Minimum Coiled DiameterMinimum Bend RadiusCable LengthCable Part Number
5.20 in. (132 mm)1.6 in. (41 mm)3.28 feet (1.0 m)STACK-T3A-1M
7.17 in. (182 mm)3.2 in. (82 mm)9.84 feet (3.0 m)STACK-T3A-3M
1. With a 0.5 m cable, the minimum coiled diameter is negligible and the cable cannot be physically coiled
without exceeding the bending limit.
Transceiver Module Network Cables
For cabling specifications, refer to the following notes:
• Cisco SFP and SFP+ Transceiver Module Installation Notes
• Cisco 40-Gigabit QSFP+ Transceiver Modules Installation Note
Each port must match the wavelength specifications on the other end of the cable, and the cable must not
exceed the stipulated cable length. Copper 1000BASE-T SFP module transceivers use standard four twisted-pair,
Category 5 cable at lengths up to 328 feet (100 meters).
Cable Pinouts
Figure 74: Four Twisted-Pair Straight-Through Cable Schematic
Figure 75: Four Twisted-Pair Semi-Cross Cable Schematic
Cisco Catalyst 9300 Series Switches Hardware Installation Guide
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Connector and Cable Specifications
Transceiver Module Network Cables