User
’s manual
10
18
Display restore factory setting interface, as shown below:
R E S T O R E
F A C T O R Y
C O N F I R M
Press “ENTER” button, jump
①
to display.
Press “ENTER” button, enter restore factory confirm interface.
C A N C E L
A F F I R M
Press “NEXT” button, cancel restore factory setting, and jump to restore factory
setting interface.
Press “NEXT” button, confirm restore factory setting. First displaying restore
factory setting success, then pressing“ENTER” button to jump restore factory setting
interface.
R E S T O R E
F A C T O R Y
S U C C E S S
4.
Alarm breakdown analysis
Alarm
Possible cause
Pre-warranty check
Pin<input optical power
threshold,
no
input
optical power alarm
1.
Optical transmitter no optical
output
2.
Input optical fiber connector is
not connected well
3.
Connector end face damaged
4.
EDFA damaged
1. Check input optical
power by optical power
meter
2.
Clean
input
optical
connector
3.
Re-plug
optical
connector
Pout<output
optical
power
threshold,
no
input
optical
power
alarm
1.
Pump don’t turn on switch
2.
Input optical wavelength not
within 1530nm-1560nm
3.
EDFA damaged
1.
Check pump switch
whether is on state
2.
Check
input
optical
wavelength whether is
within 1550nm-1560nm
3.
Check
environment
temperature whether is too
high causing pump off
automatically