A broad range of industry-compliant SFP+ modules for 10 Gigabit Ethernet
deployments in diverse networking environments
Product overview
The Cisco® 10GBASE SFP+ modules (Figure 1) give you a wide variety of 10 Gigabit Ethernet connectivity options
for data center, enterprise wiring closet, and service provider transport applications.
Figure 1. Cisco 10GBASE SFP+ modules
Features and benefits
Cisco SFP+ modules offer the following features and benefits.
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Industry’s smallest 10G form factor for greatest density per chassis
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Hot-swappable input/output device that plugs into an Ethernet SFP+ port of a Cisco switch (no need to
power down if installing or replacing)
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Supports “pay-as-you-populate” model for investment protection and ease of technology migration
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Digital optical monitoring capability for strong diagnostic capabilities
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Optical interoperability with 10GBASE XENPAK, 10GBASE X2, and 10GBASE XFP interfaces on the
same link
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Cisco quality Identification (ID) feature enables a Cisco platform to identify whether the module is certified
and tested by Cisco
Cisco SFP-10G-SR-S module (S-Class)
The Cisco 10GBASE-SR module supports a link length of 26 meters on standard Fiber Distributed Data Interface
(FDDI)-grade Multimode Fiber (MMF). Using 2000 MHz*km MMF (OM3), up to 300-meter link lengths are possible.
Using 4700 MHz*km MMF (OM4), up to 400 meter link lengths are possible. SFP-10G-SR-S does not support
FCoE.
The Cisco 10GBASE-SR Module supports a link length of 26m on standard Fiber Distributed Data Interface
(FDDI)-grade Multimode Fiber (MMF). Using 2000MHz*km MMF (OM3), up to 300m link lengths are possible.
Using 4700MHz*km MMF (OM4), up to 400m link lengths are possible.
Cisco SFP-10G-SR-X module
The Cisco SFP-10G-SR-X is a multirate* 10GBASE-SR, 10GBASE-SW and OTU2/OTU2e module for extended
operating temperature range. It supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI)grade Multimode Fiber (MMF). Using 2000MHz*km MMF (OM3), up to 300m link lengths are possible. Using
4700MHz*km MMF (OM4), up to 400m link lengths are possible.
*
Except for version 1, which supports only 10GBASE-SR.
Cisco SFP-10G-LRM module
The Cisco 10GBASE-LRM Module supports link lengths of 220m on standard Fiber Distributed Data Interface
(FDDI) grade Multimode Fiber (MMF). To make sure that specifications are met over FDDI-grade, OM1 and OM2
fibers, the transmitter should be coupled through a mode conditioning patch cord. No mode conditioning patch cord
is required for applications over OM3 or OM4. For additional information on mode conditioning patch cord
requirements please see: https://www.cisco.com/en/US/prod/collateral/modules/ps5455/product_bulletin_c25-
530836.html.
The Cisco 10GBASE-LRM Module also supports link lengths of 300m on standard Single-Mode Fiber
(SMF, G.652).
Cisco SFP-10G-LR-S module (S-Class)
The Cisco 10GBASE-LR module supports a link length of 10 kilometers on standard Single-Mode Fiber (SMF)
(G.652). SFP-10G-LR-S does not support FCoE.
Cisco SFP-10G-LR module
The Cisco 10GBASE-LR Module supports a link length of 10 kilometers on standard Single-Mode Fiber
(SMF, G.652).
Cisco SFP-10G-LR-X module
The Cisco SFP-10G-LR-X is a multirate 10GBASE-LR, 10GBASE-LW, and OTU2/OTU2e module for
extended operating temperature range. It supports a link length of 10 kilometers on standard Single-Mode Fiber
(SMF, G.652).
Cisco SFP-10G-ER-S module (S-Class)
The Cisco 10GBASE-ER module supports a link length of up to 40 kilometers on SMF (G.652). SFP-10G-ER-S
does not support FCoE.
Cisco SFP-10G-ER module
The Cisco 10GBASE-ER Module supports a link length of up to 40 kilometers on standard Single-Mode Fiber
(SMF, G.652).
The Cisco 10GBASE-ZR module supports link lengths of up to about 80 kilometers on standard SMF (G.652). This
interface is not specified as part of the 10 Gigabit Ethernet standards and is, instead, built according to Cisco
specifications. SFP-10G-ZR-S does not support FCoE.
Cisco SFP-10G-ZR module
The Cisco SFP-10G-ZR is a multirate 10GBASE-ZR, 10GBASE-ZW, and OTU2/OTU2e module. It supports link
lengths of up to about 80 kilometers on standard Single-Mode Fiber (SMF, G.652). This interface is not specified
as part of the 10 Gigabit Ethernet standard and is instead built according to Cisco specifications.
Cisco FET-10G module
The Cisco FET-10G Fabric Extender Transceiver supports link lengths up to 100m on laser-optimized OM3 or OM4
multimode fiber. It is supported on fabric links from a Nexus 2000 to a Cisco parent switch only. Note this product is
not orderable individually. For more information refer to Nexus 2000 datasheet:
Cisco SFP-10G-BXD-I and SFP-10G-BXU-I for 10Km (single-fiber bidirectional applications)
The Cisco SFP-10G-BXD-I and SFP-10G-BXU-I SFPs operate on a single strand of standard SMF.
A SFP-10G-BXD-I device is always connected to a SFP-10G-BXU-I device with a single strand of standard SMF
with an operating transmission range up to 10 km.
The communication over a single strand of fiber is achieved by separating the transmission wavelength of the two
devices, as depicted in Figure 2. SFP-10G-BXD-I transmits a 1330-nm channel and receives a 1270-nm signal,
whereas SFP-10G-BXU-I transmits at a 1270-nm wavelength and receives a 1330-nm signal. Note in Figure 2 the
presence of a Wavelength-Division Multiplexing (WDM) splitter integrated into the SFP to split the 1270-nm and
1330-nm light paths.
Figure 2. Bidirectional transmission of a single strand of SMF
The SFP-10G-BXD-I and SFP-10G-BXU-I SFPs also support Digital Optical Monitoring (DOM) functions according
to the industry-standard SFF-8472 Multisource Agreement (MSA). This feature gives the end user the ability to
monitor real-time parameters of the SFP, such as optical output power, optical input power, temperature, laser bias
current, and transceiver supply voltage.
Cisco SFP-10G-BX40D-I and SFP-10G-BX40U-I (for 40Km single-fiber bidirectional
applications)
The Cisco SFP-10G-BX40D-I and SFP-10G-BX40U-I SFPs operate on a single strand of standard SMF.
A SFP-10G-BX40D-I device is always connected to a SFP-10G-BX40U-I device with a single strand of standard
SMF with an operating transmission range up to 40 km.
The communication over a single strand of fiber is achieved by separating the transmission wavelength of the two
devices. SFP-10G-BX40D-I transmits a 1330-nm channel and receives a 1270-nm signal. The SFP-10G-BX40U-I
transmits at a 1270-nm wavelength and receives a 1330-nm signal.
The SFP-10G-BX40D-I and SFP-10G-BX40U-I SFPs support Digital Optical Monitoring (DOM) functions according
to the industry-standard SFF-8472 Multisource Agreement (MSA). This feature gives the end user the ability to
monitor real-time parameters of the SFP, such as optical output power, optical input power, temperature, laser bias
current, and transceiver supply voltage.
Cisco SFP+ Twinax copper cables
Cisco SFP+ Copper Twinax (Figure 3) direct-attach cables are suitable for very short distances and offer a costeffective way to connect within racks and across adjacent racks. Cisco offers passive Twinax cables in lengths of
1, 1.5, 2, 2.5, 3 and 5 meters, and active Twinax cables in lengths of 7 and 10 meters.
Cisco SFP+ Active Optical Cables (Figure 4) are direct-attach fiber assemblies with SFP+ connectors. They are
suitable for very short distances and offer a cost-effective way to connect within racks and across adjacent racks.
Cisco offers Active Optical Cables in lengths of 1, 2, 3, 5, 7, and 10 meters.
Additional platforms may continually be added; please check the compatibility matrix for the latest information and for the Cisco
compatible operating system for each platform.
Connectors: Dual LC/PC connector (-SR, -LRM, -LR, -ER, -ZR and FET-10G).
Note: Only connections with patch cords with PC or UPC connectors are supported. Patch cords with APC
connectors are not supported. All cables and cable assemblies used must be compliant with the standards
specified in the standards section.
Minimum cabling distance for -SR, -LRM, -LR, -ER modules is 2m, according to the IEEE 802.3ae.
**
Links longer than 30km are considered engineered links as per IEEE 802.3ae.
***
Specified at transmission wavelength.
****
Requires 5 dB 1550nm fixed loss attenuator for < 20km. Attenuator is available as a spare. The part number is 15216 ATT
LC 5=.
*****
Requires 15dB attenuator if Link Distance < 5km.
Requires 10dB attenuator if Link Distance is between 5km and 25km.
Requires 5dB attenuator if Link Distance is between 25km and 45km.
******
Requires 15dB attenuator if Link Distance < 5km.
Requires 10dB attenuator if Link Distance is between 5km and 15km.
Requires 5dB attenuator if Link Distance is between 15km and 25km.
Attenuator is available as a spare. The part numbers:
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5dB - 15216 ATT LC 5=
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10dB - 15216 ATT LC 10=
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15dB - 15216 ATT LC 15=
a
- No FCoE support.
Table 2 lists the main optical characteristics for the Cisco SFP+ modules.
Table 2. Optical transmit and receive specifications
Receiver Sensitivity specified over 1530-1565nm only,
with 3dB degradation permitted from 1260-1530nm
Receiver damage threshold
+5
dBm
Receiver Overload
-7
dBm
Receiver performance at 10GE LAN and 10GE WAN rates, non-FEC application
Receiver sensitivity
-24
dBm
At BER=1E-12 with PRBS31 and 10GE frame
Chromatic Dispersion
Penalty@ 1600 ps/nm
3 dB
Receiver performance at OTU2/OTU2e rates, FEC application
Receiver sensitivity
-27
dBm
At Pre-FEC BER=1E-5 for GFEC and Pre-FEC
BER=7E-4 for EFEC with PRBS31 and OTU2 frame
Chromatic Dispersion
Penalty@ 1300 ps/nm
3 dB
* Transmitter and receiver power is in average, unless specified.
** The launch power shall be the lesser of the class 1 safety limit or the maximum receive power. Class 1 laser requirements are
defined by IEC 60825-1: 2001.
*** Both average and OMA specifications must be met simultaneously.
Table 3 details optical specifications for the Cisco SFP-10G-ZR modules.
Table 3. SFP-10G-ZR optical parameters
Note: Parameters are specified over temperature and at end of life unless otherwise noted. When shorter
distances of single-mode fiber are used (<40km), an inline optical attenuator must be used to avoid overloading
and damaging the receiver.
SFP+ MSA SFF-8431 (Optical Modules, Active Optical Cables, and Passive Twinax cables)
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SFP+ MSA SFF-8461 (Active Twinax cables)
Safety:
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Laser Class 1 21CFR-1040 LN#50 7/2001
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Laser Class 1 IEC60825-1
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Cable jacket of SFP+ copper modules is UL #E116441 Compliant
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All length SFP+ copper cables are ELV and RoHS Compliant
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Next steps
Learn more about Cisco 10GBASE SFP+ fiber modules or 10GBase SFP+ copper modules (twinax cable) by
contacting your sales representative or visiting https://www.cisco.com/en/US/products/ps6574/index.html.
For S-Class SFP+ 10 Gigabit Modules, refer to the link below: https://www.cisco.com/c/en/us/products/interfaces-