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A solution to the issue Development of Remote Video Surveillance Services & Shortage of Optical Fiber Resources

 A solution to the issue Development of Remote Video Surveillance Services 1

Traffic jams, robberies, thefts, drugs, human traffickers, and many security problems in the city! The city is not safe! Modern network governance is needed to help address these issues. Surveillance cameras need to be continuously increased, with hundreds or even thousands per block. However, grasping real-time, clear, high-quality video images for the first time is challenging, and fiber resources are incredibly tight. The cost of laying fiber optic cables is prohibitive and more challenging to coordinate. The network system applied with traditional network cables will suffer from electromagnetic interference, lightning interference, and a series of problems with power supply, and the reliability is not good.

Given this, how to solve the above problem?

A solution to the issue Development of Remote Video Surveillance Services 2

PON network is a vital realization form of FTTH. It is mainly reflected in the fact that no active equipment is required in the transmission process, which brings convenience to the construction cost and subsequent network transformation. Secondly, the primary working model of PON is point-to-multipoint, which will significantly reduce the laying, reduce not only the workload but also bring more significant advantages in cost and management.

The advantages of PON technology are mainly reflected in the following aspects:

  1. An optical fiber access network is the most suitable solution for future development, and especially PON technology has been proved to be a very cost-effective way of complete broadband access.
  2. Due to the use of PON technology, the entire optical distribution network is passive, and the passive optical network is small in size and simple in equipment. Compared with copper wire networks, PON can reduce maintenance and operation costs and avoid electromagnetic and lightning interference altogether.
  3. Passive devices (optical network units) of PON do not need a power supply, which eliminates a series of problems in the power supply and has better reliability than active devices.
  4. Due to the use of passive components and the shared optical fiber transmission medium, the investment cost of the entire optical network is low.
  5. PON is transparent to the transmission system used to a certain extent and is easier to upgrade.

PON technology has become the industry-recognized preferred solution for fiber-to-the-home (FTTH). The PON technology adopts a point-to-multipoint topology, and the downstream and upstream transmit data through TDM and TDMA, respectively. The distance between the OLT and the ONU can reach 20km, the transmission rate is 1Gbps symmetrical in both directions, and the maximum splitting ratio generally supports 1:32 or higher. It can be split by one level or by multiple splitters.

Using PON technology can effectively solve the limitation of network monitoring bandwidth and distance. The central office OLT equipment is deployed in the main office computer room, and multi-level optical splitting is adopted to realize flexible deployment of points; ONU + network camera is used as a terminal combination, of which ONU can be a PoE switch with PON function; the central office sends upstream multicast data at the same time. To the client’s monitoring room and storage server. It can be monitored in real-time in the monitoring room, and the video data can be sent to the storage server simultaneously, which is convenient for later evidence collection.

PON is a passive optical network with a point-to-multipoint (P2MP) structure;

PON consists of an optical line terminal OLT (Optical Line Terminal) and optical network unit ONU (Optical Network Unit). It is composed of POS (Passive Optical Splitter);

Several PON standards:

APON: ATM Passive Optical Networks

EPON: Ethernet Passive Optical Networks

GE-PON: Giga-bit Ethernet Passive Optical Networks

GPON: Gigabit-capable Passive Optical Networks

Several PON standards

PON Technical standardization progress

PON Technical standardization progress









IEEE 802.3ah





Split ratio





ATM, Ethernet, TDM



Bandwidth efficiency





Very good,

including Ethernet, TDM, ATM


only ethernet

Good, dedicate bandwidth

Optical budget

Class A/B/C




EqD Logical equidistance




standard format

Manufacturer custom



TDM over Ethernet 
(PWE3, CESoEthernet)or native TDM)

TDM over Ethernet 

(PWE3, CESoEthernet)

Good, dedicate bandwidth






ITU-T G.984(powerful)

Ethernet OAM(Weak, factory expansion)

IEEE 802.3ah



middle OPEX



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