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The Cisco® 10GBASE X2 modules (Figure 1) offer customers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications.
Cisco 10GBASE X2 and Xenpak modules
Main features of Cisco 10GBASE X2 modules include:
● Support 10GBASE Ethernet
● Hot-swappable input/output device plugs into an Ethernet X2 port of a Cisco switch or router to link the port with the network
● Provides flexibility of interface choice
● Supports “pay-as-you-populate” model
● Supports the Cisco quality identification (ID) feature that enables a Cisco switch or router to identify whether the module is certified and tested by Cisco
● Has optical interoperability with respective 10GBASE Xenpak, 10GBASE XFP and 10GBASE SFP+ modules on the same link
Cisco X2-10GB-CX4
The Cisco 10GBASE-CX4 Module supports link lengths of up to 15m on CX4 cable.
Cisco X2-10GB-T
The Cisco 10GBASE-T Module supports link lengths of up to 100m on CAT6A or CAT7 copper cable.
Cisco X2-10GB-LRM
The Cisco 10GBASE-LRM Module supports link lengths of 220m on standard Fiber Distributed Data Interface (FDDI) grade multimode fiber (MMF). To ensure 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. 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 X2-10GB-LX4
The Cisco 10GBASE-LX4 Module supports link lengths of 300m on standard FDDI grade MMF. To ensure that specifications are met, the transmitter output should be coupled through a mode conditioning patch cord. 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.
Cisco X2-10GB-SR
The Cisco 10GBASE-SR Module supports a link length of 26m on standard FDDI grade MMF. Using 2000 MHz*km MMF (OM3), up to 300m link lengths are possible. Using 4700 MHz*km MMF (OM4), up to 400m link lengths are possible.
Cisco X2-10GB-LR
The Cisco 10GBASE-LR Module supports a link length of 10 kilometers on standard single-mode fiber (SMF, G.652).
Cisco X2-10GB-ER
The Cisco 10GBASE-ER Module supports a link length of up to 40 kilometers on standard single-mode fiber (SMF, G.652).
Cisco X2-10GB-ZR
Supports link lengths of up to about 80 km on SMF. This interface is not part of the 10 Gigabit Ethernet standard but is built according to Cisco optical specifications.
Platform Support
Cisco X2 modules are supported on Cisco switches and routers. For more details, refer to the document Cisco Xenpak/X2 Compatibility Matrix.
Connectors and Cabling
Connectors: Dual SC/PC connector (-SR, -LR, -LRM, -LX4, -ER, -ZR); InfiniBand 4x connector (-CX4); RJ-45 connector (-T).
Note: For optical X2 modules, 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.
Table 1 provides cabling specifications for the Cisco X2 modules.
Table 1. X2 Port Cabling specifications
Cisco X2 |
Wavelength (nm) |
Cable Type |
Core Size (Microns) |
Modal Bandwidth (MHz*km) |
Cable Distance* |
Cisco X2-10GB-CX4 |
- |
CX4 (copper) |
- |
- |
15m |
Cisco X2-10GB-T |
- |
CAT6A/CAT7 (copper) |
- |
- |
100m |
Cisco X2-10GB-SR |
850 |
MMF |
62.5 62.5 50.0 50.0 50.0 50.0 |
160 (FDDI-grade) 200 (OM1) 400 500 (OM2) 2000 (OM3) 4700 (OM4) |
26m 33m 66m 82m 300m 400m |
Cisco X2-10GB-LRM |
1310 |
MMF |
62.5 50.0 50.0 |
500 400 500 |
220m 100m 220m |
SMF |
G.652 |
- |
300m |
||
Cisco X2-10GB-LX4 |
1310 |
MMF |
62.5 50.0 50.0 |
500 400 500 |
300m 240m 300m |
Cisco X2-10GB-LR |
1310 |
SMF |
G.652 |
- |
10 km |
Cisco X2-10GB-ER** |
1550 |
SMF |
G.652 |
- |
40 km*** |
● IEEE 802.3ae (-LR, -SR, -LX4, -ER)
● IEEE 802.3ak (-CX4)
● IEEE 802.3aq (-LRM)
● IEEE 802.3an (-T)
Table 2 shows the main optical characteristics for the Cisco X2 module. The Cisco X2-10GB-CX4 and X2-10GB-T are not optical modules and therefore are not listed in Table 2.
Table 2. Optical transmit and receive specifications
Product |
Type |
Transmit Power (dBm)* |
Receive Power (dBm)* |
Transmit and Receive Wavelength Range (nm) |
|||
Maximum |
Minimum |
Maximum |
Minimum |
Transmit |
Receive |
||
Cisco X2-10GB-SR |
10GBASE-SR 850 nm MMF |
-1** |
-7.3 |
-1.0 |
-9.9 |
840 to 860 |
|
Cisco X2-10GB-LRM |
10GBASE-LRM 1310 nm MMF and SMF |
0.5 |
-6.5 |
0.5 |
-8.4 (in average) and -6.5 (in OMA)*** |
1260 to 1355 |
|
Cisco X2-10GB-LX4 |
10GBASE-LX4 WWDM 1300 nm MMF |
-0.5 per lane |
-6.75 per lane in OMA |
-0.5 per lane |
-14.25 per lane in OMA |
Four lanes; overall range: 1269 to 1356 |
|
Cisco X2-10GB-LR |
10GBASE-LR 1310 nm SMF |
0.5 |
-8.2 |
0.5 |
-14.4 |
1260 to 1355 |
1260 to 1565**** |
Cisco X2-10GB-ER |
10GBASE-ER 1550 nm SMF |
4.0 |
-4.7 |
-1.0 |
-15.8 |
1530 to 1565 |
1260 to 1565**** |
Table 3 details optical specifications for the Cisco X2-10GB-ZR modules.
Table 3. X2-10GB-ZR optical parameters
Parameter |
Symbol |
Minimum |
Typical |
Maximum |
Units |
Notes and Conditions |
Transmitter |
||||||
Transmitter wavelength |
|
1530 |
|
1565 |
nm |
|
Side-mode suppression ratio |
SMSR |
30 |
|
|
dB |
|
Transmitter extinction ratio |
|
9 |
|
|
dB |
|
Transmitter optical output power |
Pout |
0 |
|
4.0 |
dBm |
Average power coupled into single-mode fiber |
Receiver |
||||||
Receiver optical input wavelength |
|
1530 |
|
1565 |
nm |
The receiver can tolerate a wavelength range from 1260 to 1565, but the specifications are guaranteed for a signal received with the transmit wavelength range |
Receiver damage threshold |
|
|
|
-1 |
dBm |
|
Dispersion tolerance |
|
0 |
|
1600 |
ps/nm |
|
Optical input power |
Pin |
-24.0 |
|
-7.0 |
dBm |
At bit error rate (BER) = 10e-12 with IEEE 802.3 test pattern |
Dispersion power penalty at 1600 ps/nm |
|
|
|
3 |
dB |
At bit error rate (BER) = 10e-12 with IEEE 802.3 test pattern |
Note: Parameters are specified over temperature and at end of life unless otherwise noted. When shorter distances of single-mode fiber are used, an inline optical attenuator must be used to avoid overloading and damaging the receiver.
● Dimensions (D x W x H): 91mm x 36mm x 13.46mm. Cisco X2s typically weigh under 300 grams
● Environmental Conditions and Power Requirements
● The operating temperature range is between 0 and 70°C (32 to 158°F); storage temperature range is -40 to 85°C (-40 to 185°F)
● The maximum power consumption per Cisco X2 module is 4W
● Standard warranty: 5 years
● Expedited replacement available via a Cisco SMARTnet® Service support contract
Table 4 provides the ordering information for Cisco X2 modules and related cables.
Table 4. Ordering Cisco X2 and respective cables
Description |
Product Number |
X2 Modules |
|
Cisco 10GBASE-LR X2 Module for SMF |
X2-10GB-LR |
Cisco 10GBASE-CX4 X2 Module for CX4 (copper) cable |
X2-10GB-CX4 |
Cisco 10GBASE-SR X2 Module for MMF |
X2-10GB-SR |
Cisco 10GBASE-LRM X2 Module for MMF |
X2-10GB-LRM |
Cisco 10GBASE-LX4 X2 Module for MMF |
X2-10GB-LX4 |
Cisco 10GBASE-ER X2 Module for SMF |
X2-10GB-ER |
Cisco 10GBASE-ZR X2 Module for SMF |
X2-10GB-ZR |
Cisco 10GBASE-T X2 Module for CAT6A/CAT7 copper cable |
X2-10GB-T |
Cables |
|
Mode conditioning patch cable 62.5u, dual SC connectors |
CAB-GELX-625= |
Mode conditioning patch cable 50u, dual SC connectors |
CAB-MCP50-SC= |
1m cable for 10GBase-CX4 module |
CAB-INF-28G-1= |
5m cable for 10GBase-CX4 module |
CAB-INF-28G-5= |
10m cable for 10GBase-CX4 module |
CAB-INF-28G-10= |
15m cable for 10GBase-CX4 module |
CAB-INF-26G-15= |
Regulatory and standards compliance
Standards:
● GR-20-CORE: Generic Requirements for Optical Fiber and Optical Fiber Cable
● GR-326-CORE: Generic Requirements for Single-Mode Optical Connectors and Jumper Assemblies
● GR-1435-CORE: Generic Requirements for Multifiber Optical Connectors
Safety:
● Laser Class 1 21CFR-1040 LN#50 7/2001
● Laser Class 1 IEC60825-1
Cisco environmental sustainability
Information about Cisco’s environmental sustainability policies and initiatives for our products, solutions, operations, and extended operations or supply chain is provided in the “Environment Sustainability” section of Cisco’s Corporate Social Responsibility (CSR) Report.
Reference links to information about key environmental sustainability topics (mentioned in the “Environment Sustainability” section of the CSR Report) are provided in the following table:
Sustainability topic |
Reference |
Information on product material content laws and regulations |
|
Information on electronic waste laws and regulations, including products, batteries, and packaging |
Cisco makes the packaging data available for informational purposes only. It may not reflect the most current legal developments, and Cisco does not represent, warrant, or guarantee that it is complete, accurate, or up to date. This information is subject to change without notice.
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For more information about Cisco 10GBASE-X2 modules, contact your sales representative or visit: https://www.cisco.com.