SFP-10/25G-CSR-S – 10/25GBASE-CSR SFP28 – 850nm MMF – 300 m OM3 / 400 m OM4 – 0 to 70°C

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SFP-10/25G-CSR-S Description

The SFP-10/25G-CSR-S is a Cisco 10/25GBASE-CSR SFP28 transceiver for 10G and 25G multimode fiber links within data centers and campus buildings. The module transmits at 850 nm on a dual LC/PC connector and reaches 300 m on OM3 or 400 m on OM4 and OM5 at both rates, with a 0 to 70°C case rating. At 25G that reach depends on fiber quality and needs RS-FEC on the host port, and pairing with an IEEE 10G-SR optic may overload the receiver.

Quick Specs

Parameter

Specification

Optic type

10/25GBASE-CSR SFP28

Data rate

10G or 25G

Fiber

Multimode fiber, 50.0 micron core

Wavelength

850 nm

Reach

300 m on OM3; 400 m on OM4 and OM5

Connector type

Dual LC/PC

Host FEC at 25G

RS-FEC for full reach; not required at 10G

Operating case temperature

0 to 70°C (commercial)

Maximum power consumption

1.2W

Application Scenarios

Leaf And Spine Across A Data Hall

In a data hall cabled with OM4 trunks, Nexus 9300 leaf switches reach Nexus 9500 spine switches several rows away, and the module carries those 25G links over runs of up to 400 m with RS-FEC on the switch ports.

Campus Riser On Existing OM3

A campus building with an OM3 multimode riser links Catalyst 9300 access closets to a Catalyst 9500 distribution switch, and the module runs those links at 10G or 25G over the same fiber.

Product Comparison

Parameter

SFP-10/25G-CSR-S

SFP-25G-SR-S

SFP-25G-SL

SFP-10/25G-LR-S

Data rate

10G and 25G

25G

25G

10G and 25G

Cable type

MMF

MMF

MMF

G.652 SMF

Cable distance

300 m on OM3; 400 m on OM4 and OM5

70 m on OM3; 100 m on OM4 and OM5

20 m on OM3; 30 m on OM4 and OM5

10 km

Wavelength

850 nm

850 nm

850 nm

1310 nm

Host FEC at 25G

RS-FEC for full reach; 70/100 m on OM3/OM4 with BASE-R FEC, 30/50 m without FEC

RS-FEC required

RS-FEC required

RS-FEC required

Maximum power consumption

1.2W

1.2W

1.2W

1.3W

SFP-10/25G-CSR-S reaches 300 m on OM3 and 400 m on OM4 at 10G or 25G with RS-FEC, while SFP-25G-SR-S on the same 850 nm multimode fiber is 25G only and stops at 70 m and 100 m. On hosts that run only BASE-R FEC at 25G, SFP-10/25G-CSR-S drops to the same 70 m and 100 m. SFP-25G-SL stops at 20 m on OM3 and 30 m on OM4 or OM5, so it suits only 25G runs that stay within those lengths. Links on G.652 single-mode fiber need SFP-10/25G-LR-S, which keeps both rates over 10 km at 1310 nm.

Ordering Checklist

  • Host support: The target switch, such as a Catalyst 9300, Catalyst 9500 or Nexus 9300 model, lists SFP-10/25G-CSR-S in the Cisco TMG matrix. Support for another 25G optic does not cover this PID.
  • Fiber and patch cords: The run is OM3, OM4 or OM5 multimode fiber with LC patch cords that have PC or UPC end faces. APC patch cords are not supported on this optic.
  • Far-end optic: Check the far-end optic against SFP-10/25G-CSR-S in the Cisco Optics-to-Optics interoperability matrix. Pairing with an IEEE 10G-SR optic may overload the receiver.

Specifications

Parameter Specification Parameter Specification
Product ID SFP-10/25G-CSR-S Cisco ordering description 10/25GBASE-CSR SFP28 Module for MMF
Form factor SFP28 Data rate 10G and 25G
Cable type MMF Core size 50.0 microns
Wavelength 850 nm Wavelength range 840 to 860 nm at 10G and 25G
Cable distance (OM3) 300 m at 10G and 25G; 2000 MHz*km modal bandwidth Cable distance (OM4) 400 m at 10G and 25G; 4700 MHz*km modal bandwidth
Cable distance (OM5) 400 m; 4700 MHz*km modal bandwidth Cable distance (OM2) 82 m at 10G, 70 m at 25G; 500 MHz*km modal bandwidth
25G reach condition OM3 and OM4 reach at 25G depends on fiber quality Host FEC requirement RS-FEC for full reach at 25G; FEC not required at 10G
25G reach with BASE-R FEC 70 m on OM3, 100 m on OM4 25G reach without FEC 30 m on OM3, 50 m on OM4
Connector type Dual LC/PC Patch cord connectors PC or UPC only; APC not supported
Transmit power (10G) +2.4 dBm maximum, -7.3 dBm minimum Receive power (10G) +2.4 dBm maximum, -9.9 dBm minimum
Transmit power (25G) +2.4 dBm maximum, -6 dBm minimum Receive power (25G) +2.4 dBm maximum, -8.7 dBm minimum
Interoperability Interoperating with IEEE 10G-SR may overload the receiver Max power consumption 1.2W
Pull tab / bail latch color Peach Operating case temperature 0°C to 70°C (32°F to 158°F), commercial range
Storage temperature -40°C to 85°C (-40°F to 185°F) DOM DOM hardware capable
FCoE Supported with host software support Platform support Cisco switches including Catalyst 9200 to 9610 and Nexus 9300 and 9500 families; host list in the Cisco TMG Compatibility Matrix
Standards SFF-8402, SFF-8472, IEEE 802.3-2015, IEEE P802.3by, IEEE P802.3cc Safety certifications Laser Class 1 21CFR-1040 LN#50 7/2001; Laser Class 1 IEC60825-1
Environmental compliance RoHS 6

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    Douglas Taylor
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    Delivery window was accurate. We could schedule our installation team in advance.

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    Layer23 earned repeat business from us. That doesn’t happen often.

    Procurement
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    Documentation provided was excellent. Quality assurance passed.

    Network Engineer
    Posted on 20/06/2024
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    5.0

    Great flexibility having dual rate optics. We use them for migration. Genuine Cisco.

Questions & Answers

  • Which minimum IOS XE release does the Cisco TMG matrix list for SFP-10/25G-CSR-S in a C9300-NM-2Y?

    IOS XE 16.10.1 is the minimum release for SFP-10/25G-CSR-S in a C9300-NM-2Y. The same matrix lists IOS XE 16.9.1 for C9500-24Y4C-A, C9500-24Y4C-E, C9500-48Y4C-A and C9500-48Y4C-E, IOS XE 16.11.1 for C9400-SUP-1XL-Y and IOS XE 17.12.1 for C9400-LC-24XY. Check the host release before ordering. Confirm the release on the exact host model first.
  • Does SFP-10/25G-CSR-S support FCoE?

    Yes, when the host software supports it. Cisco's SFP28 data sheet names SFP-10/25G-CSR-S in its FCoE support list. The capability depends on the host platform and release, so confirm FCoE support on the switch before you plan a storage link over this optic.
  • Does the Cisco TMG matrix show DOM and performance monitoring for SFP-10/25G-CSR-S?

    The matrix shows DOM hardware capability as Y and Performance Monitoring as N for SFP-10/25G-CSR-S. It lists a 10/25 Gbps data rate on duplex multimode fiber in the SFP28 form factor. The Performance Monitoring value is N in all 229 rows, so do not plan on that feature with this optic.
  • Can SFP-10/25G-CSR-S connect to a QSFP-100G-SR4-S port at 25G?

    Yes, over a third-party multimode breakout cable at 25G. Cisco's 25G at-a-glance table lists QSFP-40G-SR4-S and QSFP-100G-SR4-S as hosts for SFP-10/25G-CSR-S and footnotes the compatibility. Set the same FEC mode on both ends of the link before you bring it up. Confirm both ends before you cable it.

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DataSheet Downloads

  • SFP-10-25G-CSR-S Datasheet