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COAX HOST CONSIDERATIONS
The ULTRA can process data from a variety of IBM host systems. This
section discusses how to ensure compatibility between the ULTRA and the
host system.
System Configuration
The coax host software generation requirements of the 6287 ULTRA are
generally the same as the requirements for an IBM 3287 or 3289 printer
with SCS support. Except where stated otherwise, the coax host software
system requirements are the same as for an IBM 3174, 3274 or 3276 control
unit with 3287 or 3289 printers attached.
To function properly, the ULTRA/printer combination must be defined to
the coax host system as a 3287 printer with a 4K maximum physical buffer
and/or with whatever other features are required by the application and are
supported by the ULTRA. The ULTRA does not support 3287-type options
such as Program Symbols.
The ULTRA is classified as a Category A device, and it can be attached
to IBM 4300 systems with integral Display Printer Adapters (DPA) and to
IBM 3174, 3274 and 3276 control units configured with Type A device
adapters. The ULTRA does not emulate a Category B device, and it will not
work if attached to a Type B device adapter.
(Devices such as CRTs and printers that connect to IBM 3270 control units
are classified as either Category A or Category B devices. All new control
units are configured with Type A device adapters. The Category B devices
are those that are supported by IBM 3271 and 3272 control units configured
with Type B device adapters. 3274 control units can also be configured
with Type B device adapters for support of Category B devices.)
Category A Devices Category B Devices
3262 Line Printer 3277 Display Station
3278 Display Station 3284 Character Printer
3279 Color Display Station 3286 Character Printer
3287 Character Printer 3288 Line Printer
3289 Line Printer
SECTION 13