Formatter-to-control panel communication interruptions
●
The firmware does not fully initialize and configure the control panel interface.
●
The control panel is not functioning (either a failed assembly or power problem).
●
Interface cabling between the formatter and control panel is damaged or disconnected.
TIP: If the connectivity LED is illuminated—by an error condition or normal operation—the formatter is
fully seated and the power is on. The pins for the LED circuit in the formatter connector are recessed so that
this LED will not illuminate unless the formatter is fully seated.
The heartbeat LED operates according to the product state. When the product is initializing, see Connectivity
LED, product initialization on page 141. When the product is in Ready mode, see Connectivity LED, product
operational on page 143.
Connectivity LED, product initialization
The following table describes the connectivity LED operation while the product is executing the firmware
boot process.
NOTE: When the initialization process completes, the connectivity LED should be illuminated solid green.
If after initialization, the connectivity LED is not solid green, see
Connectivity LED, product operational
on page 143.
Table 2-10 Connectivity LED, product initialization
Product initializing state Connectivity LED, normal state Connectivity LED, error state
No power (power cable
disconnected or power
switch off)
Off Not applicable
Power on (immediately
after the power switch
pressed)
Red, solid
●
Duration should be 1 second or less
Red, solid
●
Firmware error; problem finding hardware
and booting the serial peripheral interface
flash memory
◦
Boot process halted
Replace the formatter.
Serial peripheral
interface (SPI) flash
memory boot
Green, solid Red, solid
●
Firmware error; problem corrupt or missing
SPI flash memory
◦
Boot process halted
Replace the formatter.
HW checks on board
DRAM
Green, solid Red, solid
●
Power on self check failure
◦
Boot process halted
Replace the formatter.
ENWW Tools for troubleshooting 141
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