Part 1 Model 400T And Model 400Dl Product Overview; Introduction; Model 400T Overview - HP 400 Series Servicing Manual

Part 1 Model 400t and Model 400dl Product Overview
1.1

Introduction

The Model 400t and 400dl systems are identical except for the (Central Processing
Unit) CPU boards. The Model 400dl CPU board does not have some of the connectors
and logic that are available for the Model 400t. This limited CPU board restricts the
configurations of the Model 400dl to a subset of the Model 400t configurations.
1.1.1

Model 400t Overview

The Model 400t uses the MC68030 microprocessor and the MC68882 floating-point
coprocessor on an emulator board attached to the CPU board. The system includes
one interface slot for DIO II or SGC graphics interface boards and one interface slot
for a network controller board (either an 802.5 or an Apollo Token Ring network con-
troller) or an HP-IB interface board.
Model 400t systems that are running Domain/OS use the network controllers and the
Domain low-profile keyboard. Model 400t systems that are running HP-UX use the
HP-IB interface board and the HP 46021A keyboard and other HP-HIL (Human In-
terface Loop) devices. The system can also include one or two 200-MB Winchester
disk drives. The display options are a
•
•
•
A Model 400t base system uses 8 MB of main memory. Model 400t systems use a 2-
or 4-MB memory board in sets of two, which allows for system configurations of 8
MB to 32 MB of main memory, in 4- or 8-MB increments.
The CPU board contains the following built-in I/O interfaces:
•
•
•
•
1-2 Product Overview
Monochrome 19-inch, 1280 x 1024, bit-mapped monitor and graphics control-
ler
Color 16-inch, 1280 x 1024, bit-mapped monitor and graphics controller
Color 19-inch, 1280 x 1024, bit-mapped monitor and graphics controller
Domain keyboard
HP-HIL keyboard and input device
RS-232 (expandable with the optional 3-port adapter for Domain/OS systems)
802.3 network (AUI or ThinLAN, jumper selectable on the CPU board)