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1. 10G GPON ONU solution :
Framing is "G-PON like" but uses different wavelengths from G-PON (using a WDM to separate them) so that G-PON subscribers can be upgraded to 10G-PON incrementally while GPON users continue on the original OLT. The G-PON standard is G.987. This compares to the IEEE 802.3av standard for 10G-EPON based on Ethernet, which has standardized upstream rates of both 1Gbps and 10Gbps. The 10 Gigabit PON wavelengths (1577 nm down / 1270 nm up) differ from GPON and EPON (1490 nm down /1310 nm up), allowing it to coexist on the same fibre with either of the Gigabit PONs.
ITU-T Recommendation G.987 is a family that defines this access network standard (referred to as XG-PON). It comprises four recommendations:
- G.987: 10-Gigabit-capable passive optical network (XG-PON) systems: Definitions, Abbreviations, and Acronyms, 2010.
- G.987.1: General requirements of 10G-PON systems (approved 2010-01-13). Includes examples of services, user network interfaces (UNIs) and service node interfaces (SNIs), as well as the principal deployment configurations that are requested by network operators.
- G.987.2: Physical media dependent (PMD) layer specification (approved 2010-01-13, updated 2010-10-07). Describes a flexible optical fibre access network representing an evolutionary development from G.984.2, asymmetric only in the current version.
- G.987.3: Transmission convergence (TC) specifications (approved 2010-10-07).
- G.988: ONU management and control interface (OMCI) specification.(approved 2010-10-07)
Applications :
- 10G GPON -- XGPON N2a class or XGS-PON
Product list :
- EOLS-PX-GU-20 Series (XGPON N2a class) : is a transceiver for the optical network unit (ONU) of 10GPON with 9.95328Gbps in downstream and 2.48832Gbps in upstream. EOLS-PX-GU-20 series is high performance module for single fiber communications by using 1270nm burst-mode transmitter and
1577nm continuous-mode receiver.
The transmitter section uses a DFB 1270nm laser and is a class 1 laser compliant according to International Safety Standard IEC-60825-1. The receiver section uses an integrated 1577 nm detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC.
CML interface is used for differential inputs and outputs. A LVTTL logic and control interface simplifies interface to external circuitry.
CML interface is used for differential inputs and outputs. A LVTTL logic and control interface simplifies interface to external circuitry.
- EOLS-PR-GU-20 Series (XGS-PON)is a transceiver for the optical network unit (ONU) of 10G GPON with 9.95328Gbps in downstream and 9.95328Gbps in upstream. EOLS-PR-GU-20 series is high performance module for single fiber communications by using 1270nm burst-mode transmitter and
1577nm continuous-mode receiver.
The transmitter section uses a DFB 1270nm laser and is a class 1 laser compliant according to International Safety Standard IEC-60825-1. The receiver section uses an integrated 1577 nm detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC.
CML interface is used for differential inputs and outputs. LVTTL logic control interface simplifies the interfaces to external circuitry.
CML interface is used for differential inputs and outputs. LVTTL logic control interface simplifies the interfaces to external circuitry.
2. GPON Sticker
Eoptolink GPON (Gigabit Passive Optical Network) Stick , EOLS-GN-25-D and EOLS-GN-35-D a GPON ONT in an MSA SFP package. The GPON Stick provides a pluggable GPON interface for FTTx and wireless backhaul applications with a compact size and lower power consumption. Any standard Ethernet SFP switch port can simply convert to a GPON ONT port and interconnect to an existing GPON network with the insertion of this module. It is built in compliance with ITU-T G.984 specifications, an industry standard which defines GPON access networks.
The GPON Stick provides a pluggable GPON ONU interface for networking equipment with an uplink SFP receptacle enabling these devices to be deployed in GPON networks for FTTx, business services, and wireless backhaul applications. The hosting devices include Ethernet switches, routers, wireless base stations, Ethernet demarcation devices, remote DSLAMs, home gateways and other customer premises equipment.
Features :
- GPON ONU in SFP MSA Footprint
- Integrated GPON ITU-T G.984 MAC
- Compliant to FSAN G.984.5 Specifications
- TC Layer GEM encapsulation mode
- OMCI support per ITU-T G.988
- 1.244Gbps, 1310nm Burst Mode Transmitter
- 2.488Gbps, 1490nm Continuous Mode Receiver
- Class 1 FDA and IEC60825-1 Laser Safety Compliant
- Operating Case Temperature Standard: 0C~+70C
- DDM
- Providing Pluggable GPON ONU
- Interface for Ethernet Switches
- Wireless Backhaul Equipment
- Ethernet Demarcations, Routers
- Other Customer Premises Equipment
- EOLS-GN-25-Dx : GPON ONU B+ SFP stick, Tx : 1.244Gbps, 1310nm, Rx: 2.488Gbps, 1490nm, SC Type, Commercial/Industrial Temp.
GPON transceivers
Gigabit Passive Optical Networks (GPON) is the leading technology being used in FTTx (FTTH) deployments. PON is different than other optical network topologies in that it is a Point to Multi-Point (P2MP) topology. From the Central Office’s (CO) Optical Line Terminal (OLT, with SFP GPON transceiver/module) 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 (Optical Network Unit - ONU) to determine what packets are for that customer. All other packets are discarded. The PON current standards have defined downstream data rates up to 2.5Gbps.
Features :
- SFP Package with SC receptacle or Pigtailed, both ONU and OLT series
- 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
- Operating Case Temperature Commercial and Industrial
Applications :
- GPON
Product List :
a. OLT Transceivers :
- EOLS-GT-25-Dx : GPON OLT B+ SFP, Tx:2.488Gbps, 1490nm, Rx: 1.244Gbps, 1310nm, SC type, Commercial/Industrial Temp., SFP
- EOLS-GT-35-Dx : GPON OLT C+ SFP, , Tx:2.488Gbps, 1490nm, Rx: 1.244Gbps, 1310nm, SC type, Commercial/Industrial Temp., SFP
- EOLS-GU-25-Dx : GPON ONU B+ SFP, Tx: 1.244Gbps, 1310nm, Rx:2.488Gbps, 1490nm, SC type, Commercial/Industrial Temp., SFP
- EOLS-GU-35-Dx : GPON ONU C+ SFP, , Tx: 1.244Gbps, 1310nm, Rx:2.488Gbps, 1490nm, SC type, Commercial/Industrial Temp., SFP