Telefon: +86-10-82912638

Telesail as the best manufacture from china for optical transecievr, gives you high-quality SFP at a very competitive price and fast delievery.

All our transceivers are 100% compatible with major brands like Cisco, H3C, Redback, Huawei,ZTE and backed by a lifetime warranty.

OC-12 or STM-4 is a network line with transmission speeds of up to 622.08 Mbit/s (payload: 601.344 Mbit/s; overhead: 20.736 Mbit/s).


The digital diagnostics is a great usage for users who can remotely monitor in a real time, received optical power, transmitted optical power, laser bias current, input voltage and temperature of optical modules on the data link. Users can use the digital diagnostic function to manage their network with a highly accurate, cost effective tool for a reliable performing monitoring

Product Features

Operating Temperature :0℃-70℃ or -40℃-85℃

850nm VCSEL and 1310nm or 1550nm DFB LD transmission

Transmission distance :120km max
LC interface,


Volatge:+3.3V

Compliant with ITU-T G.957 G.958 specification

Compliant with Telcordia(Bellcore)GR-468-CORE specification.