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LTH5312 XFP 10G EPON OLT Transceiver

Four Lambda 10G EPON+Turbo EPON Quadplexer

The LTH5312-PHA+ is a combination of 10G EPON OLT and Turbo EPON OLT optical transceivers in an XFP housing. It is an extended 

version of LTH5312-PH+ which can work under –40~90degC. It is designed to support both the new IEEE802.3av PR-30 10G and the Turbo 

EPON specifications over a single fiber via coarse wave division multiplexing. The 10G bidirectional link is configured with 1270nm/1577nm optics and the Turbo EPON is configured with 1310nm/1490nm optics. The 1270nm and 1310nm optical burst mode receivers incorporate APD/TIA  optics for maximum sensitivity. The 10G transmitter incorporates a 1577nm EML DFB laser assembly and the 2.5G transmitter incorporates a 1490nm DFB laser assembly. The transmitters can be controlled by the LVTTL Tx_DISABLE function and the receivers incorporates the LVTTL Rx_LOS output. 

The LTH5312-PHA+ is designed to support up to 32 subscribers over distances of up to 20km. It is FDA 21CFR1040.10 and IEC 60825-2 

Class I laser safety compliant and meets the EEC Directive 2002/95/EC for RoHS compliance.


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Product Name Part Number Package Interface Reach Temp Tx Output Tx Rate Tx Wavelength Rx Input Rx Rate Rx Wavelength
10G EPON OLT LTH5312-PHA+ XFP SC 20km H 2~5dBm
2~7dBm
10.3125Gb/s
1.25Gb/s
1577nm
1490nm
-28dBm
-29.78dBm
10.3125Gb/s
1.25Gb/s
1270nm
1310nm

•  10G Ethernet Passive Opitacal Access Network 

•  Fiber to the Home

•  Fiber to the Building

•  Fiber to the Curb


•  XFP Package

•  3.3V and 5V DC power supply

•  4 Lambda

•  SC receptacle optical connector

•  Hot pluggable

•  2x15 XFP Electrical Interface

•  IEEE802.3av PR-30D compliant

Optical Transmitter

•  1577nm CW Mode EML

•  10.3125Gb/s data rate

•  LVCML AC Coupled input

•  1490nm CW Mode DFB Laser

•  2.5Gb/s data rate

•  LVPECL AC Coupled input

Optical Receiver

•  1270nm Burst Mode APD/TIA receiver

•  10.3125Gb/s data rate

•  LVCML DC Coupled output

•  1310nm Burst Mode APD/TIA receiver

•  1.25Gb/s data rate

•  LVPECL DC Coupled output