EPON OLT with 2 ports & 4 uplink ports - 2 SFP and 2 10/100/1000 UTP based, managed by EMS based on standard SNMP protocol.
Fiberbit's 2 PON port EPON OLT get's installed in center - POP's and NOC's, where core IP and phone network connections are available. Connected with one side to splitters and subsequently to ONU's, and another side as an uplink to router and switch to Internet or WAN, this 2 port OLT provides you quick start of a network withough big investment in central POP equipment. You can start with 1 PON port, and later upgrade this OLT to 2 PON ports and 128 ONU's. It is worth to mention that you are not limited to connect only 1 subscriber to each ONU - Fiberbit have a wide selection of multiport ONU's, such as 4, 8 and even 24 ports. This gives you a bigger freedom to plan network. Applications currently covered by EPON is:
Small and mid sized and big ISP's;
Regional level carriers who want to organize fast development of FTTH access
Hotels and resorts who want to establish triple play over a fiber
Local Area Networks;
CCTV IP camera surveillance
Below you can see 1 common scenario - suburban household connected by EPON OLT in center and various ONU's at the CPE - user side.
2 PON port EPON OLT optical line terminal equipment. It can support 2 GEPON PON ports and connect 128 ONU at most (by 1:64 splitter), and provides 2 uplink GE optic SFP slots and 2 uplink copper SFP slots. This type EPON OLT also have built-in powerful switch modules, supporting full-duplex forwarding, powerful layer-2 protocols.
Main distinction, besides the long list of sophisticated features, that you can review below, we can mention EMS system. Some screenshots are provided below.
In EPON system, EPON OLT units PON port is responsible for the registering of ONU, transfers the Ethernet message received from network in the downlink to EPON optical signal, and sent it to ONU by passive network. In up link, it receives EPON optical signal sent by ONU and transfer it to ethernet message then send to swich core equipment. It includes 2 PON port of 1.25G; usually each PON port can access 64 pieces of ONU equipment in the transmission distance of 10kms or 32 for 20 km The equipment is composed by high integrated OLT chips and independent control modules, offering reliable assurance for users in functions and performance.
Support ONUs communicate under the same PON port
Support 802.3 MPCP protocol
Support 802.3 OAM and expand protocal(slave port), have abundant OAM function design, offer long-distance management through OLT
Have double-channal independent OLT
Support long-distance update for software
High integration level and integration management, and have the function of double layer exchange
Support data encrypt service in downlink, secure the data transition security for users
Support ONU authentication, avert illegal ONU accesss to network
Support DBA dynamic bandwidth allocation
Support IGMP Proxy
Support ACL functions
Support QOS functions
Support 4K MAC address with single channal OLT
Support VLAN divided by LLID
Offer abundant statistical information
Support hot plug by the board
Offer 2G uplink
The uplink is SFP, and could be configured as electrical port or optical port
If configured as electrical port,it should work as the pattern of 1000M
Support the VLAN division on the basis of port
Support 4096 entries of VLAN
The capacity of MAC address is 8K
Uplink support port trunk, port monitoring and mirroring
Offers 2 control interface, local and network
Support 3 types of management CLI, TELNET and SNMP
The net Work control supports in-band and out-band
Support read of SFP mode
Friendly NMS GUI manager
2 PON port EPON OLT general specifications
1Gbps transmission rate
Network reach: 20 km
Transmitter power: 2.5dbm to 7 dbm
Receiver sensitivity: <=-39dBm
Security: ONU authentication
MII GEPON standards
IEEE 802.1p 802.1Q 802.1d 802.1w
MAC learning and banding
Qualities of Service
Layer 2 isolation
Temperature: -5°C ~ 70°C
Humidity: 10% ~ 90%, non-condensing
Weight: 3 kg
120~240V AC, broaden compliant
DC and AC concurrency for protection
2 pon port EPON OLT, with EMS system, 4 ports uplink, 2 SFP 1.25G slots ad 2 UTP 10/100/1000 ports
1.25g fiber transceiver module,20 km distance, 1310 nm FP TX, 0~70℃, single mode, DDM as option, industrial type -40 to +85°C as option.
SELF STUDY BLOG
Modern networks rarely rely on pure topologies like bus, ring, or star. Most common solutions use hybrid topologies, which are combinations of features from those three.
As it is clear from the name, star-wired ring topology has features of star and ring topologies. You can see example of this topology ...