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LCD-240 DISPAY
SPEC SHEET
Graphic Annunciators * Water Leak Detection
Fireman’s Smoke Control Panels * ARA Systems
109 Portwatch Way Wilmington, N.C. 28412 Phone: (800) 251-2512 Fax: (800) 251-9878
Internet: www.ledinc.com Email: sales@ledinc.com
Technical Specifications
1. Standby Voltage: 12 to 24 vdc
2. Standby Current: 125 ma
3. Baud Rate: 9600
4. Bits: 8
5. Stop Bit: 1
6. Parity: 0
LCD
SERIES
7. Temperature: 32° to 100° F
8. Humidity: Non-condensing
General Description
The model LCD-240 is a backlighted display designed for use on a fire alarm
system printer port. It features 2 lines of type at 40 characters each. A scroll
button allows the user to view up to six previous messages.
The faceplate is aluminum with a black finish and white nomenclature (shown
above). A terminal block is provided for connections to the Fire Alarm Control
Panel
The system can be configured to operate on RS-232 or 485 serial output. The
unit is designed primarily to display the same data as a standard printer.
The unit is compact (1.5”H x 7.5”W x 2”D) and can be embedded in a graphic
map, or can be installed in a standard four-gang box. Please consult the factory for custom applications.
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LCD
SERIES
Pin 6 Pin 1
LCD-240 DISPLAY
SPEC SHEET
FenwalNET or
PEGAsys Motherboard
Front View
RS-232-C Printer Port
PC Port
RS-232C Parameters
9600 Baud
8 Data Bits
1 Stop Bit
No Parity
Pin Functions
1 = Transmit (TXD)
2 = Signal Ground (GND)
3 = Request to Send (RTS)
4 = Clear to Send (CTS)
5 = No Connection (NC)
6 = Receive (RXD)
J1
C1
R1
TX 1.
– SG 2.
+ CTS 4.
R2
U1
C2
JUMP
CCM
RTS 3.
NC 5.
RX 6.
R3
BACK
C3
LIGHT
C10
+
RS485
RS232
R4
GND
+24V
C11
U3
485
485
485
232
232
232
J2 J3 J4 J5 J6 J7 J8 J9
GND +24v
1 2 3 4 5
P1
TERM
TERM
LED INC. Wilmington NC
LCD-240 REV B 05/00
R5
R6
R7
C12 C13
R8
R9
80-C
SLNC
WRAP
RST
40-C
NORM
P2
RS232
GND DTR RXD
RS485
* For RS-485 Operation move Jumpers J2, J3 & J4
to the RS-485 position and connect TX+ and TXto data converter as shown.
C9
C5
C6
C7
C8
U2
S1
NC
C4
NO
D1
RS232 RS485
GND
DTR
RXD
RX-
RX
Inter-Connections For RS-232 Operation
8 to 12 volts
X1
RX- RX+
S2
NC
NO
R11
Power Input
12 – 24 VDC
D2
U5
R10
B1
Q1
LCD-240
RXD (5)
GND (3)
DTR (4)
+
(2)
-
(1)
C15
U4
BUZZER
J10
C14
J11
C16
CONTRAST
JP1
R12
OFF ON
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