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• Isolated RS485/RS422 on terminal block.
• LED Indication for Transmit,
• RS232 with DB9 Female connector Receive signal communication traffic.
• Auto direction control for RS485-2W transmission.
• Input power supply range 9 to 26.4 VDC
• Galvanic Isolation of 1500V for RS485/RS422.
• 2M enclosure with DIN Rail mounting.
• Supports Baud rate up to 230Kbps.
• Internal 15 kV ESD protection both RS232 and RS485/RS422

Cat. No.	28B21A0
Parameters
RS232 Port
Connector	D type 9 pin Female
Serial line protection	Internal 15 kV ESD
Isolated RS485/RS422 Port
No. of Ports	1
RS422	TX+, TX-, RX+, RX
RS485	D+, D-
Serial line Protection	15kV ESD
Serial Communication Parameter
Isolation	1500 V Galvanic
Parity	None, Even, Odd, Space, Mark
Data Bits	5,6,7,8
Stop Bits	1,1,5,2
Flow Control	None, XON/XOFF,
Speed	300 bps to 230 Kbps
LED Indication	TX, RX LED indication
Input Supply Voltage	9.4 - 26.4 VDC
Power Consumption	1W
Operating Temperature	0O C to + 60O C
Storage Temperature	-25O C to + 70O C
Humidity	95% (Rh)
Enclosure	Flame Retardant UL 94-V0
Dimension (W x H x D) (in mm)	36 X 90 X 52.3
Weight (unpacked) Approx.	100 g
Mounting	Base / DIN rail
Degree of Protection	IP 20 for Terminals, IP 40 for Enclosure
Certification
Function and Application	This converter allows to interface any device using RS232 serial link to RS485/RS422
	link. The RS485 specification allows to network up to 32 Notes on the same lines, at speeds up to 10
	Mbps to distances of 4,000 feet (1200 meters). RS485/RS422 links are much used in industrial process
	control where reliability is important.

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