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Fiber diameter
Fiber diameter is expressed as core diameter/cladding diameter, in μm. For example, 9/125 μm means that
the fiber core diameter is 9 μm and the fiber cladding diameter is 125 μm.
For the HPE devices, the following fiber diameters are recommended:
• G.652 standard single-mode fiber: 9/125 μm
• G.655 non zero dispersion shifted single-mode fiber: 9/125 μm
• G.651 standard multimode fiber: 50/125 μm or 62.5/125 μm
Connector
CAUTION: Cover the connector with a dust cap when it is not connected to any optical fibers.
Connectors connect transceiver modules to the corresponding transmission media. The transceiver
modules available for Aruba products use the following types of connectors:
• Lucent connector or local connector (LC).
Single LC connectors (also known as Simplex) are typically used for 1G & 10G BiDi (Bidirectional) optics.
Dual LC connectors (Duplex) are typically used in normal optical types.
Figure 1: LC connector (a simplex connector is shown)
• Multifiber Push On (MPO) connector.
Figure 2: MPO connector
The 40G QSFP+ MPO transceiver modules use only female MPO connectors, which have guide holes in
the end face of the MPO connector (the transceiver has guide pins within the MPO receptacle).
MPO connectors are classified as the following types based on the polish type:
Physical contact (PC): End face polished flat.
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Angle-polished contact (APC): End face polished with an angle, typically 8°.
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NOTE: 40G BiDi uses only Duplex fiber versus MPO (see below) for 40G SR4 applications.
ArubaOS-Switch and ArubaOS-CX Transceiver Guide
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