For measuring insertion loss and return loss accurately and repeatedly
the reference connector needs to outperform the connector under test.
Reference cables from OptoTest are manufactured and certified to an
appropriate high standard meeting and exceeding FOTP171A (A2.2.1).
PC
APC
Insertion loss
<0.1dB Max
<0.1dB Max
Return loss
Singlemode:
>55dB
>70dB
Multimode:
>45dB
Radius of
curvature
7mm ... 25mm
5mm ... 12mm
Apex offset
<50um
Fiber height
+/- 50nm
+/-100nm
Fiber core position (eccentricity)
<0.50um
Example:
HPR-FP-FP-S single mode FC/PC to FC/PC cable
