When surmounting trouble rises, an optic fiber technician must choose the most suitable patch panel for a particular situation. That technician must recognize that when it comes to easy installation, proper termination and long term maintenance, not all patch panels are created equally. Optic fiber is robust and therefore deserves some special treatment. For example: if a horizontal copper cable is damaged, one user will be affected. If a backbone fiber goes down, it can take a lot of users down with it. This is why using fully enclosed connecting hardware for optic fiber is crucial. This is where the technician must choose between using wall-mounted or rack-mounted hardware. The optic fiber density required will most likely influence the technicians choice between the wall-mounted and rack-mounted connectivity. Many technicians will choose to use fiber patch cables. Trust your technician to know what's best.
Wall-mounted enclosures are suitable for up to 24 optic fibers, although with small form factors and high density connectors, can extend the fiber optic cable count to as many as 144. Wall-mount enclosures also offer the benefit of reduced floor space requirements. Rack-mounted optic fiber enclosures can be used with higher fabric counts or depending on the proximity to communications equipment, where rack-mounted optic fiber enclosures are preferable. 1U enclosures can handle up to 24 optic fiber cables with ST or SC connectors, or up to 48 optic fibers by using small form factor connectors. For extra protection, 2U to 4U enclosures can be used to handle up to 144 optic fiber connections.
A 12 fiber MPO connector can speed installation time and increase the concentration of connection hardware. The factory terminated and tested cassettes take care of breaking out the optic fibers from the MPO connectors to ST, SC, or MT-RJ connectors. The MPO cassettes can double the concentration that are possible in rack-mount enclosures - up to 72 optic fibers in a 1U enclosure and 288 optic fibers in a 4U enclosure - making these optic fibers perfectly fit to meet high density applications, such as data center's and storage area networks.
Accessibility is a concern for long term maintenance when choosing a rack-mount enclosure. The 1U enclosures may have a an access panel to reach the rear optic fibers, while larger enclosures may have a removable rear cover with adequate room inside to make changes or perform repairs. Strain relief and loop management for incoming cables must be provided, nonetheless management devices should be small enough as to not interfere with access to the optic fibers. Cable management for patch cords should be provided on the front of the enclosure with clear front covers and labeling arranged to ease moves, adds and changes and by ensuring that port identification is not obscured by patch cords.
Since copper patch panels need to be strong enough not to flex too much as the cables are punched down. The rolled edges on the panel sheet metal stock help to make the panels rigid. Copper patch panels should provide 24 ports in a 1U height or 48 ports in a 2U height. It's very important to make sure that the modular jacks and circuit traces on the panels are protected from debris that can short out circuits. All cable management systems must be easy to use and maintain to avoid any potential problems.
Fiber Optic Patch Panels
We are all familiar with black and white films where the stars needed to be patched through to one another by an operator. Although this practice no longer continues the technology used at the telephone exchange has developed and has many uses for in the modern world. Also known as a jackfield or patch bay, patch panels are the modern incarnation of this technology.
What are patch panels?
A patch panel is a hardware unit, typically rack mounted, that contains a group of sockets in an
electrical or communications system. They look like switchboards and connect incoming and outgoing lines in communications and electronic systems.
What do Patch Panels do?
The patch panel allows circuits to be arranged and rearranged manually by plugging and unplugging the patch cords. Equipment can be inter-connected in various configurations. They provide a flexible way of routing restoration for a variety of circuit types. In a typical setup, the connection consists of a shorter cable plugged into the front side of the patch panel and a longer cable plugged into the back.
A history of patch panels
The technology was first used in telephone exchanges where a room of operators were required to man the telephone switchboard. Patch panels are still used in today's telephone system but they no longer require manual input.
What can patch panels be used for?
Patch bays are used at installations where it is necessary to connect and reconnect various hardware devices. They are used for data transfers, telephone transfers and in audio and video applications.
Where are patch panels used?
They are used at technical control facilities, patch and test facilities, telephone exchanges, broadcast studios, recording studios, Audio and video production studios, Communications networks and Computer networks. Local Area Networks (LANs) incorporate patch panels by using them to connect the computers of a network to one another and to the internet.
Pros
* Cheaper than alternative switching equipment.
* Transmit signals from one cable to another without any loss of signal or data
* Enable user to change and interchange the individual cables on the front.
* Most patch panels have redundant power supplies attached to ensure that power failures do not result in data transfer failures.
* Can be routed to different destinations, including processing equipment, testing stations, etc. If a piece of equipment fails, patches can be re-routed to by-pass it. This gives the operation a great deal of flexibility to adapt to new situations or problems.
* Wireless patch panels are also available that provide the cross connections by flipping a switch rather than plugging in wires.
Cons
* Can be more expensive.
* Can increase the amount of cable required. This can make increase hum and noise rejections.
Alternatives:
Dedicated switching equipment can be an alternative to patch bays in some applications. Switchers can make signal routing as easy as pushing a button, and can provide other benefits over patch bays, including routing a signal to any number of destinations simultaneously. However, switching equipment that can emulate the capabilities of a patch panel is much more expensive.
How much do patch panels cost:
Patch panels come in a wide variety of sizes and specifications A 24 Way Value Cat5e UTP Patch Panel 1u may cost 25.85 whilst a 48 Way Krone Cat5e High Density Shielded PCB Patch Panel retails at around 445.91.
Both James Croydon & Shaun Parker are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.
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