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IDNAC SLC Operation Advantage (Cont’d) 

 

Reduced current allows efficient IDNAC SLC 
operation.

 With 

IDNAC SLCs

, a 

constant

 29 VRMS 

source voltage is maintained, even during battery standby, 
allowing strobes to operate at higher voltage with lower 
current and ensuring a consistent current draw and voltage 
drop margin under both primary power and secondary 
battery standby. Efficiencies include wiring distances up to 
2 to 3 times farther than with conventional notification, or 
support for more appliances per IDNAC SLC, or use of 
smaller gauge wiring, or combinations of these benefits, all 
providing installation and maintenance savings with high 
assurance that appliances that operate during normal system 
testing will operate during worst case alarm conditions. 

Reducing Installation and Testing Time.

 With 

separate controls on the same two-wire SLC, installation 
time and expense for both retrofit and new construction can 
be significantly reduced. When Class B wiring is used, 

wiring can be “T” tapped

, allowing more savings in 

distance, wire, conduit (size and utilization), and overall 
installation efficiency. Use of the magnet test feature 
improves installation efficiency. TrueAlert device reports 
conveniently identify information about each connected 
appliance. 

 

TrueAlert Addressable Wiring Isolator  

 

Isolator Model

 

4905-9929 

is available for remote 

mounting on TrueAlert addressable circuits to isolate short 
circuited wiring from functioning wiring. (Refer to data 
sheet S4905-0001 for additional information.) 

TrueAlert Addressable Diagnostics 

 

Test Features.

 Controllers can be selected to pulse each 

appliance’s LED when it receives a supervision poll. When 
the controller is selected for diagnostic mode, the appliance 
magnet test feature provides a response at the individual 
appliance being tested.  

Silent Appliance Magnet Test.

 In this test mode, in 

response to the magnet test, the appliance LED pulses 
sequentially to conveniently indicate the appliance’s address.  

Operational Appliance Testing.

 In this test mode, after 

the address is indicated by pulsing the appliance LED, the 
strobe will briefly flash to indicate proper operation. 

TrueStart Instrument Two (TSIT).

 The 2nd generation 

of the Simplex TrueStart Test Instrument adds testing of 
IDNAC SLC wiring and TrueAlert (and TrueAlert ES) 
appliances to its ability to test IDCs, NACs, and IDNet 
communications 

before

 

connection to the control panel

Please contact your local Simplex representative for 
additional information. 

Service Port 

Page 1

REPORT 5 : TrueAlert Device Report 

12:34:56am  MON  19-May-14

 
POINT ID 

 
CUSTOM LABEL 

DEVICE

TYPE

 

CANDELA 

T14-1-1 

Location Label . . . up to 40 characters

V/O

15 

T14-1-2 

Break Room 5 

S/V

110 

T14-1-3 Boiler 

Room 

S/V

75 

T14-1-4 

Elec. Room 7 

S/V

30 

 

S4906-0006-7  5/2014

Multi-Candela Addressable S/Vs 

Model 

Lettering 

Listings 

Housing Color Mounting Dimensions 

Description 

4906-9251 White 

FIRE 

UL & ULC 

Red 

Wall 

7 ¼” H x 5” W x 2 

” D  

(184 mm x 127 mm x 67 mm) 

Multi-Tapped 
Speaker with 
Multi-Candela 
Addressable Strobe; 
intensity selectable 
as: 15, 30, 75, or 110 
candela 

4906-9253 Red 

FIRE 

White 

4906-9254 Red 

FIRE 

UL 

White Ceiling 

7 ½” (191 mm) diameter speaker 
housing, ½” (13 mm) deep; lens extends 

” (67 mm) above housing;  

extension into box = 2 ¾” (70 mm) 

4906-9255 Blank 

4906-9256 Red 

ALERT 

4906-9257 Red 

FIRE 

ULC 

Wall Mount S/V Adapters, Replacement Covers, Wire Guard; Ceiling Mount Tile Bridge 

Model 

Description 

Dimensions 

4905-9946  Surface Mount Red Adapter Skirt   Required when mounting to surface 

mounted electrical box, 4” square, 1 ½” 
deep with 1 ½” deep extension 

7 ¾” H x 5 

” W x 3 

3

16

” D 

(197 mm x 137 mm x 81 mm) 

depth with S/V = 5 

” (149 mm) 

4905-9947  Surface Mount White Adapter Skirt  

4905-9903 

Adapter Plate, red, required to mount S/V on 2975-9145 mounting box  
(typically for retrofit) 

5

16

" H x 5 ¾" W x 0.060” Thick 

(211 mm x 146 mm x 1.5 mm) 

2975-9145 

Mounting Box, red, for surface or flush mount, requires adapter plate 4905-9903 
(this box may be available for retrofit applications) 

" H x 5 

" W x 2 ¾" D 

(200 mm x 130 mm x 70 mm) 

4905-9996  Red Wall Mount S/V Replacement Cover with white “FIRE” lettering 

7 ¼” H x 5” W x 1 

” D 

(184 mm x 127 mm x 35 mm) 

4905-9997  White Wall Mount S/V Replacement Cover with red “FIRE” lettering 

4905-9998 

Red Wire Guard for Wall Mount S/V; with mounting plate, compatible with surface 
and semi-flush boxes (UL listed by Space Age Electronics Inc.) 

” H x 6 

1

16

” W x 3 ¼” D 

(213 mm x 154 mm x 79 mm) 

2905-9946  Tile Bridge for Ceiling Mount S/Vs 

See diagram on page 3 

 Product Selection 

 TrueAlert Device Reports Reference 

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