OC-3.3-5048A-33.333MHZ OC-3.3-50T-10.000MHZ OC-3.3-50T-35.328MHZ OC-3.3-50T-7.3728MHZ OC-3/STM-1 OC-3/STM-1-IR-1/S-1.1 OC30 OC300 OC3001 OC302