SFP-10G-ER-S – 10GBASE-ER SFP+ – S-Class – 40km SMF

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SFP-10G-ER-S Description

SFP-10G-ER-S is a Cisco S-Class 10GBASE-ER SFP+ transceiver for 10 Gigabit Ethernet links over G.652 single-mode fiber. It is used when a Cisco BOM requires an extended-reach 10G SFP+ optic, with Cisco-confirmed 1550 nm operation, up to 40 km reach, dual LC/PC connectors, 1.5W maximum power consumption, and commercial 0 to 70 degrees C operation.

Quick Specs

Parameter

Specification

Product ID

SFP-10G-ER-S

Product type

10GBASE-ER S-Class SFP+ transceiver

Module class

S-Class

Ethernet rate

10 Gigabit Ethernet

Fiber type

Single-mode fiber

SMF reference

ITU-T G.652

Wavelength

1550 nm

Operating distance

Up to 40 km

Connector

Dual LC/PC

FCoE support

Not supported

Maximum power consumption

1.5W

Operating temperature class

Commercial 0 to 70 degrees C

Application Scenarios

S-Class ER fiber bills

Specify SFP-10G-ER-S when the bill of materials calls for Cisco’s S-Class 10GBASE-ER SFP+ optic and the fiber design is a 1550 nm G.652 single-mode span in the 40 km ER class.

10G Ethernet-only ER refreshes

For replacements in Ethernet uplink designs, check that the service does not require FCoE before approving the ER-S order. Cisco calls out no FCoE support for this S-Class ER module.

Controlled ER spares

Separate SFP-10G-ER-S from SFP-10G-ER and SFP-10G-ER-I in spare pools. The receiving check should preserve the S-Class PID, commercial temperature class, and Cisco host-support record instead of grouping all 1550 nm ER optics together.

Product Comparison

Parameter

SFP-10G-ER-S

SFP-10G-ER

SFP-10G-ER-I

Product type

10GBASE-ER SFP+ transceiver

10GBASE-ER SFP+ transceiver

Multirate 10GBASE-ER SFP+ transceiver

Ordering description

10GBASE-ER SFP+ Module for SMF S-Class

10GBASE-ER SFP+ Module for SMF

Multirate 10GBASE-ER, 10GBASE-EW and OTU2e SFP+ Module for SMF, Industrial Temperature range

Module class

S-Class

Standard ER listing

Industrial-temperature listing

Supported media

SMF

Standard SMF

Standard SMF

Fiber reference

G.652

G.652

G.652

Nominal wavelength

1550 nm

1550 nm

1550 nm

Documented reach

Up to 40 km

Up to 40 km

Up to 40 km

Protocol scope

10GBASE-ER

10GBASE-ER

10GBASE-ER, 10GBASE-EW, OTU2/2e

Operating temperature class

Commercial

Commercial

Industrial

Maximum power consumption

1.5W

1.5W

1.5W

Bail latch color

Red

Red

Red

  • In a SFP-10G-ER-S vs SFP-10G-ER comparison, both entries keep the 40 km ER reach, 1550 nm wavelength, G.652 SMF medium, red latch, and commercial temperature class; the table separates SFP-10G-ER-S as the S-Class order.
  • The SFP-10G-ER-S difference from SFP-10G-ER-I is temperature and protocol scope, because SFP-10G-ER-I is the industrial-temperature multirate ER/EW/OTU2e listing while SFP-10G-ER-S is the S-Class 10GBASE-ER listing.
  • For which model to choose, use the SKU that matches the required module class, temperature class, protocol scope, and Cisco host-support entry rather than swapping ER optics by reach alone.

Selection Guide

1. Choose it for Cisco S-Class ER orders

Select SFP-10G-ER-S when the approved BOM names the Cisco S-Class 10GBASE-ER SFP+ PID and the link design fits a 1550 nm G.652 SMF path up to 40 km.

2. Keep FCoE out of the scope

Use another approved optic path when the service requirement includes FCoE, because Cisco documents no FCoE support for SFP-10G-ER-S.

3. Use ER-I for industrial sites

Move to SFP-10G-ER-I when the site needs the Cisco industrial-temperature ER line or the multirate ER/EW/OTU2e protocol scope shown in Cisco’s ordering description.

4. Check host support before release

Verify the exact Cisco platform, port, and operating-system support in Cisco compatibility documentation before adding SFP-10G-ER-S to the quote.

Ordering Checklist

Check Item

What to Confirm

Procurement Risk Controlled

No-FCoE service check

The circuit design is 10GBASE-ER Ethernet and does not require FCoE

Keeps the order inside the Cisco ER-S support note

Host matrix check

Cisco compatibility documentation covers the target device, port type, and operating system

Avoids relying on the SFP+ connector as a compatibility shortcut

Optical-loss worksheet

The 1550 nm G.652 SMF path has documented loss for the planned distance

Keeps the 40 km class tied to the actual fiber plant

Patch-cord connector check

LC/PC or LC/UPC patch cords are specified, with APC excluded

Prevents a connector mismatch during installation

Short-span attenuation check

The 15216 ATT LC 5= spare is planned when the link is shorter than 20 km

Controls receiver overload exposure on short ER links

Long-span engineering check

Any path beyond 30 km has fiber-loss notes attached to the BOM

Keeps extended ER deployment from being treated as a simple plug-in swap

Specifications

Parameter Specification Parameter Specification
Product ID SFP-10G-ER-S Product type 10GBASE-ER S-Class SFP+ transceiver
Ordering description 10GBASE-ER SFP+ Module for SMF S-Class Module class S-Class
Ethernet rate 10 Gigabit Ethernet FCoE support Not supported
Fiber type Single-mode fiber SMF reference ITU-T G.652
Wavelength 1550 nm Transmit and receive wavelength range 1530 to 1565 nm
Operating distance Up to 40 km Engineered-link note Links longer than 30 km are engineered links
Transmit power range +4.0 to -4.7 dBm Receive power range -1.0 to -15.8 dBm
Connector Dual LC/PC Patch-cord rule PC or UPC connectors supported
Bail latch color Red Maximum power consumption 1.5W
Operating temperature class Commercial Commercial operating temperature 0 to 70 degrees C
Storage temperature range -40 to 85 degrees C Minimum cabling distance 2 m
Short-link attenuation 5 dB 1550 nm fixed-loss attenuator for links under 20 km Attenuator spare part 15216 ATT LC 5=
SFP+ connector dimensions 8.5 x 13.4 x 56.5 mm SFP+ connector weight 75 grams or less
Platform support boundary Cisco compatibility documentation required for exact host and software support Standard warranty 5 years

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Need pricing, stock, or shipping details for the SFP-10G-ER-S ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email sales@layer23-switch.com for a fast quotation.

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    Nicholas Zhang
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    Delivery to our campus was right on schedule. Shipping took a couple extra days, but product itself is perfect.

    Network Eng. Team
    Posted on 25/09/2024
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    5.0

    We had a dead module from another vendor, replaced it with yours and it worked instantly. Thanks for the quick ship.

    Broadband Services
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    Needed these for a long-haul link. Signal levels are perfect. Delivery was fast.

Questions & Answers

  • What is SFP-10G-ER-S used for?

    SFP-10G-ER-S is a Cisco S-Class 10GBASE-ER SFP+ optic for 40 km single-mode fiber links where FCoE support is not required.
  • What distance does SFP-10G-ER-S support?

    SFP-10G-ER-S supports 40 km ER reach over standard G.652 SMF at 1550 nm, placing it above LR reach and below ZR reach.
  • What does S-Class mean for SFP-10G-ER-S?

    SFP-10G-ER-S is the S-Class ER option for Ethernet-focused 40 km SMF links, and Cisco notes that this S-Class module does not support FCoE.
  • Why does SFP-10G-ER-S need attenuation on short spans?

    SFP-10G-ER-S has ER optical power for 40 km SMF service, so Cisco specifies a 5 dB 1550 nm attenuator below 20 km to protect receiver levels.
  • Why choose SFP-10G-ER-S instead of SFP-10G-ER?

    SFP-10G-ER-S fits 40 km SMF Ethernet designs that accept S-Class limits, while SFP-10G-ER remains the standard non-S-Class ER module.
  • Can SFP-10G-ER-S be used for 80 km links?

    No. SFP-10G-ER-S is a 40 km ER optic; 80 km single-mode links belong to ZR optics such as SFP-10G-ZR-S or SFP-10G-ZR.
  • What connector does SFP-10G-ER-S use?

    SFP-10G-ER-S uses a dual LC/PC connector and follows Cisco patch-cord guidance for PC or UPC connectors, not APC connectors.
  • What needs checking before ordering SFP-10G-ER-S?

    Check platform support, software support, fiber loss budget, 1550 nm attenuator need, and whether the design requires FCoE before selecting SFP-10G-ER-S.

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