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BDS Diagnostics

29-2

Dial Tone (BDS Controller) - Confirms the telephone is connected. If connected via a

multiplexer, this field indicates Failed as a normal condition.

External RAM (BDS Controller and DCM) - Writes and reads to each RAM location to

verify accessibility.

Firmware Version (BDS Controller and DCM) - Displays the version of firmware running.

Flash Memory (BDS Controller) - Calculates and verifies the program checksum in Flash

memory.

FW Reset Counter (DCM) - At boot up, the DCM runs diagnostics. If an error is found, the

DCM reboots to retest. When this happens, this counter is incremented.

HW Reset Counter (DCM) - Indicates how many times power is cycled or the DCM

performs a hardware self-reset.

Modem (BDS Controller) - Verifies the modem echoes commands.

PIO (DCM) - Checks the read/write functions of the parallel input/output device.

Processor (BDS Controller and DCM) - Checks processor internal registers and timers.

PROM (BDS Controller and DCM) - Calculates and verifies the program checksum in the

PROM.

The Clear Counters button resets the HW (hardware) and FW (firmware) counters to zero.

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Emerson Alber BDSi Guida Utente Pagina 176