4×MPO-12/APC Elite Male to 4×MPO-12/APC Elite Male 32F G657A1 Fiber Assembly

4×MPO-12/APC Elite Male to 4×MPO-12/APC Elite Male 32F G657A1 Fiber Assembly

The GracyFiber 4×MPO-12/APC Elite Male to 4×MPO-12/APC Elite Male fiber assembly is a 32-fiber single-mode optical interconnect designed for compact, high-density fiber routing. The assembly uses G657A1 single-mode fiber in four 0.6 mm loose-tube groups and employs MPO/APC male connectors at both ends.

• 32-fiber single-mode configuration
• 4× MPO-12/APC Elite Male connectors on each end
• G657A1 single-mode fiber
• 0.6 mm loose-tube fiber groups
• Test wavelengths: 1310 nm / 1550 nm
• Insertion Loss: ≤0.35 dB
• Return Loss: ≥60 dB
• 8° ±0.2° APC end-face polishing
• Both ends: MPO Key UP
• Operating temperature: -20°C to +70°C
• Materials specified to meet RoHS 2.0 requirements

Based on the 32F single-mode MPO/APC architecture, this assembly is suitable for applications including:

• High-density single-mode optical interconnect
• Parallel optical fiber connectivity
• Optical transceiver interconnect and test setups
• Silicon photonics and optical engine fiber routing
• Data center optical interconnect
• Optical switching and test systems
• Internal fiber routing in optical equipment

Specific compatibility with a particular transceiver standard or optical module platform should be confirmed according to the required fiber mapping and interface definition.

• 4× MPO-12/APC Elite Male at input
• 4× MPO-12/APC Elite Male at output

• 32F
• Single-mode
• G657A1

• 0.6 mm loose tube
• Four fiber groups

• Method B
• Key UP at both ends
• Fiber routing according to the supplied polarity diagram

• 500 mm +50 / -0 mm

The supplied drawing does not confirm whether the following configurations are available:

• Different assembly lengths — [Need confirmation]
• MPO female connector — [Need confirmation]
• Different fiber type — [Need confirmation]
• Different fiber count — [Need confirmation]
• Different polarity method — [Need confirmation]
• Different cable diameter — [Need confirmation]
• Alternative MPO housing colors — [Need confirmation]

This 32-fiber assembly integrates eight MPO-12/APC Elite Male connectors into a compact multi-fiber interconnect. Four MPO connectors are positioned on the input side and four on the output side, with the internal fiber routing defined by the product polarity drawing.

Although MPO-12 connectors provide twelve fiber positions, the supplied polarity diagram shows the active fiber allocation and routing used for this specific 32-fiber configuration. Page 2 of the drawing identifies the fiber positions and color-coded routing for the four input and output groups and confirms the Key UP orientation at both connector interfaces.

For optical performance, the assembly is tested at both 1310 nm and 1550 nm. The specified maximum insertion loss of 0.35 dB helps limit optical power loss across the interconnect, while return loss of at least 60 dB is particularly relevant for APC-based single-mode systems where reflected optical power needs to be controlled.

The MPO/APC connector end faces use an 8° ±0.2° polishing angle. The drawing further requires the ferrule end face to have no scratches, cracks or pits. Apex offset, radius of curvature and fiber height are specified to conform to IEC 61755 requirements.

The use of G657A1 single-mode fiber and 0.6 mm loose-tube construction supports compact fiber routing where multiple parallel optical paths need to be