SONET/SDH OC12/STM4 Optical Interface Specifications
SONET/SDH OC12/STM4 Short Reach (SR-1) Specifications
Table 1 shows the SONET/SDH OC12/STM4 short reach (SR-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 |
SONET/SDH OC12/STM4 Intermediate Reach (IR-1) Specifications
Table 2 shows the SONET/SDH OC12/STM4 short reach (IR-1) optical interface specifications.
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 |
SONET/SDH OC12/STM4 Long Reach (LR-1) Specifications
Table 3 shows the SONET/SDH OC12/STM4 short reach (LR-1) optical interface specifications.
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 |
SONET/SDH OC12/STM4 Long Reach (LR-2) Specifications
Table 4 shows the SONET/SDH OC12/STM4 short reach (LR-2) optical interface specifications.
Table 4: SONET/SDH OC12/STM4 Long Reach (LR-2) Optical Interface Specifications
Parameter | Long Reach (LR-2) |
|---|---|
Optical interface | Single-mode |
Maximum distance | SMF cable: 49.70 miles (80 km) |
Standard | Telcordia GR-253 |
Transmitter wavelength | 1480 through 1580 nm |
Average launch power | –3 through 2 dBm |
Receiver saturation | –8 dBm |
Receiver sensitivity | –28 through –8 dBm |