IBM System/370 Guide

Physical planning for Model 165 installation should insure that
arrangements are made to provide the required water. (See System/370
Installation Information, Physical Planning, GA22-6971 for more
details,. )
Motor Generator Set
The motor generator (MG) set is the converter unit that provides
the power required by the Model 165 CPU. It takes 60 Hz (cycle) power
from the building electrical distribution system, converts it to 415
Hz power, and supplies it to the cPU.
Unlike the MG sets provided for the 7000-series, which were small
enough to be housed within the covers of the system itself, the MG
set (including the required starter) for the Model 165 is a stand-alone
unit approximately six feet long, weighing 3000 lbs. (See system/370
Installation Information,. Physical Planning for more details concerning
MG set size and installation requirements.)
The MG set should be ordered at the same time as the Model 165,
with delivery up to two months prior to system installation. While
IBM does not manufacture MG sets. a procedure is established for
ordering the required MG set through IBM.
3066 SYSTEM CONSOLE
A stand-alone system console unit,. which can be located up to
approximately 25 feet away from the CPU. is required for the Model
165. This unit contains the system control panel (buttons, switches,
lights, etc., required for system operation), as well as standard
advanced console features: a cathode ray tube and keyboard, a microfiche
indicator viewer, a microfiche document viewer, a processor storage
configuration plugboard. a system activity monitor, and a device for
loading microcode and diagnostics. Certain of these features are
included to enable the customer engineer to detect CPU malfunctions
more rapidly than would otherwise be possible.
Installation of the optional Remote Operator Console Panel Attachment
feature on a Model 165 permits duplication of the operator control
panel section of the system console unit on a 2150 Console or a 2250
Display Unit Model 1.
The cathode ray tube (CRT) unit provided contains a 4K buffer.
In normal mode, the CRT and alphameric keyboard are designed to be
used as the operating system operator's console to provide the rapid
message display required by large systems like the Model 165. Two
operator warning indicators are provided. A switch setting determines
whether a visual indicator or an audible alarm with volume control
is used. In CE mode. the CRT and a set of 16 data keys can be used
to display and manually alter processor storage, the general purpose
and floating-point registers, the channel buffers, or the CPU buffer
address array. Data is entered in hexadecimal by means of the data
keys, each of which represents a hexadecimal digit.
The microfiche indicator viewer is included in the console unit
for display of status and control indications. The display utilizes
a -framing- concept: the customer engineer uses a -frame selection
switch- to select anyone of ten images. Each image consists of up
to 240 indicators" the current value of which is then displayed in
incandescent lights along with the appropriate microfiche image that
labels the lights. In this way up to 2400 status and control triggers
may be displayed, yet the console requires only 240 incandescent lights.
13

IBM System/370 Specifications

General

Brand	IBM
Model	System/370
Category	Server
Language	English