3270S The 3272 control unit can support the following devices: • IBM 3277 Display Station • IBM 3284 Printer • IBM 3286 Printer • IBM 3287 Printer • IBM 3288 Printer
The 3274 control unit, Kodel 1B can support the following devices: • IBM 3277 Display Station • IBM 3278 Display Station • IBM 3284 Printer • IBM 3286 Printer • IBM 3287 Printer • IBM 3288 Printer • IBM 3289 Printer Local Hardware Configurations Supported CONTROL UNITS The following control units are supported wben locally attached on a
byte multiplexer, block multiplexer, or selector channel to support 3270 devices: • IBK 3272 Control Unit Model 2 for attachment of up to 32 3277 Display
Stations Kodel 2, 3284 Printers Kodel 2, 3286 Printers Kodel 2, 3287
Printers, Models 1 and 2, and 3288 Line Printers Kodel 2. To support
this configuration, the following may be required:
--Device Adapter feature (13250) is required if more than four
devices are attached to the 3272. Up to four additional devices
can be attached with each device adapter.
--A 3271/3272 Attachment (18330) is required to attach each 3287
Printer. • IBK 3274 Control Unit Kodel 1B (supported as a 3272) for attachment
of up to 32 display stations and printers. All of the 32 devices can
be 3278 Display Stations Kodels 2, 3, and 41 (supported as 3211s),
3287 Printers Models 1 and 2 (supported as 3284s or 3286s), and 3289
Line Printers Models 1 and 2 (supported as 3288s). A maximum of 16
of the 32 devices can be 3271 Display Stations Model 2, 3284 Printers Model 2, 3286 Printers Model 2, 3287 Printers Kodels 1 and 2, and
3288 Line Printers Model 2. To support this configuration, the
following are required:
--The basic 3274 Control Unit permits attachment of up to 8 devices
(3278, 3287, and 3289). At least one 3278 is required.
--Each of Terminal Adapter Types Al, A2, and A3 (16901, 16902, and 16903) permits the attachment of up to 8 additional devices per
adapter (types 3278, 3287, and 3289). Only 1 of each type terminal
adapter is permitted. Terminal Adapter Type A1 is a prerequisite
to Type A2, and Type A2 is a prerequisite to Type A3.
tModels 3 and 4 are supported as Kodel 2 via hardware default. 60 IBM VPJ/370 Planning and System Generation Guide

3270s --Terminal Adapter Type Bl ('7802) permits the attachment of up to 4
additional devices (types 3277, 3284, 3286, 3287 and 3288). Only 1
adapter is permitted.
--Each of the Terminal Adapter Types B2, B3, and B4 ('7803, '7804, and #7805) permits the attachment of 4 additional devices per
adapter (types 3277, 3284, 3286, 3287, and 3288). Only 1 of each
type terminal adapter is permitted. Terminal Adapter Type Bl is a
prerequisite to Type B2, Type B2 is a prerequisite to Type B3, and
Type B3 is a prerequisite to Type B4. Terminal Adapter Types Al, and B3 are mutually --A 3274/3276 Attachment (#8331) is required for each 3287 that
attaches to the basic 3274 Control Unit, or that attaches to
Terminal Adapter Types Al, A2, or A3. A 3271/3272 Attachment (#8330) is required for each 3287 that attaches to Terminal Adapter
Types Bi, B2, B3, or B4.
And only required if a Type B adapter is used:
--Control storage Expansion feature (#1801) provides the ability to
access control unit storage addresses above 64K.
--Extended Function storage feature (#3622) provides additional
storage required to support particular attachments or
configurations. Control storage Expansion feature ('1801) is a
prerequisite.
TERMINALS
The IBM 3277 Display Station Model 2 requires one of the following
features:
--66 Key EBCDIC Typewriter Keyboard (#4630) --66 Key EBCDIC Data Entry Keyboard (#4631)
--78 Key Operator Console-Keyboard (#4632)
--78 Key EBCDIC Typewriter Keyboard (14633) The following features, while not required, enhance the convenience,
security and usability of this terminal:
--Keyboard Numeric Lock (#4690) --Audible Alarm (#1090) --Operator Identification Card Reader (#4600) --Lowercase Character Display (RPQ 18K0366) --Security Keylock (#6340) Note: Unless a 3270 terminal is dedicated supported only as a virtual 3215; that is,
as a real local or remote 3270. to a virtual machine, it is
it is not supported by VK/370 The 3278 Display Station requires one of the following features:
--75 Key EBCDIC Typewriter Keyboard (#4621)
--75 EBCDIC Data Entry Keyboard (#4622) A prerequisite is the EBCDIC Character Set feature (#9082) on the
3218. Part 1. Planning for System Generation 61