• Compliant with MSA SFP specification
• Compliant with IEEE 802.3 1000BASE-T specification
• Supports 1000BASE-X without clock with 1000BASE-X auto-negotiation to copper
• Hot-pluggable
• Metal enclosure for lower EMI
• Compatible with CAT 5 cable in excess of 100M in length
• +3.3V Single power supply
• Compact RJ-45 connector assembly
• SFP 1000BASE-X Auto Negotiation Bypass Mode
• With 9/125 µm single mode fiber (SMF)
• Operate data rate:1.25Gb/s;
• operate temperature Standard :0 to +70°C
• Complies with RoHS directive

• Fiber Channel
• Gigabit Ethernet
• Switches
• Routers
• Hubs

SFP-1.25G-T Copper Small Form Pluggable (SFP)transceivers is high performance, cost effective module compliant with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE 802. 3-2002 and IEEE 802.3ab, which supporting 1000Mbps data- rate up to 100 meters reach over unshielded twisted-pair category 5 cables.

The module supports1000 Mbps full duplex data-links with 5-level Pulse Amplitude Modulation(PAM) signals. All four pairs in the cable are used with symbol rate at 250Mbps on each pair. The module provides standard serial ID information compliant with SFP MSA, which can be accessed with address of A0h via the 2wire serial CMOS EEPROM protocol. The physical IC can also be accessed via 2wire serial bus at address ACh.

The host-side of the SFP-1.25G-T conforms to the mechanical specifications outlined in the SFP MSA1.
The front portion of the SFP (part extending beyond the face plate of the host) is larger to accommodate
the RJ-45 connector.