Huawei OptiX RTN 980 Quick Installation Manual page 5

Precautions for Handling the Toggle Lever Switch
• Position and description of the toggle lever switch
CAUTION
Turn the toggle lever switch only after
gently pulling it out.
NOTE
A dual-channel IF board does not
have a toggle lever switch.
•Turning on the switch
1
Pull the switch out gently.
1
•Turning off the switch
1
Pull the switch out gently.
1
I : ON
2
Turn the switch.
2
2
Turn the switch.
2
O: OFF
3
Release the switch.
3
3
Release the switch.
3
3