE, AUDIO POWER LINES, AND MOTOR OR RELAY
ACTUATION LINES) AND SHOULD BE INSTALLED IN SEPARATE CONDUIT FROM HIGH VOLTAGE OR HIGH
CURRENT LINES. FAILURE TO DO SO MAY CAUSE ELECTRICAL SHOCK WHICH CAN RESULT IN PROPERTY
DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
The National Electrical Code defines two types of circuits for protective signaling systems: power limited circuits and non-power
limited circuits. All AIM-3 circuits have been designed as power limited circuits. Therefore, in order to maintain power limited
ratings, circuits connected to the power supply, auxiliary source input, and relay contact terminals of the AIM-3 must be powered
limited.
CAUTION:
The National Electric Code limits the maximum number of conductors that can be installed in conduit and wiring
boxes depending on the size of the conduit, the volume of the boxes, and the gauge of the wire used. Make sure that wiring used for
AIM-3 installation complies with the latest NEC requirements for power limited circuits.
Wiring Specifications:
Between each RM and AIM-3
Cable
Size: 14
-
22
AWG
Shielded.
The
shield must be connected only at the SAFEPATH Panel.
Maximum
Length:
1000
Feet
Maximum Capacitance: . 05uF/Total Run (50pF/foot for 1000 FT.)
Mounting:
The AIM-3 shall be mounted in a location within the environmental limits specified in the latest UL Standard for indoor control
panels. The AIM-3 shall not be located in a hazardous location. Refer to the "Technical Specifications'' section.
CAUTION:
In order to comply with the latest NFPA and UL requirements for interconnection of fire alarm control equipment,
the AIM-3 unit must be located in the same room as, and within 20 feet of the SAFEPATH Panel it is connected to.
Refer to Figure 2 for AIM-3 mounting hole layout. Drill mounting holes for appropriate screws and anchors to ensure secure
mounting to the type of surface at the selected location. Keep out dust and dirt during installation. Dust and dirt can interfere with
the operation and reduce the life of the equipment.
Remove the outer cover and mount the Series AIM-3 at the selected location.
Use care to avoid damage to the PC board during
installation
. Do not apply excessive pressure to the PC board or its components, including field wiring terminals and connectors or
damage may occur.
