... the IEC standards, GR-326-CORE, in the test of optical characteristics, vibration test, thermal cycling, impact resistance, salt ... spray erosion, thermal aging, humidity resistance and othersKey FeaturesLow insertion lossLow return lossVarious connector types availableEasy instalationEnvironmentally ... Standard)Undercut -50nm ≤ U ≤ 50nmTested by DORC ZX-1 Fiber Optic LC Patch Cord