Difference between 6ds3-smb and 6ds3-smb-b GSR line cards

[dardanarusha]

Could somebody tell us the difference between 6ds3-smb and 6ds3-smb-b GSR line cards? We cannot find anything neither on cisco.com nor on the forum.

Appreciate the help,

Dardan

[smalkeric]

There is no much difference between the two. They are connected to DS3 6 port or DS3 12 port with the router.