--  LAN 1000Base-T
--  1.25 Gigabit Ethernet over Cat 5 cable
-- Switch to Switch interface
--  Router/Server interface
SFP-TX  1000BASE-T Copper Small Form Pluggable (SFP) are based on the
SFP Multi Source Agreement (MSA).    It is compatible with the Gigabit Ethernet and
1000BASE-T standards as specified in IEEE Std 802.3

-- Support 1000BASE-T operation in
-- host systems with SGMII interface
--  Up to 1.25Gbps bi-direction data  links
--   Hot-pluggable SFP footprint
--   Fully metallic enclosure for low EMI
--   Low power dissipation (1.05 W  typical)
--   Compact RJ-45 connector  assembly
--  100m transmission over unshielded  twisted pair(UTP) Category 5 Cable
--  Access to physical layer IC via  2-wire serial bus

Part No    Data rate  Wavelength  Distance  Source  TX power(dbm)  RX Sens(dbm)  Others

GLC-T-A    1000M                  100m                                           ROHS

GLC-T-B    10/100/1000M           100m                                           ROHS

GBIC-T     1000M                  100m                                           ROHS