properties

• Supports baud rate up to 921.6 Kbps
  
• Auto Identify and Switch RS-422 and RS-485 technology makes jumper free
  
• Supports RS-485 Auto RTS Signal Control (ARSC ) technology
  
• Plug-in screw terminal block for easy RS-422/485 wiring
  
• 15KV ESD surge protection for all serial signals
  
• Optional embedded 600W surge protection
  
• Single +5VDC input and low power consumption
  
• Powered by external power adapter or USB port on hosting device

description

SUNIX STD1918 high technology media converter provides serial interface exchange between RS-232 to RS-422/485 and vice-versa. RS-232 hardware is a popular used and easy design interface in today’s industrial environment and commercial application. Because the drawback is that RS-232 is a point to point characteristic and a distance limitation only 15 meters, this converter provides an ideal solution for extending RS-232 transmission distance and increasing networking capability. Users can use RS-232 devices to connect to an industrial RS-422 or RS-485 network and increase transmit data up to 1.2 kilometer by using a differential signal and multi-drop connections.

further informations

Serial Communication

Connector	RS-232 : DB9M  RS-422/485 : Terminal Block
Signal	RS-232 : Rx, Tx, GND, RTS, CTS  RS-422 : Tx+, Tx-, Rx+, Rx-, RTS+, RTS-, CTS+, CTS-  RS-485 : Data+, Data-, RTS+, RTS-, CTS+, CTS-
RS-422 / 485	RS-422/485 Auto Identify & Switch  DTE/DCE
RS-485	Auto RTS Signal Control: ARSCTM
Network	RS-422 up to 10 nodes, 1.2KM  RS-485 up to 32 nodes, 1.2KM
Protection	Standard:  15KV ESD Surge Protection for all signal  Optional:  2.5KV Isolation Protection for all signal  600W Surge Protection for all signal  *Maximum clamping voltage 24.4 V  *Peak pulse current 24.6 A
Baud Rate	RS-232 up to 460.8 Kbps  RS-422 up to 115.2 Kbps  RS-485 up to 460.8 Kbps

Power

Input Power	Self-Power Mode (Power from RS-232 TxD, RTS, DTR Pin)  5 VDC External Power, DC Jack type
Protection	Reverse Power Protection (Protects against V+ & V- reverse)
Power Consumption	< 2.4W=12V x 200mA

LED

LED	Power, RxD for RS-232,TxD for RS-232

Operation Environment

Operating  Temperature	0 ~ 60 °C
Humidity	5 ~ 95% RH
Storage Temperature	-20 ~ 85 °C

Mechanical

Dimensions	189 x 106 x 40 mm (with Mounting Kit)
(WxDxH)	165 x 106 x 32mm
Case	Metallic Casing & Hard Plastic
Weight	250 ± 5 g
Approvals	CE, FCC(Class B)

Available Model

STD1918	RS-232 to RS-422/485 Converter
STD1918S	RS-232 to RS-422/485 Converter with Surge
STD1918I	RS-232 to RS-422/485 Converter with Isolation
STD1918SI	RS-232 to RS-422/485 Converter with Surge & Isolation

Optional Accessories

1. Power Adapter 12V / 1A,
2. Wall Mount Kit
3. DIN-Rail Mount Kit
4. Rubber foot stub / Screw