The Ciena 133-8ST1-G00002 Optical Transceiver Module is a 1310 nm, single‑mode transceiver designed for OC-48 SR-1 links, enabling short‑reach optical transport over SMF fiber. It is described in vendor listings as a 133-8ST1 series transceiver labeled for OC‑48 SR‑1 operation and identified by the part numbers 133-8ST1-G00 and 133-8ST1-G00002 as an OPT (optical) module. This device is positioned for upgrading or replacing OC‑48 SR‑1 interfaces in SONET/SDH networks, supporting 1310 nm operation on single‑mode fiber for reliable OC‑48 short‑haul connectivity.
