LWL Cable LC/APC-LC/APC OS2 (G.657.A2) Fiber Optic Patch Cable Duplex

Fiber Optic Duplex Patch Cord LC/APC–LC/APC – Precise Connection for Full-Duplex Networks

A fiber optic duplex cable belongs to the basic equipment of modern networks that rely on fiber optics. It transmits data simultaneously in both directions, ensuring stable, low-loss communication – even over longer distances. The cable described here is equipped with LC/APC connectors and manufactured according to the singlemode G.657.A2 standard. Due to its reliability and high optical quality, it is ideal for FTTH connections, network cabinets, or use in data centers.

Structure and Materials

The fiber optic duplex cable consists of two tight-buffered singlemode fibers protected by Kevlar strain relief and enclosed together by an LSZH (Low Smoke Zero Halogen) jacket. This material is halogen-free, flame-retardant, and meets the IEC 60754-2, IEC 60332-1, and IEC 61034 standards. It provides indoor safety and reduces smoke emission in the event of a fire.

The outer jacket measures 2.0 × 4.0 mm, and the two optical fibers each have a diameter of 0.85 mm. The yellow color identifies the cable as singlemode OS2. This combination of LSZH protection and Kevlar reinforcement makes the bend-insensitive fiber optic duplex patch cord durable and robust – even with frequent movement or tight installation paths.

Performance Data and Technical Special Features

The G.657.A2 type fiber allows a minimal bending radius of 7.5 mm, enabling flexible routing without significant attenuation losses. This distinguishes it clearly from older variants such as G.652.D. The fiber optic LC duplex is therefore ideal for installations with limited space and offers permanently stable signal quality. The LC/APC connectors (green, 8° angled) reduce back reflections and achieve a return loss of ≥ 60 dB with an insertion loss of ≤ 0.15 dB (typical).

Since two fibers are used, the singlemode duplex fiber optic cable supports full bidirectional transmission.  This allows data to be sent and received simultaneously – a decisive advantage over simplex connections. The cable withstands over 1000 mating cycles, with attenuation changing by less than 0.2 dB.

Installation and Operating Environment

The assembly of the duplex fiber optic cable is simple and safe. The connectors are already factory-terminated and tested, meaning no special tools or splicing equipment are required. When routing, the minimal bending radius of 7.5 mm must be observed. Thanks to the flat jacket, the cable can be routed in patch panels, wall outlets, or network cabinets to save space.

The temperature range from –40 °C to +85 °C allows use even in less air-conditioned rooms. Due to its duplex design, the cable is particularly suitable for FTTH home connections, point-to-point connections, and everywhere where simultaneous bidirectional transmission is necessary.

Conclusion

The LC/APC–LC/APC G.657.A2 model combines precise optical transmission with mechanical stability. It offers fiber optic full duplex functionality, a bend-insensitive fiber, Kevlar reinforcement, and a halogen-free LSZH jacket.

Whether in the FTTH area, in the server rack, or in the network cabinet – this fiber optic duplex LC APC cable delivers a reliable, low-loss connection and meets the highest requirements for safety and durability.

Technical Data

Scope of Delivery

FAQ

What is a fiber optic cable LC/APC-LC/APC Duplex used for?

• This fiber optic cable is used for optical data connections with an LC/APC port. It is suitable, for example, for network cabinets, fiber optic patch panels, media converters, SFP modules, and other devices with a matching LC/APC connection.

Does the cable fit my fiber optic connection?

• The cable fits if both ends require an LC/APC connection. Crucial points: the connectors must be green, and the devices or junction boxes must explicitly support LC/APC. If one side has SC/APC, LC/UPC, or another type of connection, this cable will not fit.

Can I use the cable for FTTH?

• Yes, if LC/APC connections are required for the FTTH installation. However, many fiber optic connections also work with SC/APC. Therefore, you should check before buying which connector type is present on your fiber optic termination, router, or media converter.

Can I connect the cable directly to a FRITZ!Box?

• Only if the FRITZ!Box or the fiber optic module used requires an LC/APC connection. Many fiber optic routers or connection boxes use other connectors, such as SC/APC. Therefore, please carefully compare the connection before purchasing.

Can the cable be bent?

• No. Fiber optic cables must not be sharply bent or squeezed. Tight bends can increase attenuation or damage the fiber. The cable should always be laid with a sufficiently large bending radius.