Hawk deals in a wide variety of SFP modules . Whether it is Fiber or Copper based. SFP stands for Small Factor Pluggable often known as Mini-GBIC . There are two main versions of SFP modules . They can be classified as :
Copper based SFP & Fiber based SFP
SFP Transceivers Over Copper Cabling: 1000BASE-T vs. 1000BASE-TX
| Specifications | 1000BASE-T | 1000BASE-TX |
|---|---|---|
| Standard | IEEE 802.3ab | TIA/EIA-854 |
| Specified Data Rate | 1000Mbps | 1000Mbps |
| Medium | Twisted-pair cabling (Cat5 or higher level), using four bidirectional pairs, each pair supports a data rate of 250Mbps. | Twisted-pair cabling (Cat6 or higher level), using two unidirectional pairs (one pair transmit, one receive), each pair supports a data rate of 500Mbps. |
| Specified Distance | 100 m (330 ft) | 100 m (330 ft) |
| Interface | RJ45 | RJ45 |
| Symbol Rate | Four-dimensional five-level pulse amplitude modulation (4D-PAM5, 6dB coding). | Ten-Bit Interface (TBI, 8dB/10dB coding). |
SFP Transceivers Over Optical Fiber Cabling
Transceivers that work over optical fiber consist of standard 1000BASE-SX, 1000BASE-LX and 1000BASE-LX10, and non-standard industry accepted 1000BASE-LX/LH, 1000BASE-LH, 1000BASE-EX and 1000BASE-ZX.
| SFP Version | Medium | Interface | Wavelength | Max. Distance | Notice |
|---|---|---|---|---|---|
| 1000BASE-SX | MMF* | LC duplex | 850 nm | FDDI (~ 220 m), OM1 (~ 275 m), OM2 (~ 550 m) | |
| 1000BASE-LX | MMF/SMF** | LC duplex | 1310 nm | MMF (~ 550 m), SMF (~ 5 km) | |
| 1000BASE-LX10 | SMF | LC duplex | 1310 nm | ~ 10 km | |
| 1000BASE-LX/LH | MMF/SMF | LC duplex | 1300 nm/1310 nm | MMF (~ 550 m), SMF (~ 20 km) | Mode conditioning patch cable is required when used with MMF (only FDDI, OM1 and OM2, can not use with higher level MMF). |
| 1000BASE-LH | SMF | LC duplex | 1310 nm/1550 nm | ~ 100 km | |
| 1000BASE-EX | SMF | LC duplex | 1310 nm/1550 nm | ~ 40 km | |
| 1000BASE-ZX | SMF | LC duplex | 1550 nm | ~ 70km |
*MMF = Multimode fiber. **SMF = Single-mode fiber.
Hawk deals in many brands of SFP modules/ Transceivers . Such as : FINISAR / SOURCE – PHOTONICS / ERICSSON / CISCO / HP / DELL / COMPATIBLE etc.