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SONET/SDH OC768/STM256 Optical Interface Specifications


Table 1 shows the SONET/SDH OC768/STM256 short reach (SR-1) optical interface specifications.

Table 1: SONET/SDH OC768/STM256 Short Reach (SR-1) Optical Interface Specifications


Short Reach (SR-1)

Optical interface


Maximum distance

1.24 miles (2 km)


300–pin multi-source agreement (MSA) ITU G.693 VSR2000–3R2

Transmitter wavelength

1530 through 1565 nm

Average launch power

0 through +3 dBm

Receiver saturation

+3 dBm

Receiver sensitivity

–6 dBm