ETSBL1GH0D-45/54: SFP 1.25Gb/s Wavelenght 1490nm/1550nm Distance 200km LC BiDi (Simplex) (A)
ETSBL1GH0D-54/45: SFP 1.25Gb/s Wavelenght 1550nm/1490nm Distance 200km LC BiDi (Simplex) (B)