http://www.dcxsys.com/DCX_PG1.html
2360 Maryland Road
Willow Grove
PA 19090
USA
Phone: 215.830.8520
DCX Systems, Inc. designs, manufactures, and markets telephone-network-based alarm transport networks and terminal equipment. These proprietary data networks, known as DERIVED CHANNEL MULTIPLEX, provide a reliable and secure transmission medium for high grade burglar and fire alarm signals as well as other critical event monitoring messages.