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Figure 1. Cisco optical Gigabit Ethernet SFP
Figure 2. Cisco 1000BASE-T Copper SFP
Figure 3. Cisco 2-channel 1000BASE-BX optical SFP
1000BASE-T SFP for Copper Networks
The 1000BASE-T SFP operates on standard Category 5 unshielded twisted pair copper cabling of up to 100m (328 ft) link length. Cisco 1000BASE-T SFP modules support 10/100/1000 autonegotiation and Auto MDI/MDIX.1000BASE-SX SFP for Multimode Fiber Only
The 1000BASE-SX SFP, compatible with the IEEE 802.3z 1000BASE-SX standard, operates on legacy 50 μm multimode fiber links up to 550 m and on 62.5 μm Fiber Distributed Data Interface (FDDI)-grade multimode fibers up to 220 m. It can support up to 1km over laser-optimized 50 μm multimode fiber cable.1000BASE-LX/LH SFP for Both Multimode and Single-Mode Fibers
The 1000BASE-LX/LH SFP, compatible with the IEEE 802.3z 1000BASE-LX standard, operates on standard single-mode fiber-optic link spans of up to 10 km and up to 550 m on any multimode fibers. When used over legacy multimode fiber type, the transmitter should be coupled through a mode conditioning patch cable. For details on this implementation, refer toTable 1. SFP Port Cabling Specifications
Product | Wavelength (nm) | Fiber Type | Core Size (μm) | Modal Bandwidth (MHz* Km)*** | Operating Distance (m) |
1000BASE-SX | 850 | MMF | 62.5 | 160 (FDDI-grade) | 220 (722 ft) |
62.5 | 200 (OM1) | 275 (902 ft) | |||
50 | 400 (400/400) | 500 (1,640 ft) | |||
50 | 500 (OM2) | 550 (1,804 ft) | |||
50 | 2000 (OM3) | 1000 (3281 ft) | |||
1000BASE-LX/LH | 1310 | MMF* | 62.5 | 500 | 550 (1,804 ft) |
50 | 400 | 550 (1,804 ft) | |||
50 | 500 | 550 (1,804 ft) | |||
SMF | -** | - | 10,000 (32,821 ft) |
Table 2. Main Optical Parameters
Product Number | Temperature Range | DOM |
GLC-SX-MM | COM | No |
GLC-LH-SM | COM | No |
GLC-ZX-SM | COM | Yes |
GLC-BX-U | COM | Yes |
GLC-BX-D | COM | Yes |
GLC-2BX-D | COM | Yes |
GLC-T | COM | n/a |
SFP-GE-T | EXT | n/a |
SFP-GE-S | EXT | Yes |
SFP-GE-L | EXT | Yes |
SFP-GE-Z | EXT | Yes |
GLC-SX-MMD | EXT | Yes |
GLC-LH-SMD | EXT | Yes |
Table 3. Temperature Range and DOM Support
Product Description | Product Number |
1000BASE-T standard | GLC-T |
1000BASE-SX short wavelength; without DOM | GLC-SX-MM |
1000BASE-LX/LH long-wavelength/long haul; without DOM | GLC-LH-SM |
1000BASE-ZX extended distance | GLC-ZX-SM |
1000BASE-BX10-D downstream bidirectional single fiber; with DOM | GLC-BX-D |
2-channel 1000BASE-BX10-D downstream bidirectional single fiber; with DOM | GLC-2BX-D |
1000BASE-BX10-U upstream bidirectional single fiber; with DOM | GLC-BX-U |
1000BASE-T NEBS 3 ESD | SFP-GE-T |
1000BASE-SX short wavelength; with DOM | SFP-GE-S GLC-SX-MMD |
1000BASE-LX/LH long-wavelength; with DOM | SFP-GE-L GLC-LH-SMD |
1000BASE-EX long-wavelength; with DOM | GLC-EX-SMD |
1000BASE-ZX extended distance; with DOM | SFP-GE-Z GLC-ZX-SMD |
*NEW ORIGINAL* CISCO SFP-GE-T 1000BASE-T SFP (NEBS 3 ESD)