*** DISCONTINUED *** This product is discontinued. Contact Westward Sales to discuss an alternative option.
The RS-485 interface is wonderful. Devices with this interface support high speeds and very long distances, and they communicate very reliably. There’s just one problem: This interface isn't native to PCs or to most of today’s office equipment. If you want a modular, inexpensive, compact, and powerful solution to this dilemma, look no further. The IC620A-F Async RS-232 Interface Converter is designed to plug directly into the RS-232 serial ports of PCs and other devices, effectively turning that port into an RS-485 port. It doesn't require AC power or batteries; it operates using just the small voltage present on the RS-232 data and control leads.
The IC620A-F is designed to translate between RS-232 and 2 or 4 wire RS-485. The IC620A-F supports data rates up to 115,200 bps and non-RS-232 distances up to 9 miles, but this distance will depend on the data rate and the type of cable you’re using. This models can support as many as 31 RS-485 drops. It has DB9 RS-232 connectors and is always DCE.
Technology | |
Category | Serial Connectivity |
Protocol | Asynchronous |
Transmission Distance | Between RS-232 device and converter: 50 ft. (15.2 m), but converters not directly attached will be under-powered; between non-RS-232 device and converter: 9 mi. (14.4 km) |
Serial Interface | |
Baud Rate | Transparent to 115.2 kbps |
Flow Control | To devices: RS-232: Pinned according to TIA-574 on DB9, DCE; To line: 2- or 4-wire RS-485 |
Signals | Raise DSR in response to DTR; raise CD in response to carrier; raise CTS in response to RTS (after no delay or 8-ms delay, user-selectable); carrier is either constantly on or controlled by RTS, user-selectable |
Interfaces | |
Serial | Unconditioned twisted pair between converters: 2 or 4 wires (1 or 2 pairs) |
User Controls | 2 internal 4-position DIP switches for configuration |
Power | |
Surge Protection | Internal Silicon Avalance Diodes dissipate surges up to 600 watts per wire within 1 ms |
Mechanical | |
Enclosure | ABS plastic |
Ratings | |
Operating Temperature | 32 to 122° F (0 to 50° C) |
Humidity | 5 to 95% noncondensing |
Download Name | File Size |
Black Box RS-232 Interface Converter Datasheet | 63.23KB |
Black Box RS-232/485 Interface Converter Manual | 147.36KB |
Black Box IC620A-F Application Diagram | 14.92KB |