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Spec sheet lcd-240 display, Rs-232c parameters, Pin functions – Light Engineered Displays LCD-240 Alpha/Numeric Display User Manual

Page 2: Power input

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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