Pureoptics NOK-SFP10G-BXU20-PO SFP+ 10G Bidi 20km 1270/1330nm

The Pureoptics NOK-SFP10G-BXU20-PO is a hot-pluggable SFP+ (Small Form-factor Pluggable Plus) bidirectional (BiDi) optical transceiver module compatible with Nokia (Alcatel-Lucent) equipment. It provides a single-fiber 10 Gbit/s optical interface compliant with 10GBASE-BX20-U specifications for point-to-point Ethernet links.This module transmits at 1270 nm and receives at 1330 nm, enabling bidirectional communication over a single strand of single-mode fiber (SMF 9/125 µm). It supports a typical transmission distance of up to 20 km with an adequate optical link budget. The transmitter section uses a DFB laser, while the receiver employs a PIN photodiode for high sensitivity and low noise performance. Average transmitter output power is typically in the range of -8.2 dBm to +0.5 dBm, with receiver sensitivity supporting a bit error rate better than 10⁻¹² over the specified reach.
The transceiver fully complies with IEEE 802.3ae 10GBASE-BX and SFP+ MSA standards. It handles 10.3125 Gbit/s line rate with low jitter generation and excellent extinction ratio. Digital diagnostic monitoring (DDM/DOM) functions compliant with SFF-8472 allow real-time access to parameters such as transmitted and received optical power, laser bias current, temperature, and supply voltage via the I²C interface.
Optical connectivity is realized through a simplex LC connector. Key operational features include Loss of Signal (LOS) detection and assertion, automatic laser shutdown (ALS) for Class 1 eye safety compliance, and hot-swap support. The module operates with a 3.3 V power supply and features low power consumption (typically below 1.5 W), making it suitable for high-density 10 Gbit/s port configurations in routers, switches, and optical transport platforms.
Environmental specifications meet standard carrier and enterprise requirements with a commercial operating temperature range of 0°C to +70°C, high humidity tolerance, and built-in ESD protection. This BiDi SFP+ is primarily used for cost-effective single-fiber deployments in metro access, enterprise backbones, or as uplink interfaces in Nokia-compatible equipment, where it pairs with the complementary downstream module (TX:1330nm / RX:1270nm).
The NOK-SFP10G-BXU20-PO integrates seamlessly with network management systems for remote monitoring and fault isolation. Installation requires proper fiber cleaning, correct polarity on the simplex LC connector, and adherence to minimum bend radius guidelines for the optical cable. It offers a reliable, compact, and power-efficient solution for 10 Gbit/s bidirectional transport over single-mode fiber while maintaining full compatibility with Nokia multiservice platforms.