Is the X2-10GB-LRM compatible with 10GBASE-SR

Answered Question
Dec 29th, 2009

Is the X2-10GB-LRM compatible with 10GBASE-SR? 
I have a 6500 with X2-10GB-LRM and a server with this NIC: The 10 Gigabit Ethernet-SR PCI Express Adapter is a low-profile, high performance fiber network interface controller (NIC). The product conforms to the IEEE, 802.3ae 10GBASE-SR specification for Ethernet transmission.

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Correct Answer by habadr about 7 years 2 weeks ago

Hi Gerardo,

X2-10GB-LRM uses 1300 nm wavelength, while the SR usues 850 nm wavelength. 

If the Sever GBIC using the 850 nm wavelenght then you have to get the X2-10GB-SR GBIC.

Thanks

Hatim Badr
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Reza Sharifi Tue, 12/29/2009 - 09:24

They should be compatible.  Take a look at this table.

Also, here is the link to the entire document:

Table B-15 X2 Transceiver Cabling Specifications

X2 Transceiver Product Number
Connector Type
Wavelength (nm)
Cable Type
Core Size (microns)
Modal Bandwidth (MHz/km
Maximum Cabling Distance1

X2-10GB-SR

SC duplex

850

MMF

62.5

62.5

50.0

50.0

50.0

160

200

400

500

2000

85.3 feet (26 m)

108.3 feet (33 m)

216.5 feet (66 m)

269 feet (82 m)

984.3 feet (300 m)

X2-10GB-LR

SC duplex

1310

SMF

G.652 fiber

6.21 miles (10 km)

X2-10GB-ER

SC duplex

1550

SMF

G.652 fiber

24.84 miles (40 km)

X2-10GB-LX4

SC duplex

1310

MMF

62.5

50.0

50.0

500

400

500

984.3 feet (300 m)

787.4 feet (240 m)

984.3 feet (300 m)

X2-10GB-CX4

InfiniBand 4X

InfiniBand (copper)

49.2 feet (15 m)2

X2-10GB-LRM

SC duplex

1310

MMF

62.5

50.0

50.0

500

400

500

721.8 feet (220 m)

328 feet (100 m)

721.8 feet (220 m)

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/hardware/Chassis_Installation/Cat6500/0bcabcon.html

HTH

Reza

Correct Answer
habadr Tue, 12/29/2009 - 13:47

Hi Gerardo,

X2-10GB-LRM uses 1300 nm wavelength, while the SR usues 850 nm wavelength. 

If the Sever GBIC using the 850 nm wavelenght then you have to get the X2-10GB-SR GBIC.

Thanks

Hatim Badr

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