Light Engineered Displays LCD-240 Alpha/Numeric Display - Manual (Page 2)

SPEC SHEET
LCD-240 DISPLAY
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)
FenwalNET or
PEGAsys Motherboard
Front View
Pin 6 Pin 1
RS-232-C P
rinter
P
or
t
PC
P
or
t
CCM Inter-Connections For RS-232 Operation LCD-240
TX 1.
– SG 2.
RTS 3.
+ CTS 4.
NC 5.
RX 6.
RXD (5)
GND (3)
DTR (4)
(2)
(1) Power Input +
12 – 24 VDC
-
8 to 12 volts
* For RS-485 Operation move Jumpers J2, J3 & J4
to the RS-485 position and connect TX+ and TX-
to data converter as shown.
C15
U4
R10
D2 U5
C16
C14
J11
Q1
B1 S2
R11
NC
NO
NC
NO
R4
D1
U2
S1
C5
C6
C7
C8
C9
C10
U3
C11
P1
C2
C1
C4
C3
R3
U1
J1
R2 R1
JUMP
RS485
RS232
RS232
RS485
BA
CK
LIGHT
R5
R7
R6
R8
R9
P2 GND +24v
J2 J3 J4 J5 J6 J7 J8 J9
C12 C13
232 232 232
485 485 485
TERM TERM RST
NORM 40-C
SLNC WRAP 80-C
X1
1 2 3 4 5
GND DTR RXD
RX- RX+
LED INC. Wilmington NC
LCD-240 REV B 05/00
CONTRAST
J10
OFF ON
R12
B
UZZER
JP1
RS232 RS485
GND
DTR
RXD RX -
RX+
GND
+24V
LCD
SERIES