| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | DS96176 |  344Kb/12P | RS-485/RS-422 Differential Bus Transceiver |
 National Semiconductor ... | DS96176CN |  344Kb/12P | RS-485/RS-422 Differential Bus Transceiver |
 National Semiconductor ... | 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 |