Specifications

Hardware Description of LCN Node Processors
3.2 HMPU Processor and Associated Boards
3/96 Application Module
X
Service 19
Honeywell Inc.
QMEM-X board
This board is used to provide additional memory for the HMPU node
processor. The 2 megaword version is supplied in the A
X
M. The memory
size of any QMEM can quickly be determined by looking at the last digit of
the name on the left board extraction lever.
Example:
A minimum of 4 megawords of node processor memory is required to
support R431
(HMPU=2 + QMEM-2=2).
QMEM indicators
The QMEM board indicators are visible from the free edge of the board
while it is installed in a chassis. They provide visual indications regarding
the existing conditions on the board.
QMEM indicator
description
The following table gives a description of the QMEM indicators.
Reference the preceding diagram.
Table 3-4 QMEM Memory Capacities
Board name Memory capacity
QMEM-2 2 Megawords
QMEM-3 3 Megawords
QMEM-4 4 Megawords
Table 3-5 QMEM Indicator
LED Description Suspected cause if abnormal
Data Par Parity error detected on incoming
data from the backplane module
bus. Normally off.
Another board in node,
backplane, or QMEM
Pass Mod test On after board passes self-test.
Normally on.
QMEM
40025
QMEM-X
MULTSing
Bit
Pass
Mod Test
Data
Par