ECL-CN550 RS232-RS485 SERIAL CONVERTER

Description

Convert serial RS232 to compatible signals for use by POS and other equipment.

Typical Pin/Signal Assignments*

RS232 signal	RS485 signal	DB-9	DB-25	RJ-50
Carrier Detect (DCD)	Common Ground	1	8	10
Received Data (RD)	Clear To Send + (CTS+)	2	3	9
Transmitted Data (TD)	Ready To Send + (RTS+)	3	2	8
Data Terminal Ready (DTR)	Received Data + (RxD+)	4	20	7
Common Ground	Received Data – (RxD-)	5	7	6
Data Set Ready (DSR)	Clear To Send – (CTS-)	6	6	5
Request To Send (RTS)	Ready To Send – (RTS-)	7	4	4
Clear To Send (CTS)	Transmitted Data + (TxD+)	8	5	3
Ring Indicator (RI)	Transmitted Data – (TxD-)	9	22	2