Interfacing communication network to IBM system/360 and system/370 host processors
John T. M. Pryke, Lawrence J. Munini · 1974
Before discussing interfaces per se, it seems wise to review briefly the existing IBM communications environment. As shown in Figure 1, there are four basic types of hardware components. These are remote terminal devices, which may consist of high-speed RJE stations; low-speed time sharing terminals, (CRT or hardcopy); remote CPU's; and a variety of other specialized remote devices (credit card readers, etc.).