Q: What fibre types does the QSFP-100G-SR1 support?
A: The QSFP-100G-SR1 operates over duplex multimode fibre — specifically OM3 (up to 70m) and OM4 (up to 100m) — using an LC duplex connector interface.

Q: What is KP FEC and why does it matter?
A: KP FEC (Key Performance Forward Error Correction) is a forward error correction mechanism defined in IEEE 802.3 for 100G optical links. It compensates for signal degradation over multimode fibre, improving link reliability and enabling longer reach compared to non-FEC transceivers.

Q: Which Arista switches is the QSFP-100G-SR1 compatible with?
A: This transceiver is designed for use with Arista 7000-series switches that include QSFP ports supporting the 100GBASE-SR1.2 standard. It may also interoperate with other vendors' platforms that support the same standard and KP FEC, though compatibility should be verified.

Q: Can I use this transceiver with my existing OM3 multimode fibre cabling?
A: Yes. The QSFP-100G-SR1 supports OM3 multimode fibre at distances up to 70 metres, allowing organisations to leverage existing OM3 infrastructure when migrating to 100G without a full cabling replacement.

Q: Is the QSFP-100G-SR1 available for purchase in Australia?
A: Yes. The Arista QSFP-100G-SR1 is available to order directly through iptrading.com.au, an Australian-owned and operated IT hardware reseller with over 20 years of experience supplying B2B networking and optical components.

Q: What is the difference between 100GBASE-SR4 and 100GBASE-SR1.2?
A: 100GBASE-SR4 uses four parallel multimode fibres (via MPO connectors) each carrying 25G, while 100GBASE-SR1.2 uses a single duplex LC fibre pair carrying the full 100G signal. SR1.2 is advantageous where duplex LC infrastructure already exists, avoiding the need for MPO cabling.