8-7
Chapter 8 EPS and IDNet 2 Wiring
EPS Wiring to Devices
Class B Wiring to
IDNAC Devices
To connect the EPS to appliances using Class B wiring:
1. Route the wire from the “+” and the “-”outputs on the EPS IDNAC terminal blocks (TB1,
TB2 or TB3) to the appropriate inputs on a peripheral notification appliance.
2. Route wire from the first appliance to the next one. “T” tapping is allowed. Repeat for each
appliance.
3. Repeat steps 1 through 3 for each IDNAC output you want to use.
Note: Notification appliances are rated per individual nameplate label. Maintain correct polarity on terminal
connections.
-05
Figure 8-3. Class B Wiring
4009 IDNAC
Repeater
Using a 4009 IDNAC Repeater extends the possible wiring distance and increases the current
capacity of an IDNAC channel. Each IDNAC repeater has a capacity of 3A, and regenerates
the IDNAC signal. Models 4009-9601 (platinum enclosure) and 4009-9602 (red enclosure) are
compatible with the EPS. Refer to installation instructions 579-1019 for wiring details. All
IDNAC devices wired to the IDNAC repeater are synchronized to IDNAC devices wired to
other EPS within the system.
Dual Class A
Isolator (DCAI)
To wire an IDNAC as a Class A circuit, one or more DCAI modules (4100-6103) is required.
Each DCAI includes 2 circuits, Class A, with fault isolation. Refer to 579-1029 for wiring
details and installation instructions. Synchronization of audible/visible devices is maintained
with the use of DCAI.
TrueAlert ES Speakers and Speaker/Visible appliances wired in a Class A circuit must use
Table 8-4 here in place of Table 4 in publication 579-1029 (4100 ES/4007 ES Installation
Instructions; 4100-6103 DCAI Card). The wiring limit distances shown in this table apply to
maximum wiring loop length. The final maximum loop length is the shorter of this value or the
value from Table 8-1.
IDNAC
Device
IDNAC
Device
IDNAC
Device
IDNAC
Device
IDNAC
Device
IDNAC
Device
Ferrite
Bead
+ + - -
+ + - -
+ + - -
IDNAC1 IDNAC2 IDNAC3
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