Nortelco Electronics and Tektronix recommend the following equipment when using Sonet/SDH:

Product Description
Oscilloscope DPO7254 or higher
Oscilloscope MSO/DPO4000 Series (with DPO4USB module)
Signal Generator AWG5000 / AWG7000 Series Arbitrary Waveform Generators
Signal Generator  DTG5334, DTG5274 or DTG5078 Data Generator with a DTGM21 Output module
Test Fixture TDSUSBF fixture
Application Software TDSUSB2 Compliance Test Software
Differential Probes TDP1500, TDP3500, P6248, or P6330Differential Probe
Single-Ended Probes TAP1500 or P6245 Active Single-Ended Probe