I
MDR-2000
V3
User's Reference
Manual
Troubleshooting
IfLED
BMT
is not extinguished check the PBX transmitter LED which is labeled PBX (CR5).
It
should flicker as
da
ta is transmitted from the PBX to the MDR-2000.
In
addition, INT (CR8) and
RUN (CR9) will also flicker, as the data is transmitted.
If
LED PBX is being activated then the
PBX is sending data to the MDR-2000 but the MDR-2000 is rejecting the data. Check the PBX
port Baud rate to ensure that its setting matches that
of
the PBX.
If
the Baud rates are correct it is necessary to check that the correct generic
of
MDR-2000 ROM is
installed or that the PBXs CDR option is correctly programmed.
If
the above analysis indicates that the ROM may be the problem then a terminal must be used to
evaluate the performance
of
the ROM. This will reveal clues to the source
of
the problem, and will
be discussed in the following section under Remote Examination.
Failure
of
the unit to collect data or the LED's to indicate any data capture activity may result from
cable or serial I/O port problems, including incorrect Baud rate, parity or byte size settings.
LED
ERR
(CR4) is the MDR-2000 hardware error indicator. It will be permanently
on
if
an
unexpected hardware problem has occurred, or
if
during transmission
of
data to the host a memory
error has been detected. Generally this indicator is a warning that the hardware has malfunctioned.
However, unless it is accompanied by some
of
the other problems discussed in this section, it can
be ignored until preventative maintenance is convenient. CR4 is reset by the '
SM'
command.
Finally, a
brief
note on
LED's
INT and RUN. LED
RUN
is illuminated when the MDR-2000 is not
handling input or output over its communications ports. INT is illuminated when there is a
hardware interrupt in progress. Hardware interrupts occur when there is activity over the input or
output ports.
In
general when INT is illuminated,
RUN
will not be, and visa versa.
If
INT is
constantly on then the MDR-2000 is being inundated with interrupt requests, this is not the normal
mode
of
operation.
6.3 Interactive Examination
To perform an interactive examination dial the MDR-2000 or connect a terminal directly to a local
MDR-2000 or via modem. Access the Interactive Monitor by entering the following sequence on
the terminal; "VIM<Enter> . .
Use the ldent command to confirm the name
of
the
PBX
generic supported by the ROM to ensure
that this is in fact the correct MDR-2000 ROM for this PBX. The is sample output from an ldent
command:
6-3
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