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Chapter 2. Installation
61200310L1-1
Octal and Quad FXO Modules User Manual
2-3
Failed Self-Test
If the module fails self-test, a message displays on the terminal menu self-
test log. See the ATLAS 550 User Manual for details.
Operation Alarms
The red ALARM LED (located with the Module LEDs on the front panel) il-
luminates when an alarm condition is detected.