Light Engineered Displays LD Series DIRECTORY ANNUNCIATORS - Manual (Page 2)

LD
SERIES
ANNUNCIATORS
DIRECTORY
Consult the factory regarding custom sizes, products, options or special requirements.
The contractor shall furnish, where indicated on the plans, a U.L. Listed Directory Annunciator Panel.
Standard features shall include but not be limited to: Built-In Voltage Regulation, Reverse Polarity Protection, Per
Point Diode Isolation and a Lamp Test Switch. Annunciator shall be able to operate from a nominal 24 Volts D.C.
supplied by the Main Fire Alarm Panel. Unit will utilize the Fire Alarm Panel’s standby batteries during loss of
normal power.
The Annunciator shall be (...Back-lit, Front-lit). Unit shall be (...Semi-flushed mounted, Surface mounted).
Assembly shall be of “Dead-Front” construction, with no exposed screws or hinge. Artwork and indicators to be
protected by a sheet of Non-glare Plexiglass, finished with a brushed Aluminum trim. Directory shall provide a
means for field changes of nomenclature.
Upon activation of any Alarm signaling zone, the annunciator shall indicate the zone in alarm. A Sonalert shall
provide an audible indication of a general system trouble condition. Operation of the silence switch will not extin-
guish the alarm indicator. A ring back circuit shall be provided to remind the operator to return the silence switch
to the normal position.
The Annunciator shall be manufactured by Light Engineered Displays, Inc., or approved equal.
Directory sizes are shown below, according to model number. We will work from your blueline, copy, fax or
sketch. Please note: a full size, inked mylar, from your CAD, will speed production. A window grid will be
provided at your request. Standard units without special wording can often be shipped from stock.
Please complete the annunciator Order Form and send with drawing. If Order Form is not available, indicate how
annunciator will be activated and list any specifications required.
Ordering Information
"W"
"H"
4" 7/8"
Backbox Graphic Door
For Semi-flush mounting, add 3” to
overall “W” and “H” dimensions.
MODEL
LD-00
LD-05
LD-10
LD-20
LD-30
WIDTH x HEIGHT
10” x 10”
18” x 9”
23 7/8” x 14”
23 7/8” x 24 1/2”
23 7/8” x 35”
Architect / Engineer Specification
ZONES
10
20
30
52
76