OC-3 PTM optical specifications

Alcatel-Lucent 1665 DMX supports SR-1, IR-1, LR-1, and CWDM OC-3 Pluggable Transmission Module (PTMs).

The following circuit packs support OC-3 PTMs

The following table lists the system specifications for OC-3 PTM interfaces.

System information	OC-3 SR-1	OC-3 IR-1	OC-3 LR-1	OC-3/STM-1 CWDM-LR
Optical Line Rate	155.52 Mb/s
Optical Line Coding	Scrambled NRZ
Optical Wavelength	1310 nm			See Table 10-51, OC-3/STM-1 or OC-12/STM-4 CWDM-LR PTM wavelengths.
Performance	Short Reach, SR-1	Intermediate Reach, IR-1	Long Reach, LR-1	Coarse Wavelength Division Multiplexing (CWDM), Long Reach
Temperature Range	OSP hardened/Industrial (−40°C to 85°C)			Extended temperature range (−5°C to 85°C)

The table below lists the OC-3/STM-1 PTM transmitter information.

Transmitter information	OC-3 SR-1	OC-3 IR-1	OC-3 LR-1	OC-3/STM-1 CWDM-LR
Optical Device Temperature Controller	None
IEC 60825 Laser Classification	Class 1
FDA Laser Classification	Class I
Optical Source	Fabry Perot (FP)/Light Emitting Diode (LED) Laser	Fabry Perot (FP) Laser	Fabry Perot (FP)/Distributed Feed-Back (DFB) Laser	Distributed Feed-Back (DFB) Laser

The table below lists the OC-3 PTM receiver information.

Receiver information	OC-3 SR-1, IR-1, LR-1	OC-3/STM-1 CWDM-LR
Optical Detector	InGaAsP PIN	Avalanche Photo Diode (APD)
Faceplate Optical Connector	LC connector

The table below lists the OC-3/STM-1 PTM link budgets.

Parameter	OC-3 SR-1¹	OC-3 IR-1¹	OC-3 LR-1¹	OC-3/STM-1 CWDM-LR²
Minimum Wavelength	1260 nm	1261 nm	1263 nm	λ_c −7 nm
Maximum Wavelength	1360 nm	1360 nm	1360 nm	λ_c +7 nm
Maximum Spectral Width (Δλ₂₀)	NA	NA	NA /1.0 nm³	1.0 nm
Maximum RMS Spectral Width (σ)	40/80 nm	7.7 nm	3.0 nm /NA³	NA
Minimum Side-Mode Suppression Ratio (SSMR)	NA	NA	NA /30 dB³	30 dB
Maximum Transmitter Power	−8.0 dBm	−8.0 dBm	0.0 dBm	+5.0 dBm
Minimum Transmitter Power	−15.0 dBm	−15.0 dBm	−5.0 dBm	−1.0 dBm
Maximum Received Power	−8.0 dBm	−8.0 dBm	−10.0 dBm	−9.0 dBm
Minimum Received Power (1x10⁻¹⁰ BER)	−23.0 dBm	−28.0 dBm	−34.0 dBm	−28.0 dBm
System Gain⁴	8.0 dB	13.0 dB	29.0 dB	27.0 dB
Maximum Dispersion	NA	NA	NA	1600 ps/nm
Optical Path Penalty⁵	1.0 dB	1.0 dB	1.0 dB	1.0 dB
Minimum Optical Return Loss⁶	NA	20.0 dB	24.0 dB	24.0 dB
Maximum Receiver Reflectance⁶	NA	−14.0 dB	−27.0 dB	−27.0 dB
Minimum Loss Budget⁷	0 dB	0 dB	10.0 dB	14.0 dB
Maximum Loss Budget⁸	7.0 dB	12.0 dB	28.0 dB	26.0 dB
Target Distance	2 km	15 km	40 km	96 km

All terminology is consistent with GR-253-CORE, Issue 3. All values are worst-case end of life. Optical specifications meet or exceed equivalent GR-253-CORE requirements.
The OC-3/STM-1 CWDM PTMs can also operate as OC-12/STM-4 PTMs.
x/y: x is using Fabry Perot (FP) and y is using Distributed Feed-Back (DFB) laser.
The System Gain is Minimum Transmitter Power minus Minimum Received Power.
Optical path penalty includes effects of dispersion, reflection, and jitter that occur on the optical path. The optical path penalty for 1310 nm optics is normally 1.0 dB.
Refer to GR-253-CORE for more information about these parameters.
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.
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.