A1926 SDH WDM Tx product family. 1531.123nm and 1531.896nm two wavelength selectable. With SC/PC fiber connector. See manufacture test data at the 2nd pdf link below.                                                                                                                    
 
Features
New International Standard
Multisource Optical Interfaces
Upward compatibility with the different features
DWDM Transmitter for Long-Haul 1 800 ps/nm (> 90 km)
From 100 Mbit/s to 2.7 Gbit/s (FEC) bit rate
Operating at 1.5 ?m wavelength
Full performance in operating case temperature from -5 to + 70 °C
Space-saving package 37 cm²
Alcatel Reliability and Qualification Program for built in quality
High optical output power 10 mW typical
2 wavelengths selectable ITU-T G.692;100 GHz grid (±0.1nm)
Clocked or Non-Clocked mode selectable
Ultra low jitter generation
Digital laser degraded alarm
Temperature Deviation Alarm
Monitoring for back facet PD current
Power supplies: + 5 V and + 3.3 V
Power consumption: 3 W typical