Tandem Computers Inc has announced the SNAXLINK communications subsystem, a direct channel attach unit providing high-speed communication between Tandem and IBM systems. SNAXLINK, which is designed for use in the IBM Systems Network Architecture environment, replaces communications lines with a high-speed fibre-optic link attached to the I/O channel of an IBM or IBM-compatible system. According to Tandem, channel attachment allows full duplex data transfer up to one million bits per second, compared to the19,200 bps or 56,000 bps rates common to communications lines. The subsystem does not require a front-end communications processor or the large number of cables that are typically associated with multiple communications lines. It also uses standard SNA interfaces, so application programs do not have to be modified. SNAXLINK serves as a communication path between SNAX, Tandem’s SNA access software, and IBM’s VTAM Virtual Telecommunications Access Method. The components that make up the SNAXLINK communications subsystems include a communications interface unit which attaches to a Tandem system’s input-output channel, a standard rack-mountable channel attachment unit that attaches to an IBM system’s channel, and a high-speed fibre optic connection that links the two units. The fibre optic link allows systems to be physically separated by up to 500 meters. SNAXLINK will be available in the fourth quarter of 1987 for use in IBM and IBM-compatible system environments certified by Tandem. The subsystem costs $49,550 for a single unit or $79,676 when you buy two units. The monthly licence fee for software is $125 per unit, and basic monthly maintenance charge is $88 for one unit.
