The range of Cisco® 10GBASE XENPAK modules offers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications (Figure 1).
Figure 1. Cisco 10GBASE XENPAK Modules
Main features of Cisco 10GBASE XENPAK modules include:
• Supports 10GBASE Ethernet
• Hot-swappable input/output device plugs into an Ethernet XENPAK 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 feature that enables a Cisco switch or router to identify whether the module is a Cisco certified and tested XENPAK module
Cisco offers eight modules in this product family:
• Cisco XENPAK-10GB-CX4: Supports link lengths of up to 15m on CX4 cable.
• Cisco XENPAK-10GB-LX4: Supports link lengths of 300m on standard Fiber Distributed Data Interface (FDDI) grade multimode fiber (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: http://www.cisco.com/en/US/prod/collateral/modules/ps5455/product_bulletin_c25-530836.html.
• Cisco XENPAK-10GB-LRM: Supports link lengths 220m on standard 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: http://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 XENPAK-10GB-SR: Supports a link length of 26m on standard FDDI grade MMF. Up to 300m link lengths are possible when using 2000 MHz/km MMF (OM3).
• Cisco XENPAK-10GB-LR / -LR+: Supports a link length of 10 km on standard single-mode fiber (SMF) (G.652).
• Cisco XENPAK-10GB-ER / -ER+: Supports a link length of up to 40 km on SMF (G.652).
• Cisco XENPAK-10GB-ZR: Supports link lengths of up to about 80 km on SMF. This interface is not part of the 10 Gigabyte Ethernet standard but is built according to Cisco optical specifications.
• Cisco XENPAK-10GB-LW (WAN PHY): Supports a link length of 10 km on standard single-mode fiber (SMF) (G.652). WAN-PHY is intended to allow the transport of 10 Gigabit Ethernet over a traditional SONET/SDH infrastructure by rendering 10 Gigabit Ethernet compatible with SONET STS-192c format and data rate, as defined by ANSI, as well as the SDH VC-4-64c container specified by ITU.
Technical Specifications
Platform Support
Cisco XENPAK modules are supported on Cisco switches and routers. For more details, refer to the document Cisco XENPAK/X2 Compatibility Matrix.
Connectors and Cabling
Connectors:
• XENPAK-10GB-CX4: InfiniBand 4x connector
• All others: Dual SC/PC connector
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.
Table 1 provides cabling specifications for the Cisco XENPAK modules.
Table 1. XENPAK Port Cabling Specifications
Product
Wavelength (nm)
Cable Type
Core Size (micron)
Modal Bandwidth (MHz/km)
Cable Distance*
Cisco XENPAK-10GB-CX4
-
CX4 (copper)
-
-
15m
Cisco XENPAK-10GB-LX4
1310
MMF
62.5
50.0
50.0
500
400
500
300m
240m
300m
Cisco XENPAK-10GB-LRM
1310
MMF
62.5
50.0
50.0
500
400
500
220m
100m
220m
SMF
G.652
-
300m
Cisco XENPAK-10GB-SR
850
MMF
62.5
62.5
50.0
50.0
50.0
160
200
400
500
2000
26m
33m
66m
82m
300m
Cisco XENPAK-10GB-LR / -LR+
1310
SMF
G.652**
-
10 km
Cisco XENPAK-10GB-LW
1310
SMF
G.652**
-
10 km
Cisco XENPAK-10GB-ER / -ER+***
1550
SMF
G.652**
-
40 km****
Cisco XENPAK-10GB-ZR
1550
SMF
Operates on any SMF type
-
80 km
* Minimum cabling distance for optical XENPAK modules (-LX4, -SR, -LR, -ER) is 2m, according to the IEEE 802.3ae standard, and minimum cabling distance for -LRM modules is 0.5m, according to IEEE 802.3aq standard.
** Data based on standard G.652 SMF. Even though dispersion-shifted fiber enables reducing signal dispersion to travel longer distances, the signal attenuation still limits its distance.
*** Requires 5 dB 1550 nm fixed loss attenuator for < 20 km. Attenuator is available as a spare. The part number is WS-X6K-5DB-ATT=.
**** Links longer than 30 km are considered engineered links.
Standards
• IEEE 802.3ae (-LX4, -SR, -LR, -LW, -ER)
• IEEE 802.3aq (-LRM)
• IEEE 802.3ak (-CX4)
Table 2 shows the main optical characteristics for the Cisco XENPAK modules. The Cisco XENPAK-10GB-CX4 is not an optical module and therefore is not listed in the table.
Table 2. Optical Transmit and Receive Specifications for IEEE 802.3 standard compliant modules
Product
Type
Transmit Power (dBm)
Receive Power (dBm)
Transmit and Receive Wavelength range (nm)
Maximum
Minimum
Maximum
Minimum
Transmit
Receive
Cisco XENPAK-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 XENPAK-10GB-LRM
10GBASE-LRM 1300nm MMF
0.5
-6.5
0.5
-8.4 (in average) and -6.4 (in OMA)****
1260 to 1355
Cisco XENPAK-10GB-SR
10GBASE-SR
850 nm MMF
-1.2*
-7.3
-1.0
-9.9
840 to 860
Cisco XENPAK-10GB-LR / -LR+**
10GBASE-LR
1310 nm SMF
0.5
-8.2
0.5
-14.4
1260 to 1355
1260 to 1565*****
Cisco XENPAK-10GB-LW
10GBASE-LW
1310 nm SMF
0.5
-8.2
0.5
-14.4
1260 to 1355
1260 to 1565*****
Cisco XENPAK-10GB-ER / -ER+***
10GBASE-ER
1550 nm SMF
4
-4.7
-1.0
-15.8
1530 to 1565
1260 to 1565*****
* 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.
** WS-G6488 has the same optical parameters as XENPAK-10GB-LR.
*** WS-G6483 has the same optical parameters as XENPAK-10GB-ER.
**** Both average and OMA specifications need to be met simultaneously
***** Even though the receiver can tolerate a wide wavelength range, the specifications are guaranteed for a signal within the transmit wavelength range
Table 3 details optical specifications for the Cisco XENPAK-10GB-ZR modules.
Table 3. XENPAK-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
OMI
9
dB
Transmitter optical output power
Pout
0
4.0
dBm
Average power coupled into single-mode fiber
Receiver
Receiver optical input wavelength
in
1530
1565
nm
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
Dimensions (DxWxH): 4.76" x 1.42" x 0.47" (121 x 36 x 18 mm). Cisco XENPAK modules typically weigh less than 300 g.
Environmental Conditions and Power Requirements
• Operating temperature range is between 0 and 40°C (32 to 104°F); storage temperature range is -40 to 75°C (-40 to 167°F).
• Maximum power consumption per Cisco XENPAK module is 8W.
Warranty
• Standard warranty: 90 days
• Extended warranty (optional): Cisco XENPAK modules can be covered in a Cisco SMARTnet® support contract for the Cisco switch or router chassis
Table 4 provides the ordering information for Cisco XENPAK modules and related cables.
Ordering Information
Table 4. Ordering Cisco XENPAK Modules and Respective Cables
Description
Product Number
XENPAK modules
Cisco 10GBASE-CX4 XENPAK Module for CX4 cable
XENPAK-10GB-CX4
Cisco 10GBASE-LX4 XENPAK Module for MMF
XENPAK-10GB-LX4
Cisco 10GBASE-LRM XENPAK Module for MMF
XENPAK-10GB-LRM
Cisco 10GBASE-SR XENPAK Module for MMF
XENPAK-10GB-SR
Cisco 10GBASE-LR XENPAK Module for SMF
XENPAK-10GB-LR
Cisco 10GBASE-LR XENPAK Module for SMF for the CRS-1
CRS-XENPAK10GB-LR
Cisco 10GBASE-LR XENPAK Module for SMF for the 3750
