For such purposes, printer terminals such as IBM 2741 printer, using the traditional asynchronous serial communication ( start-stop signaling ), and display terminals such as IBM 2260 and IBM 3270, using the new communications protocol set ( Binary Synchronous Communications or BSC ), became available.
32.
In addition, three types of serial communications controllers were available, a synchronous communications adapter, which was capable of emulating the IBM 2780 terminal of the day, however in ASCII, not in EBCDIC, and an asynchronous version of the same was also available, but both were limited to line speeds of no more than 2400 bps, the maximum dial-up rate of the day.
