ZyXEL OLT-1308 GEPON Optical Line Terminal

ZyXEL Updated: 2009-02-06 RSS
ZyXEL OLT-1308 GEPON Optical Line Terminal

Broadband Passive Optical Networks Enrich Your Services for Access Networks

- Fully compliant with IEEE802.3ah
- 16K MAC addresses table
- Management through console, Telnet, SNMP or Web
- Firmware upgrade via FTP
- Overheat detection
- LED indicators for link status
- IEEE 802.1d Spanning Tree supporting
- IEEE 802.1Q VLAN
- IEEE 802.1p QoS
- 802.1x port authentication
- IGMP V1/V2 snooping and filtering
- MAC filtering

Broadband Passive Optical Network
ZyXEL's GEPON system consists of an OLT-1308 (Optical Line Termination, OLT) located in the operator's central office and an ONU-631HA-11/ONU-631HA-12 (Optical Network Units, ONU) located at customer premises for FTTH connections. The OLT-1308 is connected by a single fiber to an optical power splitter that supplies the optical signal to as many as 256 sets of ONUs. (Per PON port can support to 32 sets of ONU.)

OLT-1308 is a standalone managed Layer-2 GEPON switch with 8 GEPON ports, 4 combo uplink ports (copper plus SFP), and one 10/100Mbps Ethernet port for out-of-band management. For CPE compatibility, ZyXEL provides two models for different network architecture needs; users can choose the ONU-631HA-11 for distance up to 10km, or the ONU-631HA-12 for distance up to 20km.

High Bandwidth
As demand for broadband services such as high-definition TV (HDTV), media-on-demand (MOD), voice-over-IP (VOIP) and online gaming increases continuously, GEPON technology emerges to provide an astounding 1.25Gbps bandwidth for both upstream and downstream, giving a 30 Mbps bi-directional bandwidth to up to 32 subscribers each. It is a cost-effective access technology with reliable and scalable carrier-grade Ethernet work that really addresses Triple-play service needs.

Cost-Effective Operations beyond Initial Fiber Deployment
Construction of the fiber access network is the most labor-intensive task in FTTX projects and thus the most expensive. However, PON architecture requires less cost since it requires less fiber. PON networks use splitters to allow minimal fiber deployment in local loops. In addition, it requires no power between CO and network termination, which also lowers the maintenance cost.

20km Long-Distance Coverage
On a PON network, the subscribers must be within 10-20km from the CO, depending on the total number of splits (distance decreases as splits increase). OLT-1308 support a maximum distance of up to 20km, and users can choose ONU-631-HA-11 or ONU-631-HA-12 for 10km or 20km deployment to adapt to the existing network structure.

High Scalability and Flexibility for Easy Installation and Maintenance
Since ONU can be added to or removed from the network architecture easily and economically, its great flexibility is perfect for deployment on different network architectures. FTTH deploys ONU in residence, while FTTN/FTTC is the combination of fiber and existing copper infrastructure. In addition, you can upgrade firmware, test loopback, and detect failure remotely.