Black Box Async C 4-Wire - short-haul modem - RS-232 - TAA Compliant

Extender async RS232 devices beyond the 50 ft limitation using CATx cables at data rates up to 115.2 kbps and reach distances of 4000 ft. At a maximum speed of 115.2-kbps you can go up to 4000 feet. It must be used in pairs. RS-232 is the most common serial interface in use today. This means you can use your SHM-C in RS-232 installations- industrial applications security systems UNIX(r) DEC2 and HP(r) workstation connectivity and more. Choose our 4-Wire SHM-C Async to transmit data up to 4 miles (6.4 km). Run loopback tests simply by pressing a front-panel button. Open the flip-top lid for quick DTE/DCE selection. Transformer and optical isolation protect your data from electrical interference.