2012年11月21日星期三

GPON ONU and OLT SFP Modules – Ingellen

GPON (Gigabit Passive Optical Networks) is the leading technology used in FTTx (FTTH) deployments. Unlike point to point optical network topology, PON is different than in that it is a Point to Multi-Point (P2MP) topology. A PON consists of an Optical Line Termination (OLT) on the provider's side and one or many Optical Network Units (ONU) on the users' side. From the Central Office’s?(CO) OLT with GPON OLT SPT transceiver, a single strand of fiber goes out to a passive optical splitter where its signal is multiplied to 64 (128) different lines. The Transmit and Receive signals operate on different wavelengths allowing bi-directional operation over a single fiber. Anything transmitted from the OLT is transmitted to all 32 lines. It is up to the customer’s system ONU to determine what packets are for that customer. The PON current standards have defined downstream data rates up to 2.5Gbps.

GPON OUN SFP
GPON OUN SFP 20 Km is a small form-factor pluggable module used for the ONU of GPON with 2.5Gbps in downstream and 1.25Gbps in upstream. It is high performance module for single fiber communications by using 1310nm burst-mode transmitter and 1490 nm continuous-mode receiver.
Features
2x10 SFF Package With SC Receptacle, SC Pigtail
1.244Gbps, 1310nm Burst Mode Transmitter
2.488Gbps, 1490nm Continuous Mode Receiver
Un-cooled DFB Laser and APD High Sensitivity Detector
Up to 20km Distance at 9/125μm G.652 SMF With 32:1 Split Ratio
Single 3.3V Power Supply
LVTTL Tx_Dis and SD
Class 1 FDA and IEC60825-1 Laser Safety Compliant
Operating Case Temperature
Standard: 0℃~+70℃
Industry: -40℃~+85℃
Compliant with ITU-T G.984.2 and G.984.2 Amendent-2006
Compliant with SFF MSA Specific
Burst mode Tx DDMI function
Applications
Access Network
Fiber to the Home, Curb, Office (FTTx)

GPON OLT SFP
GPON OLT SFP 20 km is also a high performance module for single fiber communication by using 1490nm continuous-mode transmitter and 1310 nm burst-mode receiver and compatible with GPN OLT per ITU-T G.984.2.
Features
SFP Package with SC receptacle
1.244Gbps, 1310nm BM APD Receiver
2.488Gbps, 1490nm Transmitter With Isolator
Fast Signal Detect feature reduces ranging overhead
Simplified OLT Reset Timing
Compliant With ITU-T G.984.2
Up to 20km distance at 9/125μm G.652 SMF
28dB Link Budget
Operating Case Temperature
Commercial: 0℃~+70℃
Industrial: -40℃~+85℃
Compliant with SFP MSA
Applications
GPON 20km OLT Side
Access Networks
Fiber to the Home, Curb, Office (FTTx)

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