Dual-channel GEPON OLT CSFP (Gigabitcapable Passive Optical Network Optical Line Terminal Compact Small Form Factor Pluggable) optical module

The invention discloses an EPON OLT (Ethernet Passive Optical Network Optical Line Terminal) optical module, in particular to a dual-channel GEPON OLT CSFP (Gigabitcapable Passive Optical Network Optical Line Terminal Compact Small Form Factor Pluggable) optical module, which comprises a power supply soft starting circuit, a microcontroller, an I channel laser drive circuit, an I channel amplitude limit amplification circuit, an I channel avalanche photodiode boosted circuit, an I channel RSSI (Received Signal Strength Indicator) image current source and a sampling maintaining circuit, two I channel optical receiving and sending assemblies, a 20-pin CSFP gold finger connector and an I channel LC interface. Due to the I channel optical receiving and sending assemblies, the optical module can work in a one-path and one-channel standard SFPEPONOLT mode which is compatible with the traditional EPON system, and can also work in a dual-channel CSFPEPONOLT mode with doubled port density and data throughput, thus a system is favorably maintained in smooth transition and upgrading, and system upgrading cost and equipment input cost of an operator are effectively reduced.