AT&T 518-600-016 manual Symptom All voice terminals are without lights or dial tone

NO LIGHTS OR DIAL TONE

Symptom: All voice terminals are without lights or dial tone.

Possible Cause	Possible Solution	To lnvestigate Further
1. The control unit is not	Follow the instructions under	If the green power light on
receiving power.	“Restarting the Control Unit”	the control unit is on and the
	on page 4-55.	trouble remains, call the
	If the green power light is on	equipment supplier for
		assistance.
	and the trouble is gone, the
	problem was corrected when	If the green power light is
	you reset the control unit.	off, go to Possible Cause 2.
2. The power outlet is	Make sure the control unit is	If the control unit is not
controlled by a wall switch.	not plugged into an outlet	plugged into a switch-
	controlled by a wall switch.	controlled outlet go to
	If the control unit is plugged	Possible Cause 3.
	into a switch-controlled
	outlet and the switch is
	turned off, power off the
	MERLIN II system and move
	the plug to another outlet
	See “Power to the System’”
	on page 2-90 to turn the
	power off.
3. Faulty power outlet.	Test the outlet by plugging in	If the appliance works, the
	an appliance such as a lamp	problem is caused by the
	or a calculator. If the	control unit Call the
	appliance doesn’t work the	equipment supplier.
	outlet is faulty. Have it
	repaired by an electrician.

Procedures for Specific Symptoms 4-45