Network patch cable Telegaertner Cat6a SF/UTP (S-FTP) 0.25 m, RJ45–RJ21, nickel contacts, grey

Telegaertner Cat6a SF/UTP (S-FTP) patch cable, 0.25 m, with RJ45–RJ21 connectors and nickel-plated contacts is designed for short interconnections in LAN and telecom environments. The cable meets Cat6a performance and supports data rates up to 10 000 Mbit/s. A compact grey jacket and moulded boots with latch protection make this lead suitable for use in distribution frames, patch panels, and equipment links where a reliable shielded connection is required.

Advantages

The SF/UTP (S-FTP) shielding provides full protection against electromagnetic interference for improved signal integrity in dense cabling environments. Nickel-plated contacts offer corrosion resistance and consistent electrical contact. The moulded strain relief boot and flexible design reduce mechanical stress at the connector, while the 360° plug shielding on shielded variants ensures continuity of the screen. The cable jacket is available in PVC or LSZH (Low Smoke, Zero Halogen) for installations with specific fire-safety requirements.

Suitable for

• Short equipment-to-equipment connections within racks and enclosures
• Patching between distribution frames and patch panels
• Telecom interfaces requiring RJ21 to RJ45 conversion
• Shielded local area network segments in electrically noisy environments

Key specifications

• Category: Cat6a
• Shielding: SF/UTP (S-FTP) — overall foil with individually shielded pairs
• Length: 0.25 m
• Connectors: RJ45 (male) to RJ21 (male)
• Contacts: nickel-plated
• Maximum data rate: up to 10 000 Mbit/s
• Boot options: 90°, 180°, 270° moulded boot with latch protection; variants with very short boot
• Plug shielding: 360° surround on shielded cable types
• Jacket and boot materials: PVC or LSZH (Low Smoke, Zero Halogen)

How to use

Insert the RJ45 connector into the Ethernet port and the RJ21 connector into the corresponding telecom or aggregation socket until the latch engages. Verify the correct termination sequence (EIA/TIA 568B) where applicable. Route the cable with enough bend radius to avoid kinking and ensure the moulded strain relief boot is seated against the connector to minimise mechanical stress. For installations in racks or confined spaces, use the appropriate boot angle variant (90°, 180° or 270°) to maintain clearances.

Recommendations

For best performance, use the cable for short patching runs and inside enclosures where shield continuity can be maintained. Choose LSZH jacket material for installations with low-smoke requirements and select the boot angle that provides the cleanest routing in your setup. Avoid excessive bending or tensile load to preserve connector and cable integrity.