Specifications

Application ModuleX Overview
2.2 Hardware Organization
3/96 Application Module
X
Service 5
Honeywell Inc.
2.2 Hardware Organization
A
X
M hardware
block diagram
Two versions of A
X
M hardware will be available. One uses the K2LCN
board as the LCN node processor and the other uses the HMPU/LLCN/
QMEM combination of boards as the LCN node processor.
The diagrams on the following two pages show the major hardware
components that make up the A
X
M hardware. Pay particular attention to
the following:
• Names and acronyms of the components
• Interconnection between components
• External connections to:
– Local Control Network (LCN)
– Plant Information Network (PIN)
– “Console terminal” (when required for initial configuration or
troubleshooting). A console terminal is a simple keyboard and
display device that has no processing capability. Several device
types can be used to satisfy this requirement. They are addressed
later in this manual.
– Modem for Technical Assistance Center (TAC) access (if required
for complex problem isolation activities).
– Digital Audio Tape (DAT) drive (optional) to support hard disk
backup, restore, and software update activities. It is also used for
recovery activities in the event of some hard disk drive failures.
– CD-ROM (optional) provides access to the HP-UX online software
documentation.