Multitech MMH900 User Manual page 110

5 To check the Watch-Dog circuitry, place the local MultiMux unit in
Test Mode 9 (i.e., executing the Watch-Dog Timer Test) by entering
the following command:
AT&T9 (hit Return)
The supervisory console will display the following message:
Watch-Dog Timer Test #9 - wait for test indicator to turn off and when
the test indicator comes back on, enter "AT" to end test.
6 As the message indicates, after the test indicator comes back on
enter the following:
AT
If the test passes, the following message will be displayed:
WATCH DOG TEST PASSED
Chapter 7 - Troubleshooting Procedures
(hit Return)
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