The BA35X-HH PSU 180W 1A M X.25 LAPB link-level software is a software/firmware package - consisting of basic X.25 LAPB link-level firmware, a firmware loader, a device driver for a KMV1A M Q-bus communication controller, a demonstration test - program, a trace dump module, and a trace interpreter. This package allows the BA35X-HH PSU 180W 11M, RSX 11M PLUS, or RSX 11S operating- - - - - system user to perform high-Speed, synchronous communications in a point- to-point environment. BA35X-HH PSU 180W 13.43 e The BA35X-HH PSU 180W M HDLC framing software is a package of basic HDLC/SDLC - framing firmware; a firmware loader; and an RSX 11M, RSX 11M PLUS, or - - - RSX 11S device driver for the KMV 1A M programmable communications con- - - troller. The driver, in conjunction with the BA35X-HH PSU 180W /SDLC framing firmware, loader, and the BA35X-HH PSU 180W M hardware, allows the RSX 11M, RSX 11M PLUS, or - - - - BA35X-HH PSU 180W 11S Operating-System user to perform medium-speed, synchronous com- - munication in a point-to-point or multipoint environment. The driver provides the interface for transfer of command, control, and data information to and from BA35X-HH PSU 180W 11M, RSX 11M PLUS, or RSX 11S, the KMV1A M basic HDLC/ - - - - - BA35X-HH PSU 180W framing firmware, and remote-end communications line. The BA35X-HH PSU 180W 1A M driver is full-duplex and maintains internal queues, enabling - the supplied firmware to control two receive and two transmit buffers at the same time, allowing for the most efficient use of the device during transmission and reception of data. BA35X-HH PSU 180W 14.22