LC-D coupling, slotted ceramic guide sleeve for single-mode applications, slotted metal guide sleeve (Ph-Br) for multi-mode applications, conformity with the corresponding IEC framework specifications regarding test specifications and plug compatibility with LC connector type according to IEC 61754-20, compliance with EN 50173-1 or ISO/IEC 24702 regarding the limits for insertion loss, flame-retardant and halogen-free plastic housing, flame-retardant and halogen-free dust protection cap, can be integrated into flange or junction box of variants 1 and 4, only sets are available for variant 14, service life: at least 500 mating cycles, operating temperature -40 °C to +70 °C, variants: blue (SM), beige (MM)