Product specifications

Chapter 5 Operation
79
Automatic laser shutdown and restart concept
The ALS mechanism implemented in FMUX01A/Plus is compliant with ITU Recommendation ITU-T
G.664. The ALS mechanism can be enabled or disabled in 5.5 Optical Interface Parameters Configuration.
<< Flow Chart>>
Automatic restart Manual OE restart Manual OE restart for test
Delay time (100s)
Tx on for (2s)
Tx on for (2s) Tx on for (90s)
Start
ALS operation enable
Receive signal from far end?
Loss of received signal
Auto power shutdown
Yes
Yes
No
No