E1MG-SX

1000BASE-SX SFP operates on ordinary multimode fiber optic
link spans of up to 550 meters in length

E1MG-LX

1000BASE-LX/LH SFP operates on ordinary single-mode fiber
optic link spans of up to 10,000 meters in length

E1MG-LHA/E1MG-LHB

E1MG-LHA
1000BASE-ZX SFP operates on ordinary single-mode fiber optic
link spans of up to 70 kilometers (km) in length
E1MG-LHB
1000BASE-ZX SFP operates on ordinary single-mode fiber optic
link spans of up to 120 kilometers (km) in length

E1MG-TX

1000BASE-T SFP operates on standard Category 5 wiring of up to 100m link length