Simplex 4100ES Installation Instructions Manual page 11

Class B Wiring to 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.
- Each IDNAC + and - terminal is rated for two identical wires. This allows up to four Class B T-TAP circuits directly from each IDNAC
terminal block. See Figure 13 .
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 3 A, 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 synchronised 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. Synchronisation 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 UTP Wiring Limit for Speaker and Speaker/Visible Devices
Based on Communication in Figure 12. 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 UTP Wiring Limit Based on Alarm Current in Figure 11.
AUX/NAC Wiring
Calculating Class B wiring with Isolators
When using Isolators, the maximum wire distance of each of these SLC branches from panel to any device is the smaller of the values obtained from
the UTP Wiring Limit Based on Communication table in Figure 11, and the Equation 1. See Figure 11 for the ohms per 1000 ft.
Note: Each IDNac + and - terminal is rated for 2 identical wires. This allows up to 4 Class B T-TAP circuits directly from each IDNac terminal block. See
Figure 15.
Figure 14: Equation 1 Maximum SLC Wire Branch Length Based on Appliance Alarm Current Load
page 11
4100ES Extended Power Supply Installation Instructions
Figure 13: Class B Wiring
579-1015 Rev U