User's Manual

P.G. TM0054RA
3-2
3.3 OPERATING INSTRUCTIONS
When powered, the unit green LED on the Interface module will be illuminated and the
alarm relay terminals will be in their normal condition.
When the unit is first turned on, the red LED may illuminate briefly and the alarm relay
may switch to indicate an alarm condition while the PLLs are locking and the modules
are disabled. Under normal operation, only the green LED will be on.