Optical modules can be divided into two major categories, the digital pass optical modules and PON optical modules. Digital pass optical modules are the more commonly used optical modules, which are generally used in enterprise networks, data centres, base stations, etc.; while PON optical modules are used in access networks (PON systems).
What is a PON optical module?
A PON optical module is a high-performance optical module for PON systems, also known as a PON module, which complies with the ITU-T G.984.2 standard and the Multi-Source Agreement (MSA), and uses different wavelengths to send and receive signals between the OLT (Optical Line Terminal) and the ONT (Optical Network Terminal).
Classification of PON optical modules
①Classification according to transmission protocol
PON optical modules can be classified according to the transmission protocol as APON (ATM PON) optical modules, BPON (Broadband Passive Network) optical modules, EPON (Ethernet) optical modules and GPON (Gigabit Passive Network) optical modules, which are currently used more often as EPON optical modules and GPON optical modules.
②Category according to package
Most of the optical modules used for fiber-to-the-home transmission are PON modules, which usually operate at 1310nm/1490nm and are available in SFF, SFP, SFP+ and XFP packages.
Features of PON optical modules
PON modules are generally only 10KM or 20KM in transmission distance, unlike traditional optical modules used in pairs, PON optical modules are generally not used in pairs, the interface type is generally SC interface, the operating rate is generally gigabit or 10 Gigabit.
