| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | DS9615 |  178Kb/ 6P | Dual Differential Line Receiver |
| DS9615ME |  178Kb/ 6P | Dual Differential Line Receiver |
| DS9615MJ |  178Kb/ 6P | Dual Differential Line Receiver |
| DS96172 |  209Kb/ 6P | RS-485/RS-422 Quad Differential Line Drivers |
 National Semiconductor ... | DS96172CN |  209Kb/ 6P | RS-485/RS-422 Quad Differential Line Drivers |
 National Semiconductor ... | DS96173 |  173Kb/ 6P | RS-485/RS-422 Quad Differential Line Receivers |
 National Semiconductor ... | DS96173CN |  173Kb/ 6P | RS-485/RS-422 Quad Differential Line Receivers |
 National Semiconductor ... | DS96174 |  209Kb/ 6P | RS-485/RS-422 Quad Differential Line Drivers |
 National Semiconductor ... | DS96174CN |  209Kb/ 6P | RS-485/RS-422 Quad Differential Line Drivers |
 National Semiconductor ... | DS96175CN |  173Kb/ 6P | RS-485/RS-422 Quad Differential Line Receivers |