IBM SAN24B-4 Installation, Service And User Manual page 68

Negotiation to 1 Gbps is not supported. Since 8 and 16 Gbps equipment is more
sensitive, the existing cable plant may require additional attention to cable care
after upgrading from 2 or 4 Gbps fibre. In a few cases, the Tx power of the switch
can be higher than the connected equipment. In nearly all of those cases, there is
enough attenuation in the existing cable plant so as not to require additional
attenuation. The common 2 Gbps SFP Rx maximum power levels are listed in
Table 17 and can be used as a quick method to relieve concerns of over saturation.
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SAN24B-4 Express Installation, Service, and User Guide
Table 17. Maximum receive power of 2 Gbps LWL SFPs
Vendor Part number
Avago AFCT-57M5ATPZ
Finisar FTLF1319P1xTL
Finisar FTRJ1319P1xTL
JDSU JSH-12L1DD1
Hitachi Cable HTR6517
Optoway SPS-9110FG
Optoway SPS-9110AFG
JDSU JSH-21L3AR3
E20 ES212-LP3TA
Max Receive Power
Description (dB)
2 Gbps 10 km SFP -3 dB
2 Gbps 10 km SFP 0 dB
2 Gbps 10 km SFP 0 dB
2 Gbps 10 km SFP 1 dB
2 Gbps 10 km SFP -3 dB
2 Gbps 10 km SFP -3 dB
2 Gbps 10 km SFP -3 dB
2 Gbps 10 km SFP 1 dB
2 Gbps 10 km SFP -3 dB