OPERATING PROCEDURES
MFP MODULE STOP/RESET SWITCH
I-E96-203C
4 - 3
Red/Green Status LED
The status LED is a red/green LED. It shows MFP operating
condition. There are four possible states.
Off
No power to the module or the module is powered and jumper
J4 is installed (machine fault timer disabled). The machine
fault timer circuit must be enabled. The status LED momen-
tarily goes off when the microprocessor initializes on start-up.
Solid Green
The module is in execute mode.
Flashing Green
The module is in execute mode but there is an NVRAM check-
sum error, or the module is in the configure or error mode.
Solid Red
The MFP diagnostics have detected a hardware failure, con-
figuration problem, etc., and stopped the module. Addition-
ally, the group B LEDs will illuminate in a certain sequence
to display the error code.
MFP MODULE STOP/RESET SWITCH
NOTES:
1.
Do not remove an operational MFP module under power unless
the stop/reset switch has been depressed once and the module has
halted (status LED is red and group B LEDs one through six are on).
This procedure must be followed when removing a module from a
redundant configuration. An operational module must halt operation
before control passes to the secondary module.
2.
Firmware revision levels must be the same in both primary
and secondary MFP modules. If the firmware revision levels are
different and a failover occurs, the secondary MFP module may
operate erratically.
The stop/reset switch is a two-hit switch. It stops the module in
an orderly manner, preventing glitches on the bus. The switch
is accessible through the opening on the faceplate (Fig.
).
Since the opening is small, pressing the switch requires a thin
round object. Pressing the switch once stops MFP operation.
Always stop the MFP module before removing it from the mod-
ule mounting unit. Stopping the module in this way causes it to:
•
Save and lock the MFP configuration.
•
Complete any nonvolatile memory write operations in
progress.
•
Deactivate all communication links.
•
Transfer control from the primary module to the second-
ary module in redundant configurations.
•
Change the status LED color to red.
