SFP-10G-ER-S 10G SFP+ ER Enhanced Transceiver

Brand: Cisco | Category: Transceivers & Cables

SKU: CISCO-SFP-10G-ER-S-10G-SFP-PLUS-ER-ENHANCED | Part #: SFP-10G-ER-S | MPN: SFP-10G-ER-S

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The SFP-10G-ER-S represents Cisco's answer to long-haul metropolitan and regional optical connectivity within the SFP+ form factor. This is a 10 Gigabit single-mode fibre transceiver engineered specifically for distances up to 40 kilometres—the "ER" designation stands for Extended Reach, and the "S" variant denotes the enhanced specification that Cisco applies to this particular SKU. Network engineers deploying Cisco Catalyst, Nexus, or ASR series switches requiring extended optical reach without jumping to higher-density modules will find this module addresses a practical gap between short-reach SR optics and more expensive long-haul solutions. The part number SFP-10G-ER-S appears on every purchase order for this specific performance tier, and it is the exact nomenclature required when specifying compatibility with Cisco's SFP+ slot configurations.

What distinguishes this transceiver from commodity 10G SFP+ modules is the combination of wavelength, receiver sensitivity, and laser technology. Operating at 1550 nanometres—the long-haul standard for single-mode fibre—the SFP-10G-ER-S employs a cooled Electro-Absorption Modulated Laser (EML) on the transmit side and an Avalanche Photodiode (APD) receiver. This pairing delivers the sensitivity required for 40-kilometre reaches: a receive sensitivity floor of -15.8 dBm allows the module to detect and lock onto signal over distances where shorter-reach optics would fail. The transmit power window runs from -4.7 dBm to +0.5 dBm, and the receiver accepts signals up to -1.0 dBm maximum input, a dynamic range that accommodates variable optical path losses typical of metropolitan networks with splitters, couplers, and aged cabling. Cisco has engineered this module to run at approximately 2 watts of power consumption—modest enough for dense line-card deployments where thermal budgets are tight.

Compliance and operational reliability matter as much as raw performance in enterprise environments. The SFP-10G-ER-S meets IEEE 802.3ae 10GBASE-ER standards and carries RoHS certification, meeting environmental and regulatory requirements across European, Middle Eastern, and Asian markets where Omnixon operates. The module supports Digital Optical Monitoring (DOM), allowing network administrators and remote management systems to track real-time metrics such as transmitted and received power levels, laser bias current, and module temperature. This visibility is essential in troubleshooting optical link degradation before it cascades into customer-facing outages. The extended operating temperature range of 0 to 70 degrees Celsius ensures reliable operation in both air-conditioned data centre environments and equipment rooms in older facilities or remote locations where climate control is less stringent. The LC duplex connector is the industry standard for 10G optics and requires no specialised cabling knowledge from installation teams. As a hot-swappable module, the SFP-10G-ER-S can be inserted or replaced without powering down the line card, a capability that accelerates maintenance windows and reduces scheduled downtime.

From a deployment perspective, this transceiver serves several common use cases. Data centre interconnect (DCI) over metropolitan distances—typically 30 to 40 kilometres between campuses in the same city—is a primary application where the SFP-10G-ER-S delivers 10 Gigabit throughput without requiring separate 40G or 100G infrastructure on both ends. Enterprise networks linking main office to regional offices across a city or cluster of towns rely on this class of optic when multi-mode fibre is unavailable or economically unfeasible to install. Disaster recovery and backup replication over longer intra-city links also depend on extended-reach optics at this bandwidth level. Storage architects designing high-bandwidth backup and archival systems often specify these modules to connect backup appliances located at separate facilities. Network engineers managing hybrid cloud infrastructure frequently use them to tunnel between on-premises data centres and edge computing nodes distributed across a metropolitan area. The Cisco SFP-10G-ER-S also fits upgrade scenarios where existing installations already have single-mode fibre runs in place—replacing older CWDM or DWDM optics with modern Cisco transceivers is a common path when refreshing switching infrastructure without ripping out fibre.

Omnixon Global stocks the SFP-10G-ER-S and compatible Cisco optics modules from our Dubai hub, serving data centres, system integrators, and enterprises across the GCC, South Asia, and Europe. We understand the urgency of optical module availability—a missing transceiver can block network upgrades or delay time-sensitive deployments. Our inventory includes original Cisco parts, technical datasheets, and compatibility matrices for Catalyst, Nexus, and ASR platforms. If you are planning long-haul 10G connectivity within your network infrastructure or evaluating SFP+ transceiver options for extended-reach applications, we invite you to request a quotation for the SFP-10G-ER-S or discuss alternative form factors and wavelengths that may suit your topology. Contact our technical sales team to confirm part availability, lead times, and support options for your deployment.

Interface & Connectivity Specifications

• Form factor: SFP+ with LC duplex connector; compatible with any Cisco switching platform equipped with SFP+ transceiver slots (Catalyst, Nexus, ASR series)
• Data rate and compliance: 10.3125 Gbps per IEEE 802.3ae 10GBASE-ER standard; single-mode fibre at 1550 nm wavelength
• Maximum reach: 40 kilometres on standard single-mode fibre (SMF); enables metropolitan and regional area networks without higher-density or specialised optics
• Optical performance: Cooled EML transmitter (-4.7 to +0.5 dBm), APD receiver with -15.8 dBm sensitivity floor and -1.0 dBm maximum input
• Monitoring and reliability: Digital Optical Monitoring (DOM) for real-time power, temperature, and laser metrics; hot-swappable design; operating temperature 0 to 70°C; power consumption approximately 2.0 W
• Regulatory compliance: RoHS certified; meets environmental and data protection standards for EU, GCC, and Asia-Pacific markets