2012/1/26 Pierre-Yves Maunier <pierre-yves@maunier.fr>

2012/1/26 Holmes,David A <dholmes@mwdh2o.com>

I have found that -5dB or -10dB attenuators must be used on the send or

...

receive strands between Cisco LX connected switches at relatively short distances of < 1 km over standard singlemode fiber.

Other Vendors' SFPs rated up to 25 km do not need attenuators at distances <1 km.

Cisco standard LX TX between -3dBm and -9dBm RX sensitivity is from -9dBm to -19dBm

Oups typo, RX from -3 dBm to -19 dBm -- Pierre-Yves Maunier