PON fiber optical module is a high-performance fiber optical module used in PON system, also called PON fiber module. It conforms to ITU-T G.984.2 standard and multi-source agreement (MSA). It uses different wavelengths in OLT (Optical Line Terminal). ) And ONT (Optical Network Terminal) to send and receive signals. There are four transmission protocols for PON optical fiber modules,APON(ATM PON),BPON (Broadband Passive Optical Network), EPON and GPON. At present, EPON and GPON are widely used.
What are the types of PON fiber optical modules?
1. SFF/SFP/SFP+ and XFP fiber optical modules
According to different packaging types, PON fiber optical modules can be divided into SFF, SFP, SFP+ or XFP.
2. OLT fiber optical module and ONU fiber optical module
According to the different plug-in devices, PON fiber optical modules have two types，OLT fiber optical modules and ONU (optical network unit) fiber optical modules, both of which are encapsulated in SFP.
3. GPON fiber optical module and EPON fiber optical module
According to technical standards, PON fibr optical modules can be divided into GPON fiber optical modules and EPON fiber optical modules. GPON fiber optical module is a high-performance and economical fiber optical module used for 2.5Gpbs serial optical data communication applications. The advantage of this fiber optical module is that it can guarantee no damage to the eyes under any failure conditions. The EPON fiber optical module has SFP, XFP and SFP+ packaging forms, and its transmission distance can reach 20km, and the receiver part has a sealed preamplifier and a limiting amplifier with LVPECL compatible differential output.
The common EPON fiber optical modules currently on the market are
(1) EPON OLT PX20/PX20+/PX20++/PX20+++ fiber optical module, suitable for optical network unit and optical line terminal, its transmission distance is 20KM, single mode, SC interface, support DDM.
(2) 10G EPON ONU SFP+ fiber optical module, suitable for optical network unit and optical line terminal. The transmission distance is 20KM, single mode, SC interface, and DDM support. 10G EPON can be divided into two categories according to the rate, asymmetric mode and symmetric mode. The downlink rate of the asymmetric mode is 10Gbit/s, the uplink rate is 1Gbit/s, and the uplink and downlink rates of the symmetric mode are both 10Gbit/s.
Part Number | Product Description |
SPT-ET4311-SE2BD | Transceiver EPON OLT SFP 1490nm/1310nm 1.25G Tx/1.25G Rx SC Interface 1000BASE-PX20 with DDM Commercial Temperature |
SPT-ET4311-SE2AD | Transceiver EPON OLT SFP 1490nm/1310nm 1.25G Tx/1.25G Rx SC Interface 1000BASE-PX20+ with DDM Commercial Temperature |
SPT-ET4311-SE2CD | Transceiver EPON OLT SFP 1490nm/1310nm 1.25G Tx/1.25G Rx SC Interface 1000BASE-PX20++ with DDM Commercial Temperature |
SPT-EUS3411-SB2BD | EPON ONU STICK SFP(MAC Inside) 1310nmTx/1490nmRx 1.25G/1.25G SC Interface Class B+ with DDM Commercial Temperature |
SPT-EUF3411-AE2AD-0 | EPON ONU SFF 1310nmTx/1490nmRx 1.25G/1.25G PX20+ with DDM ,SC/APC pigtail Commercial Temperature.Burst Logic 0 Tx On , with TxSD |
SPT-EUF3411-AE2AD-1 | EPON ONU SFF 1310nmTx/1490nmRx 1.25G/1.25G PX20+ with DDM ,SC/APC pigtail Commercial Temperature.Burst Logic 1 Tx On , with TxSD |
PT-EUF3411-P | EPON ONU SFF 1310nmTx/1490nmRx 1.25G/1.25G PX20+ with DDM ,SC/UPC pigtail Commercial Temperature |
SPT-EUF3411-PE2AD-1 | EPON ONU SFF 1310nmTx/1490nmRx 1.25G/1.25G PX20+ with DDM ,SC/UPC pigtail Commercial Temperature. Burst Logic 1 Tx On , with TxSD |
SPT-EUF3411-SE2AD-0 | EPON ONU SFF 1310nmTx/1490nmRx 1.25G/1.25G PX20+ with DDM ,SC Commercial Temperature Burst Logic 0 Tx On , with TxSD |
SPT-EUF3411-SE2AD-1 | EPON ONU SFF 1310nmTx/1490nmRx 1.25G/1.25G PX20+ with DDM SC Commercial Temperature.Burst Logic 1 Tx On , with TxSD |
The common GPON fiber optical modules on the market are,
(1) GPON OLT CLASS C+/++/+++ fiber optical module, suitable for optical line terminal, its transmission distance is 20KM, rate is 2.5G/1.25G, single mode, SC interface, support DDM.
(2) GPON OLT CLASS B+ fiber optical module, suitable for optical line terminal, its transmission distance is 20KM, speed is 2.5G/1.25G, single mode, SC interface, support DDM.
Part Number | Product Description |
SPT-GT4321-SB2BD | Tx1490nm, Rx1310nm, 2.5Gbps/1.25Gbps, Class B+, SC Interface，0ºC ~ +70ºC, With DDM |
SPT-GT4321-SC2AD | Tx1490nm, Rx1310nm, 2.5Gbps/1.25Gbps, Class C+,SC Interface，0ºC ~ +70ºC, With DDM |
SPT-GT4321-SC2CD | Tx1490nm, Rx1310nm, 2.5Gbps/1.25Gbps, Class C++,SC Interface，0ºC ~ +70ºC, With DDM |
SPT-GUS3412-SAB2BD | GPON ONU STICK SFP(MAC Inside) 1310nmTx/1490nmRx 1.244G Tx/2.488G Rx SC APC Interface Class B+ with DDM Commercial Temperature |
SPT-GUS3412-SUB2BD | GPON ONU STICK SFP(MAC Inside) 1310nmTx/1490nmRx 1.244G Tx/2.488G Rx SC UPC Interface Class B+ with DDM Commercial Temperature |
What are the characteristics of PON fiber optical modules?
1. The working temperature is 0°C-70°C or -20°C-70°C;
2.1310/1490 burst mode transmitter and continuous mode receiver (ONU);
3.1490/1310 continuous mode transmitter and burst mode receiver (OLT);
4. The transmission distance can reach 20km;
5. The interface type is duplex SC or SC/APC;
6. It can avoid electromagnetic interference and thunder and lightning effects of external equipment;
7. Reduce the failure rate of lines and external equipment, improve system reliability, and reduce maintenance costs.
The difference between PON fiber optical module and traditional fiber optical module
1. The traditional fiber optical module optical signal transmission mode is point-to-point (P2P), and PON fiber optical module point-to-multipoint (P2MP).
2. Traditional fiber optical modules should be used in pairs and use one optical fiber or two optical fibers for transmission (duplex or simplex). PON fiber optical modules are not used.
3. The optical fiber link loss of traditional fiber optical modules includes attenuation, chromatic dispersion, fiber connection insertion loss, etc.. PON fiber optical modules have more frequency division ratio loss than traditional fiber optical modules.
4. The transmission distance of the traditional fiber optical module can reach up to 200km, while the PON fiber optical module is only 20km.
5. Traditional fiber optical modules are mainly used in backbone networks, and PON fiber optical modules are mainly used in access networks.
Tags : fiber module,fiber optical modules, PON SFP,PON fiber module
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