SONET/SDH OC192/STM64 Optical Interface Specifications

The SONET/SDH OC192/STM64 standards are supported on M120 routers, M320 routers, MX Series routers, and T Series routers.

To determine which transceivers support the SONET/SDH OC192/STM64 standard, see Supported Network Interface Standards by Transceiver. The Cables and connectors section in the description for each MIC or PIC lists which standards and transceivers are supported for that device.

The specifications are organized by distance supported.

SONET/SDH OC192/STM64 Very Short Reach (VSR)
SONET/SDH OC192/STM64 Short Reach (SR-1)
SONET/SDH OC192/STM64 Short Reach (SR-2)
SONET/SDH OC192/STM64 Intermediate Reach (IR-2)
SONET/SDH OC192/STM64 Long reach (LR-1)
SONET/SDH OC192/STM64 Long reach (LR-2)
SONET/SDH OC192/STM64 Very Short Reach (VSR)

Table 1 shows the SONET/SDH OC192/STM64 very short reach (VSR) optical interface specifications.

Table 1: SONET/SDH OC192/STM64 Very Short Reach (VSR 1) Optical Interface Specifications

Parameter
Very Short Reach (VSR)
Optical interface
Multimode
Maximum distance
MMF cable: 984.25 feet (300 m)
Standard
OIF VSR4–1
Transmitter wavelength
830 through 860 nm
Average launch power
–10 through –3 dBm
Receiver saturation
–3 dBm
Receiver sensitivity
–16 dBm
SONET/SDH OC192/STM64 Short Reach (SR-1)

Table 2 shows the SONET/SDH OC192/STM64 short reach (SR-1) optical interface specifications.

Note: The SR-2 interface is optically compatible with SR-1 (1310 nm) inputs. Optical characteristics and transmission distance are limited to worst-case specifications for SR-1.
Table 2: SONET/SDH OC192/STM64 Short Reach (SR-1) Optical Interface Specifications

Parameter
Short Reach (SR-1)
Optical interface
Single-mode
Maximum distance
SMF cable: 6.21 miles (10 km)
Standard
Telcordia GR-253 OC192 SR1
Transmitter wavelength
1290 nm through 1330 nm
Average launch power
–6 through –1 dBm
Receiver saturation
–1.0 dBm
Receiver sensitivity
–11 dBm
SONET/SDH OC192/STM64 Short Reach (SR-2)

Table 3 shows the SONET/SDH OC192/STM64 short reach (SR-2) optical interface specifications.

Note: The SR-2 interface is optically compatible with SR-1 (1310 nm) inputs. Optical characteristics and transmission distance are limited to worst-case specifications for SR-1.
Table 3: SONET/SDH OC192/STM64 Short Reach (SR-2) Optical Interface Specifications

Parameter
Short Reach (SR-2)
Optical interface
Single-mode
Maximum distance
SMF cable: 15.5 miles (25 km)
Standard
Telcordia GR-253 OC192 SR2
Transmitter wavelength
1530 through 1565 nm
Average launch power
–4 through 0 dBm
Receiver saturation
–3 dBm
Receiver sensitivity
–14 dBm
SONET/SDH OC192/STM64 Intermediate Reach (IR-2)

Table 4 shows the SONET/SDH OC192/STM64 Intermediate reach (IR-2) optical interface specifications.

Table 4: SONET/SDH OC192/STM64 Intermediate Reach (IR-2) Optical Interface Specifications

Parameter
Intermediate Reach (IR-2)
Optical interface
Single-mode
Maximum distance
SMF cable: 24.8 miles (40 km)
Note: Distances greater than 30 km are considered to be engineered links.
Standard
Telcordia GR-253 OC192 IR2
Transmitter wavelength
1530 nm through 1565 nm
Average launch power
–1.0. through 2 dBm
Receiver saturation
–1.0 dBm
Receiver sensitivity
–14 dBm
SONET/SDH OC192/STM64 Long reach (LR-1)

Table 5 shows the SONET/SDH OC192/STM64 long reach (LR-1) optical interface specifications.

Table 5: SONET/SDH OC192/STM64 Long Reach (LR-1) Optical Interface Specifications

Parameter
Long Reach (LR-1)
Optical interface
Single-mode
Maximum distance
SMF cable: 49.71 miles (80 km)
Standard
Telcordia GR-253 OC192 LR2
Transmitter wavelength
1530 nm through 1565 nm
Average launch power
6 through 8 dBm
Receiver saturation
–10 dBm
Receiver sensitivity
–22 dBm
SONET/SDH OC192/STM64 Long reach (LR-2)

Table 6 shows the SONET/SDH OC192/STM64 long reach (LR-2) optical interface specifications.

Table 6: SONET/SDH OC192/STM64 Long Reach (LR-2) Optical Interface Specifications

Parameter
Long Reach (LR-2)
Optical interface
Single-mode
Maximum distance
SMF cable: 49.71 miles (80 km)
Standard
Telcordia GR-253 OC192 LR2
Transmitter wavelength
1530 nm through 1565 nm
Average launch power
0 through 4 dBm
Receiver saturation
–7 dBm
Receiver sensitivity
–24 dBm