1000BASE - T SGMII Copper Sfp Optical Module With RJ45 For Gigabit Ethernet Switch
SGMII is the short form of Serial Gigabit Media Independent Interface. It is a type of interface between PHY and MAC, it is similar to GMII and RGMII but GMII and RGMII are parallel and they need routing clock, the PCB wiring is complicated and do not and do not suitable for backplane use. SGMII is serial so there is no need to provide other clock. MAC and PHY need CDR to recover the clock. Otherwise, SGMII is with 8B/10b code and the speed rate is 1.25Gbps.
SGMII is a serial Gigabit media independent interface, it provide full duplex BASE-T function with rate of 10/100/1000 Mbps.
SFP SGMII and SFP are very different, as for SFP SGMII, 100M rate can be used on Gigabit SFP port, but the ordinary SFP cannot, such differences will bring convenience for network upgrade to customers.
RJ45 plug in gigabit Ethernet switch is a internal interface, to connect the two gigabit Ethernet switches, it only needs one Cat5e or Cat6 LAN cable. And SFP slot in gigabit Ethernet switch complies 1000BASE-T(IEEE 802.3ab)standard and its data rate can reach 1000 Mbps. Unlike the RJ45 interface above, the SFP slot should insert SFP transceiver first then can use LAN cable ( Cat5, Cat5e or Cat6) to transmit data. And the SFP slot is with auto negotiation in data center and LAN and so on.
Product Features
1, Support 1000BASE-T operation in host systems with SGMII interface
2, Hot-pluggable SFP footprint
3, Fully metallic enclosure for low EMI
4, Low power dissipation (1.05 W typical)
5, Compact RJ-45 connector assembly
6, 100m transmission over UTP Cat5 or Cat5e Cable
7, Access to physical layer IC via 2-wire serial bus
8, Compatible with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE STD 802.3
9, Based on the SFP Multi Source Agreement (MSA).
10, suitable for applications like LAN 1000Base-T, 1.25 Gigabit, Ethernet over Cat 5 cable, Switch to Switch interface, Router/Server interface and so on.
Parameters
| High Speed Electrical Interface, Transmission Line SFP |
| Line frequency |
fL |
|
125 |
|
MHz |
5-level encoding,
per IEEE802.3
|
| Tx Output impedance |
Zout,TX |
|
100 |
|
Ohm |
Differential, for all frequencies between 1MHz and 125MHz |
| Tx Input Impedance |
Zin,RX |
|
100 |
|
Ohm |
Differential, for all
frequencies between
1MHz and 125MHz
|
| High-Speed Electrical Interface, Host-SFP |
| Single ended data input swing |
Vin |
250 |
1200 |
mV |
|
Single ended |
| Single ended data output swing |
Vout |
350 |
800 |
mV |
|
Single ended |
| Rise/Fall time |
Tr,Tf |
|
175 |
Psec |
|
20%-80% |
| Tx Input Impedance |
Zin |
|
50 |
Ohm |
|
Single ended |
| Rx Output Impedance |
Zout |
|
50 |
Ohm |
|
Single ended |
Product Tags:
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1000BASE - T SGMII Copper Sfp Optical Module With RJ45 For Gigabit Ethernet Switch Images
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