This website stores cookies on your computer. These cookies are used to collect information about how you interact with our website and allow us to remember you. We use this information in order to improve and customize your browsing experience and for analytics and metrics about our visitors both on this website and other media. To find out more about the cookies we use, see our Privacy Policy.
2025 IT Superhero Awards—Nominate your IT Superheroes by July 7, 2025!

Black Box Async RS232 Extender Fiber DB2

Print page
Item#: 41063985 // MFG Part#: MD940A-F // By: Black Box
Black Box MD940A-F Main Image from Left-angle
Rollover to Zoom
NOTE: Images may not be exact; please check specifications.
  • In Stock
  • Ships in 48 Hours
Ordering Information
$387.95 
Qty:
  • ST multi-mode Connector(s)
Extend Async RS232 data beyond the 50 ft limitation using multimode fiber at data rates up to 76.8 kbps and reach distances of 2.5 mi. (4 km). Autosensing 110–220-VAC power supply ensures reliability and continuous transmission. A range select feature compensates for coupled power variations. Switch-selectable DTE/DCE option. Set to perform like a DTE so it can communicate with another DCE device. No special cables are needed. Support RS-232 async, bidirectional transmission. Use with multimode fiber cable.
10