Black Box ME890A-R2 network extender Network repeater

Extend async RS-232 data and control leads beyond the 50 ft limitation over CAT6 at data rates up to 250 kbps and reach distances up to 4000 ft.

These CATx Line Drivers enable the user to place a receiving device up to 4000 feet away from the sending device. The local unit has a DB9 female connector and is configured as a DCE device; the remote unit has a DB9 male connector and is configured as a DTE device. This allows the local/remote pair to function as a long extension cable between two RS-232 devices. There are no user-configurable settings. These units pass TXD, RXD, RTS, and CTS signals to allow application to use hardware handshake signals if neccessary.

 

• Signals include RD, TD, RTS, CTS, GND, plus DTR (or DSR) asserted
• Local and remote units can be up to 4000 feet (1250 m) apart
• Fixed DCE local and DTE remote
• Operates point-to-point in full-duplex mode
• Provides 1000-VDC isolation between RS-232 interface and RS-485 interface
• Requires one external power supply (included) at each end
• Supports data pair plus one control pair, and asserts one additional control line