Owner`s manual

M SERIES DAC
BASE UNIT AND MODULE OPERATION
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connection problem only if twisted pair cabling is being used. The red RX/TX LED
indicates network activity.
The four LED indicators on the front panel of the base unit are used for diagnostics and
operation.
DIAGNOSTIC LED INDICATIONS
When the M-Series DAC unit is reset or powered up, the LEDs on the base unit will go
through a scanning sequence beginning with Module 1 Port 1 and ending with the
highest module number Port 4. Then a certain number of LEDs corresponding to the
number of installed modules will stay on for a brief period of time. For example, if six
modules are installed, the LEDs for Module 1 Ports 1 through 4 and Module 2 Ports 1
and 2 will stay on briefly. Next, the LEDs will scan down beginning with the highest
module number Port 4 and ending with Module 1 Port 1. If you notice one of the LEDs
corresponding to the number of installed modules stay on after the LEDs scan down,
this indicates a failure with the corresponding module. For example, if the LED for
Module 1 Port 2 stays on after the LEDs scan down, then Module 2 has a problem.
The V72 will give diagnostic indications approximately five seconds after completion
of the reset/power-up scan. The first diagnostic indication is a hardware check. If the
V72 hardware checks out, all four V72 LEDs will flash once. If a hardware failure is
detected, one of the first three LEDs for the V72 module will flash continuously. If this
happens, you should contact BayTech.
If the hardware check passes, the V72 will read the configuration parameters from the
main board non-volatile RAM. If the V72 configuration checks out, all V72 LEDs will
flash once. Therefore, if the V72 hardware and configuration checks both pass, you
should notice all four LEDs on the V72 flash twice. If you notice that one of the V72
LEDs flashes continuously after the hardware check passes (i.e., after all four V72
LEDs flash once), this indicates that a configuration error has been detected. If this
happens, the V72 will not respond to any network access attempts. Configuration
problems can be corrected by programming the indicated parameter as follows: