Nortel NTTP02CDE6 OC-3/STM-1 IR-1 S1.1 SFP 1310nm

The Nortel Networks NTTP02CDE6 (also referenced as NTTP02CDE6-03 or NTTP02CDE6-02 in some revisions) is a hot-pluggable SFP (Small Form-factor Pluggable) optical transceiver module engineered for OC-3/STM-1 applications in Nortel and Ciena optical transmission platforms, such as the OME6500 multiservice transport system. It delivers a single bidirectional optical interface at the standard line rate of 155.52 Mbit/s (OC-3/STM-1), with support for data rates down to 100–155 Mbit/s depending on mapping.Classified as Intermediate Reach IR-1 / S-1.1 per SONET/SDH standards (ITU-T G.957 and Telcordia GR-253), the module operates at 1310 nm using a Fabry-Perot (FP) laser transmitter and a PIN photodiode receiver. It is optimized for single-mode fiber (SMF 9/125 µm) with a typical reach of up to 15 km and a link power budget of approximately 19 dB. Optical output power ranges typically from -15 dBm to -8 dBm, while receiver sensitivity supports reliable performance with low bit error rates (better than 10⁻¹²).
The NTTP02CDE6 fully complies with SONET OC-3 and SDH STM-1 framing requirements, handling section, line, and path overhead processing when installed in a compatible host shelf. It supports transport of concatenated payloads as well as grooming and mapping of lower-rate client signals (e.g., E1/T1) through the platform’s cross-connect functions. The transceiver includes digital diagnostic monitoring (DDM/DOM) for real-time reporting of transmitted and received optical power, laser bias current, temperature, and supply voltage via the SFF-8472 interface.
Optical connectivity is provided through a duplex LC connector, ensuring compact size and high mating reliability. Key operational features comprise Loss of Signal (LOS) detection and assertion, automatic laser shutdown (ALS) for Class 1 eye safety compliance, and comprehensive performance monitoring including BIP error checking, signal degrade, and signal fail thresholds. All alarms and status data are forwarded to the network element management system for centralized fault management and performance analysis.
The module uses a standard 20-pin SFP electrical interface with 3.3 V power supply and low power consumption (typically under 1 W), making it suitable for high-density deployments. It supports hot-swap operations, allowing insertion or removal without service disruption in redundant configurations. Environmental ratings include an extended industrial temperature range option (I-Temp, often -40°C to +85°C) or commercial range (0°C to +70°C), high humidity tolerance, and integrated protection against ESD and electrical surges.
This SFP transceiver is mainly deployed for intermediate-reach point-to-point links between optical add-drop multiplexers (OADMs), terminal multiplexers, or as a tributary interface in metro and regional SDH/SONET transport networks. It ensures seamless interoperability with other Nortel/Ciena SFP modules within the same chassis and is fully compatible with the platform’s element management system for remote provisioning, software upgrades, and detailed performance data collection.
Installation guidelines emphasize proper fiber end-face cleaning, correct Tx/Rx fiber polarity, and observance of minimum bend radius for patch cords. The NTTP02CDE6 provides a reliable, compact, and cost-effective solution for 155 Mbit/s optical transport over single-mode fiber while maintaining full compatibility with legacy Nortel infrastructure now often supported under the Ciena portfolio.