User's Manual

Note:
If you followed the instructions in Step 1 of this procedure, you set the Watchdog
timer to 30 seconds. Therefore, you must fill in a time period that is significantly
lower than this value, for example, 8 seconds.
Note:
After selecting the COM port, keep in mind that other Modules use COM ports
as well, such as eCAP, eESPA, eIO.
9. Verify correct operation.
To test the operation of the Watchdog, set the time in the eKERNEL_SITE table to
a higher value (for example, 40 seconds). As a result, the signal does not arrive
within 30 seconds, the Watchdog timer expires, and the alarm relay contacts are
closed. After you finish testing, remember to set the time value in the
eKERNEL_SITE table back to its original value (for example, 10 seconds).
See the following section,
Watchdog settings and indicators on page 123, for
additional information about the Watchdog card.
Watchdog settings and indicators
• LEDs
Table 13: Top LED Indications
Top LED Indication Meaning
Flashing at 1 second ON - 1 second OFF This condition appears at power up of the
PC for 2,5 minutes, to let the PC power
up.
Understanding Security features
DECT Messenger Fundamentals March 2012 123