Sharp CE-515P - Page 18

2. RS-232C Interface
(1) Specifications
Communication mode: Start-stop synchronous (asynchronous) mode
Standard: EIA RS-232C
Baud rate: 1200 bps
Data: 7/8 bits (switched by the SW1 DIP switch)
Parity bit: None parity
Stop bit: When data is in 7 bits; 2 stop bits
When data is in 8 bits; 1 stop bit
(2) Input connector
(3} Connector
signals and descriptions
Pin number Name Direction Description
1 +12V -
2 BUSY Output Busy signal
3 SIGNAL GND - Signal Ground
4 DATA Input Data signal
(4) Electrical Signal conditions
Name Composition
ritsyv
i =/SW5 SN75154 or the equivalent
Input DATA g
O
SN75150 or the equivalent
BUSY o : ( I
Output
+12v
+12V 4.7K