Ferrite Beads; Alarm Current - Simplex 4100ES Installation Manual

Fire alarm system
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• ES-PS is 12.5 A with fan.
• All visible appliances wired from an EPS are synchronized to appliances on SPS, XPS, TPS, 4009A, 4009T and other EPS within the
system. Appliances wired from TrueAlert Adapter (4905-9816) are not synchronized to other system appliances.
22.7.2.3 IDNAC Speaker Wiring Application Guidelines
Note: TrueAlert ES speaker appliances supervise connected audio circuits for open-circuit conditions and report those troubles to the
host FACU through the EPS. They can also detect short circuit conditions, but the EPS reports such events as an open circuit. The panel
reports these conditions as AUDIO WIRING TROUBLE. The amplifier electronics and power supply of a connected audio NAC must still
supervise that circuit for short circuit conditions and earth faults.
Do not mix TrueAlert ES speakers with conventional speakers on an audio NAC.
IDNAC wire length limitations dictate the maximum audio NAC wire run length between a TrueAlert ES speaker and the connected 4100ES
amplifier. The maximum IDNAC wire run length from the EPS to a device, with a Repeater extension is 8,000 feet. Because the maximum
distance between the amplifier and the EPS is 2500 feet over RUI/RUI+, the total allowable distance between the amplifier and the
TrueAlert ES device speaker is 10,500 feet. This distance may be further restricted by the Speaker Circuit Wiring Distance Tables of the
connected amplifier.
CLASS B Audio Wiring: Connect a maximum of 127 IDNAC speakers to Class B wired audio NAC. A Class B wired audio NAC connected to
TrueAlert ES speakers can employ T-Tap and Wire Branch wiring topologies.
Do not connect an End-Of-Line Resistor to a class B wired audio NAC connected to TrueAlert ES speakers.
CLASS A Audio Wiring: Connect a maximum of 70 TrueAlert ES speakers to a Class A audio NAC. Speakers must be wired in a standard
Class A loop fashion.
Except as noted above, audio NAC wiring connected to TrueAlert ES speakers must follow the requirements of the connected 4100ES
amplifier.

22.7.2.4 Ferrite Beads

Ferrite beads must be used for Class B wiring.
1.
Install the ferrite bead close to the EPS field wiring terminals for lowest radiated emissions (before the wires leave the box).
2.
Loop the wires through the bead as shown.
22.7.3
EPS Wiring Tables
22.7.3.1 Class B Wiring Tables
Use the following tables to calculate the load.
TrueAlert ES Speakers and Speaker/Visible appliances must use Table 41 in place of Table 39.
Maximum wiring distance is the shorter of the distance limits as calculated by alarm current voltage drop or by reaching the
communications distance limit.

Alarm Current

Distance to the Last Appliance
20 AWG
0.050
4000 ft
0.100
2644 ft
0.150
1763 ft
0.200
1322 ft
0.250
1058 ft
0.300
881 ft
0.350
755 ft
page 194
Figure 117: Ferrite Bead Installation
Table 38: UTP Wiring Limit Based on Alarm Current
18 AWG
16 AWG
4000 ft
4000 ft
4000 ft
4000 ft
2802 ft
4000 ft
2102 ft
3342
1681 ft
2674 ft
1401 ft
2228 ft
1201 ft
1910 ft
4100ES Fire Alarm System Installation Guide
14 AWG
12 AWG
4000 ft
4000 ft
4000 ft
4000 ft
4000 ft
4000 ft
4000 ft
4000 ft
4000 ft
4000 ft
3542 ft
4000 ft
3036 ft
4000 ft
574-848
Rev. BQ

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