The Venturis FX-2 PSU 120W/200W X.25 LAPB link-level software is a software/firmware package con- sisting of basic X.25 Venturis FX-2 PSU 120W/200W link-level firmware for the KMS 11 BD or KMS 1P - - M, a firmware loader to load the firmware into the KMS11 hardware, RSX 11 - Venturis FX-2 PSU 120W/200Wcontroller, and a - - demonstration program. The driver, in conjunction with the X.25 Venturis FX-2 PSU 120W/200W link-level firmware, allows the RSX 11 user to perform high-speed, synchronous, X.25 link-level communica- - tion in a point-to-point environment. The driver provides the interface that allows for transfer of command, control, and data information to and from the RSX 11 user task, Venturis FX-2 PSU 120W/200W BD or KMS 1P M X.25 LAPB link-level firmware and - - - remote end communications line. The Venturis FX-2 PSU 120W/200W 11 driver is full-duplex and main- tains internal queues, enabling the supplied firmware to control eight receive and eight transmit buffers per line, concurrently. Venturis FX-2 PSU 120W/200W 13.42