Light Engineered Displays LD Series DIRECTORY ANNUNCIATORS User Manual
Model ld-20 annunciators directory, Buildings
Zone numbers or Custom messages
Field changeable nomenclature
Controls accessable from front
Choice of Standard sizes
Lamp Test - Standard
Plenty of room for wiring
Intended for indoor / dry location
1. Standby Voltage
Nominal 24 Vdc: Min. 18 Vdc to 36 Vdc
2. Standby Current
Typical Range 0 -15 ma
3. Alarm Current
Standby Current is increased Approx. 15
ma for each Activated LED
max input @ 3 Amps
4. Indicators
Super Bright LED’s - Red, Amber and Green
5. Activating Voltage
Positive or Negative as specified
6. Operating Temperature
32-100F (0-38C)
The directory comes standard with white artwork on a dark (smoked) background. The LED indicators, one
(or two) per window, are installed on a separate panel, located behind the artwork and are visible only when
activated. This approach is called “backlighting.” Optional features include the following: Frontlighting, Incand-
escant Lamps, Custom Grids and Custom Colors.
The unit is housed in a sturdy Brushed Aluminum frame and attached to its backbox with a vandal resistant
“hidden” hinge. It has a keyed lock to prevent unauthorized access. Terminal strips (behind locked cover) facili-
tate the wiring of Field Devices. Screw connectors are complete with captive wire protection and are automati-
cally secured against loosening. Fire Alarm Panel driver modules can be mounted inside the annunciator
panel.
The electronic components are permanently installed on circuit boards. Electrical connections from the circuit
board(s) to the LED panel are made with Ribbon connectors. Normal system operation is indicated by the
lighted Green LED (Power On). A Lamp Test switch is also provided. When activated, ALL system indicators
should light as a demonstration that all internal circuits, wiring and LEDs are functioning properly.
The system is modular and can easily be changed.
Features
Technical Specifications
General Description
109 Portwatch Way Wilmington, N.C. 28412 Phone: (800) 251-2512 Fax: (800) 251-9878
Internet: www.ledinc.com Email: [email protected]
Graphic Annunciators * Water Leak Detection
Fireman’s Smoke Control Panels * ARA Systems
LD
SERIES
Model LD-20
ANNUNCIATORS
DIRECTORY
BUILDINGS
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