Cisco QSFP-100G-LR-S= QSFP28 Transceiver 100GBASE-LR1 Single Lambda 1310 nm Duplex LC Single-Mode up to 10 km
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Cisco QSFP-100G-LR-S= QSFP28 Transceiver 100GBASE-LR1 Single Lambda 1310 nm Duplex LC Single-Mode up to 10 km
€1995.48 inc. VAT
QSFP-100G-LR-S=
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Delivered to Cyprus from EU stock
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Cisco QSFP-100G-LR-S= — 100G LR1 Single-Lambda, 10 km
100 GbpsLR1 single lambdaDuplex LCUp to 10 km
The Cisco QSFP-100G-LR-S= is a 100GBASE-LR1 QSFP28 transceiver that carries 100 Gbps on a single 1310 nm wavelength, using PAM4 with onboard FEC, up to 10 km over single-mode fibre. It is used for 100G links between buildings and sites on Cisco switches. Although the feed describes it as “100GBase-LR”, Cisco lists it as LR1 — a different standard from the familiar four-wavelength LR4. In practice, single-mode optics are the choice when a link leaves the building or runs several hundred metres: the OS2 fibre used by carriers and campus backbones carries the signal for kilometres with little loss. Before you order, confirm the fibre is single-mode at both ends and note the length and the number of patch panels on the way.
Compatibility — check before buying:
This is LR1, not LR4. It will only link to another 100GBASE-LR1 module — it will not link to a QSFP-100G-LR4-S even though both reach 10 km on single-mode fibre. If the far end already has an LR4 optic, order QSFP-100G-LR4-S= instead. Cisco colour-codes this module with a blue pull tab. Keep the dust cap on until you connect the fibre, and clean both connector ends before every mating — dirt is the most common cause of a link that will not come up. Not sure? Send us your switch model and the cable run and we check it before you order.
Best For
✓ 100G links between buildings
✓ Campus and metro backbones up to 10 km
✓ New 100G single-mode links on Cisco switches
✓ Single-lambda 100G/400G architectures
✓ Data-centre interconnects
✓ Replacing a failed LR1 module
Key Features
Single-lambda 100G
One PAM4 wavelength instead of four CWDM lanes. It is the 100G building block of newer 400G single-lambda optics.
Single-mode fibre, long reach
Built for single-mode (OS1/OS2) fibre, the type used between buildings, floors and sites. It will not run over the orange or aqua multimode fibre found in many racks — the fibre type has to match at both ends.
Hot-swappable
Modules plug into a live port without shutting the switch down, so a link can be added or replaced during working hours. Seat it until it clicks and use the latch to remove it.
Plan both ends together
A link only comes up when both ends use the same standard, speed and media. Order the far-end optic, the patch cord and any spares in one go and the link works on day one.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
We check the far end before we sell a 100G 10 km optic: if it is an LR4, this LR1 module will not link. For new links where both ends are bought together, LR1 is the forward-looking choice. For runs within 2 km, the QSFP-100G-FR-S= uses the same single-lambda approach at lower cost. Every order is backed by Singular’s local support in Cyprus — if a link will not come up, send us the port status from the switch and we help you find out whether it is the optic, the cable or the configuration. Browse all transceivers and DAC cables or the switches they plug into.
Buyer’s Guide
Buy it if
Both ends of a 100G single-mode link up to 10 km will use LR1 optics on Cisco QSFP28 ports.
Skip it if
The far end is an LR4 module, or your fibre is multimode.
Also consider
Cisco QSFP-100G-LR4-S= for LR4 links, or QSFP-100G-FR-S= for 2 km.
Χαρακτηριστικά
Product Code
677VB97
EAN Code
0889728245012
Manufacturer
Cisco