Simplex 4100ES - EPS Class B IDNAC Wiring

8-3
Chapter 8 EPS and IDNet 2 Wiring
EPS Class B IDNAC Wiring
Wiring Overview The EPS has three SLCs for power and communication wiring.
Each SLC powers and communicates with up to 127 IDNAC devices. The EPS is wired to
compatible devices and appliances, such as the TrueAlert ES and TrueAlert Addressable lines
(both multi and fixed candela), using Class B circuitry.
Class B wiring allows “T” tapping. EPS wiring is inherently supervised due to individual
device level communications. End-of-line resistors are not required.
IDNAC Wiring
Guidelines
Review the following guidelines for IDNACs before you begin the field wiring.
• Only IDNAC and other compatible devices are allowed on the SLCs.
• Maximum of 127 devices or 139 unit loads per channel. The maximum number of visuals
that can be synchronized on one circuit is 127.
• Maximum of six isolators between any appliance and SLC terminals. Maximum 12
isolators per SLC.
• Maximum 30 devices connected directly to any isolator terminal pair.
• The required wire is UTP (Unshielded Twisted Pair). This wiring must have a capacitive
rating of less than 60 pF/ft and a minimum 3 twists (turns) per foot.
• All wiring is 18 AWG to 12 AWG.
• All wiring is supervised and power-limited.
• The maximum alarm current is 3 A per circuit.
• Maximum cable load is 10,000 feet (3,048 m) per channel. Maximum wire length from
panel to any device is 2,500 feet (762 m).
• The nominal voltage rating is 29 VDC.
• The total available current from the EPS is 9 A.
• 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.
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 FACP 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.
Continued on next page