AT&T EL52203 사용자 매뉴얼

89

Appendix

California Energy Commission battery charging testing instructions

This telephone is set up to comply with the energy-conserving standards right out of the box. These 
instructions are intended for California Energy Commission (CEC) compliance testing only. When the 
CEC battery charging testing mode is activated, all telephone functions, except battery charging, will  
be disabled.

Unplug the telephone base power adapter from the power outlet. Make sure all handsets are 
plugged with charged batteries before proceeding.
While you press and hold 

/HAnDSET loCAToR, plug the telephone base power adapter back to 

the power outlet.
After about 20 seconds, when the 

In USE light starts flashing, release  /HAnDSET loCAToR and 

then press it again within two seconds.

When the phone successfully enters the CEC battery charging testing mode, the 

In USE light 

turns off and all handsets display 

To register HS... and ...see manual, alternately.

When the phone fails to enter this mode, repeat all the steps, as mentioned above.

Unplug the telephone base power adapter from the power outlet, then plug it back in.  
The telephone base is powered up as normal.
Register your handsets back to the telephone base. See page 

67

 for handset registration 

instructions.

1.

2.

3.

1.

2.