Wavelength range 1310 and 1550 nm. Tolerance with 5 dB element ±0.5 dB. Tolerance with 6 → 30 dB elements ±10% attenuation. Return loss APC ≥ 60 dB. Service life 500 expecting mating cycles. Repeatability <0.2 dB, Tłumienie = 5dB, Jednotrybowe/wielotrybow