OC-48/STM-16 PTM optical specifications

Purpose

Alcatel-Lucent 1850 TSS-5 supports SR-1, LR-1, LR-2, and CWDM OC-48/STM-16 Pluggable Transmission Modules (PTMs).

System specifications

The following table lists the system specifications for OC-48/STM-16 PTM interfaces.

Table 10-21: OC-48/STM-16 PTM optical system specifications

System Information

OC-48/STM-16 SR-1

OC-48/STM-16 LR-1

OC-48/STM-16 LR-2

OC-48/STM-16 CWDM

Optical Line Rate

2.488 Gb/s

Optical Line Coding

Scrambled NRZ

Optical Wavelength

1310 nm

1550 nm

Refer to Table 10-22, OC-48/STM-16 CWDM PTM wavelengths.

Performance

SONET Short Reach, SR-1

SONET Long Reach, LR-1

SONET Very Long Reach, LR-2

Coarse Wavelength Division Multiplexing (CWDM), ITU-T G.695 Longhaul

Temperature Range

OSP hardened/Industrial (−40°C to 85°C).

Table 10-22: OC-48/STM-16 CWDM PTM wavelengths

Apparatus Code

Channel #

Wavelength

S2G7C47LI

47

1471 nm

S2G7C49LI

49

1491 nm

S2G7C51LI

51

1511 nm

S2G7C53LI

53

1531 nm

S2G7C55LI

55

1551 nm

S2G7C57LI

57

1571 nm

S2G7C59LI

59

1591 nm

S2G7C61LI

61

1611 nm

Transmitter specifications

The following table lists the OC-48/STM-16 PTM transmitter information.

Table 10-23: OC-48/STM-16 PTM optical transmitter information

Transmitter information

OC-48/STM-16 SR-1

OC-48/STM-16 LR-1

OC-48/STM-16 LR-2

OC-48/STM-16 CWDM

Optical Device Temperature Controller

None

Cooled Distributed Feed-Back (DFB) Laser

IEC 60825 Laser Classification

Class 1

FDA Laser Classification

Class I

Optical Source

Fabry Perot (FP) Laser

Distributed Feed-Back (DFB) Laser

Faceplate Optical Connector

LC connector

Receiver specifications

The following table lists the OC-48/STM-16 PTM receiver information.

Table 10-24: OC-48/STM-16 PTM optical receiver information

Receiver information

OC-48/STM-16SR-1

OC-48/STM-16 LR-1

OC-48/STM-16 LR-2

OC-48/STM-16 CWDM

Optical Detector

InGaAsP PIN

Avalanche Photo Diode (APD)

Faceplate Optical Connector

LC connector

Link budgets

The following tables lists the OC-48/STM-16 PTM link budgets.

Table 10-25: OC-48/STM-16 PTM optical specifications and link budgets

Parameter

OC-48/STM-16SR-1 1

OC-48/STM-16LR-1 1

OC-48/STM-16LR-2 1

OC-48/STM-16CWDM

Minimum Wavelength

1266 nm

1280 nm

1500 nm

λc −7 nm

Maximum Wavelength

1360 nm

1335 nm

1580 nm

λc +7 nm

Maximum Spectral Width (Δλ20)

NA

1.0 nm

1.0 nm

1.0 nm

Maximum RMS Spectral Width (σ)

4.0 nm

NA

NA

NA

Minimum Side Mode Suppression Ratio

NA

30 dB

30 dB

30 dB

Maximum Transmitter Power

−3.0 dBm

3.0 dBm

3.0 dBm

5.0 dBm

Minimum Transmitter Power

−10.0 dBm

−2.0 dBm

−2.0 dBm

0 dBm

Maximum Received Power

−3.0 dBm

−9.0 dBm

−9.0 dBm

−8.0 dBm

Minimum Received Power (1x10−10 BER)

−18.0 dBm

−27.0 dBm

−28.0 dBm

NA

Minimum Received Power (1x10−12 BER)

NA

NA

NA

−28.0 dBm

Maximum Negative Dispersion

NA

NA

NA

−300 ps/nm

Maximum Dispersion

NA

NA

1600 ps/nm

1640 ps/nm

Minimum System Gain 2

8.0 dB

25.0 dB

26.0 dB

28.0 dB

Optical Path Penalty

1.0 dB 3

1.0 dB 3

2.0 dB 3

2.5 dB 4

Minimum Optical Return Loss 5

24.0 dB

24.0 dB

24.0 dB

24.0 dB

Maximum Receiver Reflectance 5

−27.0 dB

−27.0 dB

−27.0 dB

−27.0 dB

Minimum Loss Budget 6

0 dB

12.0 dB

12.0 dB

13.0 dB

Maximum Loss Budget 7

7.0 dB

24.0 dB

24.0 dB

25.5 dB

Target Distance

2 km 8

40 km 8

80 km 8

80 km 9

Notes:

  1. All terminology is consistent with GR-253-CORE, Issue 3. All values are worst-case end of life (EOL). Optical specifications meet or exceed equivalent GR-253-CORE requirements.

  2. The System Gain is Minimum Transmitter Power minus Minimum Received Power.

  3. Optical path penalty includes effects of dispersion, reflection, and jitter that occur on the optical path.

  4. CWDM optical path penalty includes effects of dispersion, reflection, and jitter and a 0.3 dB penalty due to optical filters and cross-talk.

  5. Refer to GR-253-CORE for more information about these parameters.

  6. For all packs and PTMs where the Minimum Loss Budget (MLB) is 0, no attenuator is required for loopbacks. For all packs and PTMs where the MLB is greater than 0, an attenuator is required. The value of the LBO must be equal to or greater than the MLB.

  7. The stated maximum loss budgets are assumed to be worst-case values including losses due to splices, connectors, optical attenuators or other passive optical devices, and any additional cable margin.

  8. The target distance assumes no passive optical units are being used.

  9. The CWDM target distance is dispersion-limited at the 1611 nm wavelength and attenuation-limited at the 1471 nm wavelength.

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