Model: 1AB377220003 Type: SFP (Small Form-factor Pluggable) optical module, supporting hot-swapping. Rate: 2.5 Gbps (compatible with 2.488 Gbps, such as OC-48/STM-16 or Gigabit Ethernet). Transmission Distance: 80 kilometers (long-distance transmission, requires the use of single-mode fiber (SMF)). Wavelength: 1529.55 nm, belonging to DWDM (Dense Wavelength Division Multiplexing) channel, in line with ITU-T wavelength standards. Applications: Suitable for high-density, large-capacity DWDM optical networks, such as metropolitan area networks (MAN), backbone networks, or long-distance telecommunications transmission. Key Features 1. DWDM Technology Supports specific wavelengths specified by ITU-T (1529.55 nm), can be multiplexed with other DWDM channels, enhancing the utilization of fiber bandwidth. Channel spacing is typically 100 GHz or 50 GHz (please confirm the specific specifications). 2. Long-Distance Transmission 80 km transmission distance, requires the use of single-mode fiber (SMF) and possibly a dispersion compensation module (DCM). May include an APD (Avalanche Photodiode) receiver or high-performance laser to support long-distance. 3. Compatibility Complies with SFP MSA (Multi-Source Agreement) standards, compatible with Nokia and third-party devices supporting SFP interfaces. Supports digital diagnostic monitoring (DDM/DOM), allowing monitoring of parameters such as optical power and temperature through the network management system. 4. Environmental Adaptability Operating temperature range: commercial grade (0°C to +70°C) or industrial grade (-40°C to +85°C), please confirm according to the model suffix. Typical Application Scenarios Telecom Operator Networks: Used for 2.5G service transmission in DWDM systems (such as SDH/SONET, Ethernet). Enterprise Private Lines: Long-distance point-to-point or ring network connections. Data Center Interconnection (DCI): High-density wavelength multiplexing scenarios. In addition to Nokia 1AB377220003 1AB377220004 1AB377220006 1AB377220007 1AB377220008 1AB377220009 1AB377220010 1AB377220011 1AB377220012 1AB377220013 1AB377220014 1AB377220015 1AB377220016 , Liyuan Tech supply a wide range of other Nokia Series . If you have any need or interest, please feel free to send inquiry to global@chn-liyuan.com