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The TrueAlert Is module mounts to the 4-inch square grounded metal electrical box via 2 
screws. Box depth is dependent on the number and size of conductors used in a particular 
application. The range extends from a minimum 2 1/8” deep box to a 1 1/2” deep box with a 
minimum 1 1/2” extension ring. 
 

Caution:

   Do not bring conduit through the rear of the electrical box. 

 

1.

 

Tighten mounting screws snugly (do not over-tighten). 

2.

 

For semi-flush mounting, install the box either flush with the wall or with a maximum ¼-
inch recess. 

 
The TrueAlert Is Module uses terminals to connect to each wire point. Each accepts 2 
wires of gauges #12 through #18 AWG. The terminal screws at TB1 accommodate both slotted 
and Philips drive. 
 
Refer to the Field Wiring Diagrams, or applicable installation manuals, for detailed information on 
maximum wire run distance. 
 

FigureTag FD4-769-02  

Grounded Metal Electrical Box,
Electrical box, 4” square (102 mm),
2 1/8” (54 mm) minimum depth,
RACO 232 or equal (by others)

4905-9929 TrueAlert Is Module

4“ Square cover plate,
RACO 752 or equal (by others)

 

 

Note:  

A cover plate (not supplied) is required to complete installation 

 
                          

Figure 4. TrueAlert Is Mounting 

 

 

 
 

 
 

Installation instructions, Continued 

Mounting the 
TrueAlert Is 
Module 

Summary of Contents for TrueAlert Isolator+

Page 1: ... of notification appliances provides addressable control and supervision of individual appliances and circuit wiring Appliances are operated over a single two wire notification appliance circuit TrueAlert Channel that allows T tapping Class B only The TrueAlert Isolator Module provides a means of containing the effects of a short circuit on the TrueAlert Channel to a single segment of wire as well...

Page 2: ...wires under terminals Break wire runs to provide supervision of connections Do not bring conduit through the rear of the electrical box Strip lead insulation to 3 8 maximum 1 At the electrical box connect the contractor wire to the PORT 1 PORT 2 and terminal of the TrueAlert Isolator Module See figure 2 and 3 TrueAlert Isolator Class B and A Wiring 2 Ensure that correct polarity is maintained acro...

Page 3: ...f wire protected by one or more Isolator modules limit the wire resistance to a maximum value of 1 5 ohms for a given line path The wire resistance is measured from the Controller s port to the furthest appliance in the protected segment Deviation from this limitation does not guarantee isolation for short circuits that are located greater than 1 5 ohms Figure 2 TrueAlert Isolator Class B Wiring I...

Page 4: ...wiring connections are supervised and power limited 6 Powering the Isolator Module from an appliance power source less than 17 6 VDC or greater than 32 VDC may cause permanent damage to the module 7 The TrueAlert Isolator Module can be operated through the TrueAlert Addressable Controller the TrueAlert compatible FACP the 4009 IDNAC Repeater or the EPS IDNAC 8 The Isolator Module counts for 4 unit...

Page 5: ... The TrueAlert Isolator Module uses terminals to connect to each wire point Each accepts 2 wires of gauges 12 through 18 AWG The terminal screws at TB1 accommodate both slotted and Philips drive Refer to the Field Wiring Diagrams or applicable installation manuals for detailed information on maximum wire run distance FigureTag FD4 769 02 Grounded Metal Electrical Box Electrical box 4 square 102 mm...

Page 6: ...t Channel 4009 TrueAlert Addressable NAC Controller or TrueAlert compatible FACP only supports address codes 1 through 63 2 DIP switch in 1 position is ON while DIP switch in 0 position is OFF Table 1 TrueAlert Isolator Module DIP Switch Address Chart 0000 1000 0100 1100 0000 0 16 32 48 1000 1 17 33 49 0100 2 18 34 50 1100 3 19 35 51 0010 4 20 36 52 1010 5 21 37 53 0110 6 22 38 54 1110 7 23 39 55 ...

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