Arecont Vision Costar announces that COM-TECH Systems, Inc. has joined as a new Authorized Manufacturer?s Representative for the US Southeast region. COM-TECH Systems, Inc. is proven throughout the Carolinas in the sale of structured cabling, data center and audio/visual products, and security technology. It supports customers through three regions, those being Charlotte/Western North Carolina, Raleigh/Eastern North Carolina, and South Carolina.