Selection Guide

RS232 na RS422/485
Model	Input Interface	Input Connector	Output Interface	Output Connector	Operating Distance	Data Rate (Kbps)	Optoisolation	Power (VDC)
STD1918	RS232	DB9 male	RS422/485	terminal block	0-1200m @24AWG	0-460.8		12~48
ATC-106	RS232	DB9 female	RS485	DB-9 male or a terminal block	0-1200m @24AWG	0-115.2		from RS232
ATC-105	RS232	DB9 female	RS422/485	terminal block	0-5 km	9.6-115.2		from RS232 or external power supply connecting at RS-422/485 side
ATC-107	RS232	DB25 female	RS422/485	terminal block	0-3.5km	4.8-38.4		from RS232 or external power supply connecting at RS-422/485 side
ATC-107N	RS232	RJ-45 connector with DB9 female cable	RS422/485	DB9 male or terminal block	0-5km	0.6-115.2	Note 1	external power supply
ATC-108	RS232	DB9 female	RS422/485	DB-9 male or terminal block	0-5km	0.6-115.2	Note 2	external power supply: 9VDC
ATC-108N	RS232	RJ-45 connector with DB9 female cable	RS422/485	DB9 male or terminal block	0-5km	0.6-115.2	Note 1	external power supply
I-7520	RS232	DB9 female	RS485	terminal block	1200m	0-115.2	Note 3	10~30
I-7520A	RS232	DB9 female	RS422/485	terminal block	1200m	0-115.2	Note 3	10~30
I-7520AR	RS232	DB9 female	RS422/485	terminal block	1200m	0-115.2	Note 4	10~30
I-7520R	RS232	DB9 female	RS485	terminal block	1200m	0-115.2	Note 5	10~30
Note 1: 1000W lightning protection on each line
Note 2: 600W lightning protection on RS422/485 side
Note 3: Isolation Protection 3kV on RS-232
Note 4: Three way isolation: RS232 - RS422/485 - power
Note 5: Isolation voltage: 3000Vdc at RS-485 side

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