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IDNAC SLC Operation Advantage 

 

TrueAlert V/O Appliances with Addressable 
Amber Strobes on IDNAC SLCs

 provide visible 

notification using a single two-wire circuit that also 

confirms connection to the individual notification 
appliance’s electronic circuit

. This operation increases 

circuit supervision integrity by providing supervision that 
extends beyond the appliance wiring connections.

 

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 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. 

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.) 

Multi-Candela Addressable Strobe with Amber Lens 

Model 

Description 

Dimensions 

4906-9207 

Multi-Candela Addressable Ceiling Mount Strobe, white with red “ALERT” 

lettering with amber lens; intensity selectable as: 15, 30, 75, or 110 

candela 

4 ¾” x 2 

5

16

” x 2 

” D 

(121 mm x 75 mm x 67 mm) 

V/O Adapter and Wire Guard  

Model 

Description 

Dimensions 

4905-9910 

Surface Mount Adapter Plate, zinc plated; 

required for ceiling surface 

mount boxes

 

” x 3 

” (124 mm x 79 mm) 

4905-9926*  Ceiling Mount red wire guard with mounting plate, compatible with 

semi-flush or surface mounted boxes (see diagram on page 3) 

” x 4 

” x 2 

” 

(156 mm x 111 mm x 73 mm) 

* UL listed by Space Age Electronics Inc. 

 

S4906-0007-7  8/2014

Service Port 

Page 1

REPORT 5 : TrueAlert Device Report 

12:34:56am  MON  11-Aug-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 

A/V

110 

T14-1-3 

Boiler Room Fire 

A/V

75 

T14-1-4 

Boiler Room Alert 

AMB

75 

 Product Selection 

 TrueAlert Device Reports Reference 

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