Differences between ATB3101-1A and ATB3101-1B
ATB3101-1A, 1A, means one core fiber and the precise of the connector is “UPC”.
ATB3101-1B, 1B, means one core fiber and the precise of the connector is “APC”.
UPC: the color of the connector is blue and the ORL(optical reflective loss) >50db.
APC: the color of the connector is green and the ORL(optical reflective loss) >55db.
APC is more delicate than the UPC.


