EPON (Ethernet Passive Optical Network) is the PON technology based on Ethernet, which provides services by adopting point-to-multipoint and passive optical fiber transmission. It’s of low cost, high bandwidth Ath, potential expansibility, and easy to manage.
It’s said that EPON will become the mainstream broadband access technology.
Compared with APON based on ATM protocol, the biggest advantage of EPON is that it allows equipment manufacturers and operators to abandon complex and expensive ATM and SONET devices, and eliminates the protocol conversion between ATM and IP in WAN/LAN connections, thus making the network much more efficient.
Simplify and reduce costs. In addition, with Ethernet technology as the core, EPON has many other advantages including the mature protocol, simple technology, easy expansion, user-oriented, etc.
It is suitable for the application demands with the rapid development of IP traffic. With the maturity of 10G Ethernet technology, the transmission rate of the EPON system will increase from the current 1000Mbit/s to 10Gbit/s.
Thus, V-SOL provides the EPON solution for the emergency rescue and monitoring of highway tunnels with the combination of its advanced EPON devices. Now let’s get to learn more!
Introduction of V-SOL EPON Solution for Highway Tunnel
The EPON solution for highway tunnels is designed for improving the reliability of the emergency telephone system and tunnel broadcast system by integrating two systems into one with PON.
In this way, when there are accidents or cars break down, emergency rescue and telecommunication services can be provided in time. Besides, through the monitoring system, the situation of the scene can be accessed and the rescue operation can be carried out.
Features of the Solution:
- Adopt EPON technology: upstream and downstream data flows are symmetrical; cost-effective
- Supports multicast videos and one-button emergency call
- The fused optical splitter with 1×2 non-symmetrical splitting supports any splitting ratio
In this solution, we will introduce the working process by taking examples with V-SOL PON Products. Similar to the basic passive optical networking, the OLT uplink connects to the switch of the core network and the downlink connects to the ONU with the optical splitter. As for the terminal devices, they will connect to the PON ONU routers.
First of all, the switch V350028X is set up in the server room, which is responsible for converging the data of OLT and managing LAN. It connects to the managed equipment such as the video storage server, extensive screen surveillance, tunnel broadcast, and emergency telephone.
About Layer 3 Ethernet Switch V350028X
- There are 24 10/100/1000M auto-negotiation RJ ports. The limit of the full-duplex rate reaches 2000Mbps.
- Great performance: End-to-end data can be transmitted at non-blocking full wire speed.
- StackWise: Multiple switches can be combined into one, which is good for redundancy backup, link aggregation, the increase of ports and bandwidth, and the improvement of processing capability.
- Classification of VLAN and Firewall
Secondly, EPON OLT V1600D4-DP contributes to accessing the data sent from ONU and converging the data. Then, it will deliver the data to the switch.
About EPON OLT V1600D4-DP
- Compatible with all brands of ONU
- 1U 19-Inch Economize Room Space, Save space in the server room
- The Powerful firewall can resist various attacks such as virus attacks, hacking, and brute-force attack.
- It supports an uplink speed of up to 10 Gbps.
Thirdly, xPON ONU HG3221D mainly connects to the monitoring or rescuing devices involving the camera, emergency telephone, tunnel broadcasts, and broadcast power amplifier.
About xPON(EPON/GPON) ONU HG3221D
- The ONU device adopts MTK WiFi 5 Chipset with 2.4GHz & 5GHz.
- The speed can reach up to 1200Mbps.
- It adopts USB 3.0, which is 10x faster than USB 2.0.
- 4×5dBi gain external antennas improve the signal coverage.
The emergency telephone and tunnel broadcast system of highway tunnels work well with the EPON technology and high-performance PON devices including EPON OLT and xPON ONU.
The EPON technology and ONU/OLT devices can also be applied in other fields like the networking of campus, enterprise, and home. The potential of the EPON network is waiting for exploitation.