
Hardware Description of LCN Node Processors – HMPU Processor and Associated Boards
12/01 Application ModuleX Service 33
Honeywell
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. An illustration is provided
below.
40025
QMEM-X
MULTSing
Bit
Pass
Mod Test
Data
Par
QMEM indicator
description
The following table gives a description of the QMEM indicators.
Reference the preceding diagram.
Table 3-6 QMEM Indicator
LED Description Suspected cause if abnormal
Pass Mod test On after board passes self-test.
Normally on.
QMEM
Data Par Parity error detected on incoming
data from the backplane module
bus. Normally off.
Another board in node,
backplane, or QMEM
Sing Bit On to indicate a single bit
(recoverable) error exists.
Normally off.
QMEM
Mult On to indicate a multiple bit
(unrecoverable) error exists.
Normally off.
QMEM
Komentarze do niniejszej Instrukcji