OT Systems

Traditionally, CCTV refers to video surveillance systems that use traditional standard definition (SD) analog cameras and are hard wired to a DVR using coaxial cables. Many users face difficulties and become frustrated while upgrading a CCTV system to IP surveillance. OT Systems’ Ethernet-over-Coax (EoC) solution is an alternative for system integrators and service providers looking for a perfect solution to utilize existing coax infrastructure and to migrate to an IP-based system. Taking advantage of the existing coaxial cables, users and installers do not need to rewire the environment to quickly provide a high-performance CCTV upgrade. Also, the EoC solution provides flexible communications and 30-watt high power capabilities with power-over-coax (PoC) technology to remote PoE IP cameras or PTZ cameras. Users can easily check a video stream from the center network system. This EoC retrofit easily repurposes existing coaxial cable infrastructure, enhances the system with centralized power and creates a feature-rich IP surveillance systems.

In the past, analog cameras have been installed in elevators for surveillance using coax cabling, because it is reliable and easier to deal with in that environment. However, when upgrading to an IP solution, clients want a seamless integration of surveillance systems that includes elevator cameras. There are several options out there. One is an Ethernet-over-Coax (EoC) extension solution. OT Systems’ EoC product series provides single or multi-way solutions for IP upgrade without the need to re-cable. The extender/adapter will accommodate Ethernet-over-coax installations at upwards of a 1000m transmission distance. It’s a true plug-and-play design for connecting and powering IP cameras over legacy coaxial cabling. The 16-channel EoC receiver also provides IGMP multi-casting capability for users to manage all devices in the system. With our Ethernet-over-Coax solution, extending the possibilities of your analog CCTV system becomes easy and cost effective.

Power-over-Coax technology is the ability to deliver power to remote devices using existing coax cable. The PoC feature allows installers to customize the power structure for each system’s unique architecture.

Some OT Systems’ Ethernet switches and fiber media converters support redundant power systems that provide users with uninterrupted network services in the event of an internal power supply failure. It automatically senses when a connected device has experienced an internal power supply failure and immediately begins to take over powering to the device, providing continuous monitoring without device reboot.

Power over Ethernet (PoE) is the ability to deliver 48VDC of power over the same copper cable as Ethernet. Two primary elements are required in order to implement power over Ethernet (PoE). They are:
(1) Power sourcing equipment (PSE) - the LAN switch or power source delivered over Ethernet
(2) The powered device (PD) - the end device that accepts and uses power from the Ethernet cable for operating

The most common type of media converter is a device that functions as a transceiver; converting the electrical signal used in a copper Unshielded Twisted Pair (UTP) network into light waves used in fiber optic cabling.
Media converters are typically protocol specific and are available to support a wide variety of network types and data rates. They are available as a physical layer or Layer 2 switching devices. Media converters with Layer 2 switching capability provide rate-switching and other advanced features.

IGMP snooping is the process of listening to Internet Group Management Protocol (IGMP) network traffic. The feature allows a network switch to listen in on the IGMP conversation between hosts and switch. By listening to these conversations the switch maintains a map which links need IP multicast streams. Multicasts may be filtered from the links which are unnecessary and thus control which ports receive specific multicast traffic.

OT Systems introduces new management software designed to deploy and secure IP network systems – Surveillance Device Management (SDM). The SDM system is embedded in certain L2+ managed Ethernet switches (ET16222MPp-S, ET42202M-S-PD, ET42202XM-S-PD, ET24222M-S and ET24222MPp-S). It allows administrators easy set-up and configuration of the IP devices at the remote end. The SDM also detects system faults providing information for trouble shooting. This intelligent system supports topology, floor and map views to help administrators easily find device locations, reducing maintenance cost.