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.
- Table 1 shows the SONET/SDH OC12/STM4 short reach (SR-1) optical interface specifications.
- Table 2 shows the SONET/SDH OC12/STM4 intermediate reach (IR-1) optical interface specifications.
- Table 3 shows the SONET/SDH OC12/STM4 long reach (LR-1) optical interface specifications.
Table 1: 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 2: 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 3: 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 |
