8
7- Video signal LEDs (1550nm)
8- AUTOpower/off key
9-UPIn the first interface, switch visual fault location model
（
VFL
）
10- ENTER: Confirmation the function selection and saving the data.
11- MENU: PON/CW Power meter module Option
12- DOWM,In the first interface,Switch between
VFL in continuous light
(the CW) and pulse light (HZ)
13- CANCEL:Function cancel
14- USB PORT
④：
Only JW3213A and JW3213AV up/down keys for VFL function
PON Online test connection diagram
OLT PON Interface optical power test configuration diagram
OLT
ONT
……
Data Networks Analyser
IXIA/Smartbits
Fiber
Fiber
Optical Splitter
