SONET/SDH OC12/STM4 Optical Interface Specifications

The following SONET/SDH OC12/STM4 standards are supported on M Series, MX Series, and T Series routers. To determine which standards are supported for a transceiver on a particular device and router, see the “Cables and connectors” section for each device in the PIC guide for your router or the MX Series 3D Universal Edge Routers Line Card Guide..

Table 29: SONET/SDH OC12/STM4 Short Reach (SR-1) Optical Interface Specifications

Parameter

Short Reach (SR-1)

Optical interface

Single-mode

Maximum distance

SMF cable: 1.24 miles/2 km

Standard

Telcordia GR-253

Transmitter wavelength

1261 through 1360 nm

Average launch power

–15 through –8 dBm

Receiver saturation

–8 dBm

Receiver sensitivity

–23 dBm

Table 30: SONET/SDH OC12/STM4 Intermediate Reach (IR-1) Optical Interface Specifications

Parameter

Intermediate Reach (IR-1)

Optical interface

Single-mode

Maximum distance

SMF cable: 9.3 miles/15 km

Standard

Telcordia GR-253

Transmitter wavelength

1274 through 1356 nm

Average launch power

–15 through –8 dBm

Receiver saturation

–8 dBm

Receiver sensitivity

–28 dBm

Table 31: SONET/SDH OC12/STM4 Long Reach (LR-1) Optical Interface Specifications

Parameter

Long Reach (LR-1)

Optical interface

Single-mode

Maximum distance

SMF cable: 24.85 miles/40 km

Standard

Telcordia GR-253

Transmitter wavelength

1280 through 1335 nm

Average launch power

–3 through +2 dBm

Receiver saturation

–8 dBm

Receiver sensitivity

–28 dBm

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