| CN DHP2000 |
Canadian National |
| CSX Talker |
CSX |
| Devtronics 68178 |
CSX, Seaboard System |
| Devtronics 68278 |
CSX |
| Devtronics CMA02 |
CSX, Florida East Coast, Illinois Central, Norfolk Southern, RF&P |
| Devtronics MA-1 |
CSX, Santa Fe |
| Devtronics MT-2 |
Grand Trunk Western |
| Devtronics SCAT |
Conrail, CSX, Norfolk Southern |
| Devtronics TSA3000 |
CSX |
| Devtronics UT-1 |
Burlington Northern, CSX |
| Ensun Overlay System |
Kansas City Southern, Norfolk & Western, Norfolk Southern, Union Pacific |
| Harmon Cyberscan 2000 |
BNSF, Burlington Northern, Conrail, CSX, Delaware & Hudson, Norfolk Southern, Providence & Worcester, Saginaw Bay Southern, Santa Fe, Union Pacific |
| Harmon Mini Talker-2 |
Conrail, Monongahela |
| Harmon Model 24 |
Chessie System, CSX |
| Harmon Model 32 |
Amtrak, BC Rail, BNSF, Chicago & North Western, CSX, Delaware & Hudson, Santa Fe, Union Pacific |
| Harmon Model 46 |
Alaska, BNSF, Boston & Maine, Caltrain, Central Oregon & Pacific, Delaware & Hudson, Metrolink (SCAX), NYS&W, Portland & Western, Santa Fe, Southern Pacific, Union Pacific |
| Harmon Model 75 |
Canadian National, Canadian Pacific, CB&CNS, Chessie System, Conrail, CSX, Elgin Joliet & Eastern, Goderich-Exeter, Grand Trunk Western, I&M Rail Link, Indiana & Ohio, Iowa Chicago & Eastern, Monongahela, Norfolk Southern, Soo Line, Southern Pacific, Union Pacific |
| MicroHBD CPU 1 |
Canadian Pacific, Chicago Fort Wayne & Eastern, Delaware & Hudson, Norfolk Southern |
| MicroHBD CPU 3 |
Amtrak, BNSF, Canadian National, Canadian Pacific Kansas City, Chicago Fort Wayne & Eastern, CSX, Delmarva Central, Eastern Maine, Evansville Western, Florida East Coast, GO Transit (Metrolinx), Goderich-Exeter, Guilford, Illinois & Midland, Indiana & Ohio, Kansas City Southern, Lake Superior & Ishpeming, Louisville & Indiana, MBTA, Metrolink (SCAX), Missouri & Northern Arkansas, Montana Rail Link, New Brunswick Southern, Norfolk Southern, Ontario Northland, Paducah & Louisville, Pan Am, Providence & Worcester, So. Cal. Railway Museum, SunRail (CFRC), Tri-Rail (SFRTA), Union Pacific, VIA Rail |
| MicroTalker CPU 1 |
BNSF, Boston & Maine, Central Oregon & Pacific, CSX, Delaware & Hudson, Metrolink (SCAX), Wheeling & Lake Erie |
| MicroTalker CPU 3 |
Amtrak, Austin Western, BNSF, CSX, Florida East Coast, Kansas City Southern, MBTA, Montana Rail Link, Norfolk Southern, Pan Am, Portland & Western, Providence & Worcester |
| Parker DED 1GG |
Conrail, Norfolk Southern |
| Servo 9000 |
Alaska, Canadian Atlantic, Canadian Pacific, Chessie System, Chicago Central & Pacific, Conrail, CSX, Duluth Missabe & Iron Range, Monongahela, Norfolk Southern, Ontario Northland, Ottawa Valley, Providence & Worcester, Santa Fe, Southern Pacific, Union Pacific |
| Servo 9909 |
Chessie System, CSX |
| Servo Servotalk (Analog) |
Burlington Northern |
| Servo Servotalk (Digital) |
Pittsburgh & Lake Erie |
| Spirit Solutions MidNight Ridir |
Norfolk Southern |
| STC iCUBE |
Alameda Corridor (ATAX), Metro-North, NYS&W, Union Pacific, Vermont Rail System |
| STC Sentry 2058 |
Alaska, Bessemer & Lake Erie, Boston & Maine, Central Oregon & Pacific, Chicago Fort Wayne & Eastern, Elgin Joliet & Eastern, Guilford, Kansas City Southern, MBTA, Metrolink (SCAX), Missouri & Northern Arkansas, Norfolk Southern, Pan Am, Southern, Southern Pacific, Union Pacific, Wisconsin Central |
| STC Sentry 2100 |
BNSF, Burlington Northern, Canadian National, Coaster (NCTC), CSX, New England Central, Tri-Rail (SFRTA) |
| STC Small Talk |
BNSF, Conrail, Delmarva Central, Norfolk Southern |
| STC SmartScan IS |
Union Pacific |
| STC SmartScan NG |
Alaska, Amtrak, Arkansas & Missouri, Canadian Pacific, Columbus & Ohio River, CSX, Elgin Joliet & Eastern, Grand Elk, Guilford, Indiana & Ohio, Iowa Interstate, Lake State, Lake Superior & Ishpeming, Mass Coastal, Metro-North, New Jersey Transit, Norfolk Southern, NYS&W, Ottawa Valley, Portland & Western, South Shore Line (NICTD), St. Lawrence & Atlantic, Wheeling & Lake Erie, WNY&P |
| STC SmartScan NG² |
Buffalo & Pittsburgh, Canadian Pacific, Canadian Pacific Kansas City, Central Oregon & Pacific, CSX, Mass Coastal, Norfolk Southern, Rochester & Southern, South Shore Line (NICTD), Union Pacific |
| Unknown |
Missouri Pacific, Oklahoma Kansas & Texas |
| Voestalpine Phoenix MB |
CSX |
| Voestalpine Zentrak WILD |
CSX |
| Wabtec RailBAM |
CSX, Norfolk Southern |
| Zukinut ZEPIC-DE |
Metrolink (SCAX) |