Emerson BDS-256XL Podręcznik Użytkownika Strona 164

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BDS Diagnostics
27-2
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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