Structured Cabling

Frequently Asked Questions

A guide to Structured cabling and standards

Why does structured cabling even matter?โ€ฏ

It keeps you connected. Most of the technology you use is supported by structured cabling: Wi-Fi, VoIP, DAS, security cameras, audio visual systems, IoT sensors, voice and data cabling, and the list keeps growing. It follows standards which ensures that these technologies operate as designed when connected.

How do I know what Cat cable to use?

The best category of ethernet cableโ€ฏdepends on your internet needs. Category 5 cables are the most basic ethernet cable. However, they are still robust enough for most standard browsing. However, if you are regularly streaming or gaming, a more powerful Cat6 or Cat7 cable will be preferable for you.

How far can Cat cable run?

The maximum length of a Cat5e or Cat6 Ethernet cable is about 295 ft. (90 m), plus up to 16 ft. (5 m) of patch cable on either end, for a total ofโ€ฏ328 feet or 100 meters. Beyond this, the signal begins to degrade, reducing the speed and reliability of the connection.

Can you mix Cat5 and Cat6?

Yes but your connection will run at the lowest common denominator – for example,โ€ฏif the 1st part of the cable run which is Cat5e and the rest is made up of Cat6, then the whole cable run will behave as if its Cat5e.

How do I know what speed my Ethernet cable is?

Go to Network and Sharing Centre. Click the Change adapter settings link from the left pane. Double-click on your Ethernet or Wi-Fi adapter to open its properties. Check the connection speed of your network adapter in the Speed field.

What is the difference between T568A & T568B Wiring Standards?

T568A and T568B use different colour assignments for pin locations on eight pin modular connectors. T568A follows an older phone standard, while T568B is based on a commercial standard. Neither scheme is technically superior as both ends of the cable are wired the same.

The difference in T568B and T568A wiring schemesโ€ฏis important to understand when terminating RJ45 connectors for Ethernet cables. These two schemes are the most common standards for wiring eight-position modular plugs and jacks. They use the same type of plug, but the order of the colour-coded wire pairs is different. The green and orange pairs (2 and 3) are swapped in the T568B scheme compared to the T568A scheme.

See Diagram below:
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A diagram of different colored lines

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What is a straight Through Cable?ย 

Straight-through cable is a type of CAT5 which the RJ-45 connectors at each end have the same pin out. (colour code use on both ends are the same). Straight-Through cable is also referred to as a โ€œpatch cable.โ€ Straight-through cable is used to connect computers and other end user devices to networking devices such as hubs & switches.

What is a crossover cable?

A Crossover cable is a type of CAT where one end is T568A configuration and the other as T568B configuration. Pin 1 is crossed with Pin 3 and Pin 2 is crossed with Pin 6.ย 

Crossover cable is used to connect two computers together without using a switch or hub in between.

What is the difference between LSF & LSOH?

LSF (Low Smoke and Fume) cables are made from a modified version of PVC and can emit large amounts of black smoke and hydrogen chloride gas when burned. This black smoke can obscure exit routes during a fire, and hydrogen chloride gas can be harmful to both people and equipment. On the other hand, LSOH (Low Smoke Zero Halogen) cables, when exposed to fire, emit no more than 0.5% hydrogen chloride and burn cleanly compared to LSF cables.

What is the difference between LSOH & LSZH?

LSOH stands for Low Smoke Zero Halogen, while LSZH stands for Low Smoke Zero Halogen as well. They are essentially the same and the terms are used interchangeably. Both types of cables are designed to produce minimal smoke and toxic fumes when exposed to fire.

What is the difference between PVC and LSOH?ย 

PVC (Polyvinyl Chloride) is a type of plastic used in many cables. LSF cables, which are a modified version of PVC, can produce large amounts of black smoke and hydrogen chloride when burned. LSOH cables, on the other hand, emit no more than 0.5% hydrogen chloride when exposed to fire and burn more cleanly than PVC-based cables.

What is the difference between all cat cables?

Returns Information

Please read the delivery and returns policy before completing the form.
To request your return, download the document below, complete and return (Press the text link to open in browser, press the button to download)

Weโ€™re here to help you and if you have any questions give us a call on 01772 336 111 or get in touch via the website here: Contact Us

Out of the box failures

  • In the event of an out of box failure please contact us immediately on 01772 336111 and speak to our technical support department whilst you are on site with the goods.
  • Please quote your delivery note number.
  • If our technical team are unable to resolve the problem you will be issued with a returns number.
  • We will arrange a replacement and organise collection of the faulty one. Please ensure the faulty unit(s) are in the original packaging with all instructions and securely packaged ready for collection.
  • Please do not write the returns number or anything else on the box.

Replacement(s) will be sent at our cost and will be invoiced. We will collect goods within 7 days of request and credit replacement in full if confirmed faulty. Goods that are not collected within that time can only be classed as faulty in Warranty and will be repaired and sent back.

Warranty failures

  • In the event of a warranty failure please contact us immediately on 01772 336111 and speak to our technical support department whilst you are on site with the goods.
  • Please quote your delivery note number / invoice number.
  • If our technical team are unable to resolve the problem we will email a returns request to be filled out in full. Please email this back immediately.
  • Please make sure the items are securely packaged and ready for collection.
  • Please do not write the returns number or anything else on the box.
  • The goods will be collected at our cost within 7 days from request, these will be repaired free of charge and returned. If the fault has been caused by site problems or installation, then the repair will be chargeable plus carriage and a ยฃ25 admin fee. NB: If no fault is found then we will charge all carriage costs to the customer.

Goods sent in error

In the event of goods being sent in error by Quality Essential Distribution, please contact us immediately on 01772 336111 and speak to our customer service department whilst you are on site with the goods.

These will be collected at our cost and credited in full. Simply inform us within 48 hours of delivery and make the goods available for collection within 7 days.

Damaged on Delivery

In the event of goods being damaged on arrival please contact us immediately on 01772 336111 and speak to our customer service department whilst you are on site with the goods.

We can only accept Goods as damaged on delivery provided it is noted on the delivery note or we are informed within 24 hours of delivery. It is the responsibility of the recipient to open packaging and inspect goods.

Excess to requirement, ordered in error

  • In the event of goods being excess to requirements, inspect your goods to ensure the goods are as new and in a resaleable condition. Complete with all original contents, packaging manuals and without any scuffs or surface damage.
  • Contact us on 01772 336111 and speak to our customer service team; requesting a return request form. Please complete in full and email back.
  • Upon agreenment, we will issue you with a returns number and note the value of the restocking charge.
  • Please box your goods and return to Quality Essential Distribution Ltd, Returns Dept, Unit 445 Oakshott Place, Bamber Bridge, Preston, Lancashire, PR5 8AT.

Special order items may fall outside of these terms and may not be returnable. There will be a minimum restocking charge of 10% or ยฃ10 whichever is the larger amount. Goods to be returned at your cost and must be returned within 7 days of receiving the approved request. Collection by our van will have an administration charge of ยฃ10. All cabinets returned will have an automatic ยฃ50.00 re-stocking charge if you wish for us to collect the cabinet on your behalf there will be an additional ยฃ75.00 collection fee. Unfortunately, any goods returned without a returns authorisation number cannot be dealt with, repaired or credited. Any cables cut to length cannot be accepted back as a return. We cannot take responsibility for any damage caused by your couriers after collection. All items returned damaged will not be credited.

Sustainability

Every day at QED, we make choices that we know will have impact far beyond our business, and thatโ€™s a responsibility we take very seriously.

Sustainability and the future at QED

We canโ€™t ignore how serious climate change is and how quickly we need to act to minimise the damage to our planet. With every business decision, we try to do the right thing for our employees and the environment. By actively seeking ways to minimise waste, optimise efficiency, and reduce our carbon footprint, we aim to create a positive impact while supporting our customers in achieving their own sustainability goals.

Here are some of the actions weโ€™ve taken so far:


We appointed a new recycling champion, Hannah Whittle, Operations Manager:

Iโ€™m delighted to be the champion for the business, I recycle at home, and I always wanted to bring what I did at home into the workplace. I know if all businesses adopt similar recycling initiative, together we can make a big difference. I want QED to be one of those businesses that do their bit to tackle climate change.

hannah whittle qed

As of 2024, we are delighted to be accredited with ISO 9001. This accreditation reflects our dedication to delivering consistent, high-quality solutions while maintaining a customer-focused approach. By adhering to ISO 9001 principles, we ensure that our processes are efficient, sustainable, and aligned with the needs of our clients and stakeholders.

We care about the environment, and we are continually improving internal processes and encouraging other to take measures to reduce the carbon footprint. We installed a cardboard shredder to re-use any cardboard for packaging goods.

  • Set up recycling bins throughout the offices and warehouse
  • Changed waste collection supplier with more waste separation options.
  • Separate scrap metal and electronic components which are recycled by specialists
  • New procedures introduced with the aim of becoming a paperless office
  • Installation of solar panels on the building roof helping to power our IT systems.
  • Switched from incandescent light bulbs to energy-saving LED bulbs
  • Most rooms have motion detecting lights which automatically turn off. Otherwise, we turn off lights in areas of the office and warehouse when not being used.
  • Introduction of Battery storage
  • Purchased 4 Hybrid Cars as company Vehicles
  • Introduced remote working, where possible, to reduce the negative impact of commuter traffic
  • Reduced regional van deliveries by switching to Couriers
  • Our courier, DPD, also have many โ€˜greenโ€™ initiatives. They are opening Electric Depots first in London where everything is run on electric including the vehicles that deliver goods. They plan to introduce these depots city by city across the UK.

Mission Statement

Our Mission Statement...

We love what we do at QED

Our mission is to provide unparalleled access to cutting-edge security and audio-visual products, empowering our partners with the tools they need to succeed. Through our commitment to excellence, innovation, and customer satisfaction, we strive to be the premier distributor in the industry, enriching the lives of our clients, employees, and communities we serve.

ISO Accreditations

We're proud to be awarded ISO 9001 certification: an internationally recognised standard that ensures services meet your needs through an effective quality management system.

Weโ€™re proud to be awarded ISO 9001 certification

ISO 9001 is an internationally recognised standard that ensures services meet your needs through an effective quality management system.

Our decision to go for this accreditation demonstrates our commitment to providing a high-quality and consistent service and our ongoing investment in technology, development, processes and procedures.

LILIN

Frequently Asked Questions

General IP Camera Questions

What does NDAA compliance mean?

The Nation Defence Authorisation Actย or NDAA is a Government Legislature from the United States of America that prohibits video surveillance, telecommunications services, equipment and components manufactured by specific vendors. This is intended to mitigate cyber security threats associated with security and surveillance, particularly concerningโ€ฏHik Vision,โ€ฏDAHUA, andโ€ฏHuaweiโ€ฏโ€“ major component suppliers across the whole CCTV industry; this includesโ€ฏIP Cameras, Network Video Recordersโ€ฏandโ€ฏDigital Video Recorders.ย 

What browser is recommended for LILIN IP products?

LILIN recommend using a chrome based browser to view your LILIN equipment. Browsers such as Edge, Chrome and Firefox.

What is the estimated SD Card recording length when an SD card is installed directly in to a camera?

When recording directly to an SD card fitted within a camera you have to option either continuous record or motion record in either H.264 at 1080p or 480p.ย 
ย 
H.264 4MP @ 15FPS Continuous Recording Estimated time:ย 
ย 
32GB SD Card – H.264 1080p – 0.7 Days Recordingย 
64GB SD Card – H.264 1080p – 2 Days Recordingย 
128GB SD Card – H.264 1080p – 4 Days Recordingย 
ย 
H.264 1080P @ 15FPS Continuous Recording Estimated time:ย 
ย 
32GB SD Card – H.264 1080p – 1.5 Days Recordingย 
64GB SD Card – H.264 1080p – 3 Days Recordingย 
128GB SD Card – H.264 1080p – 6 Days Recordingย 
ย 
H.264 480P @ 10FPS Continuous Recording Estimated time:ย 
ย 
32GB SD Card – H.264 480p – 5 Days Recordingย 
64GB SD Card – H.264 480p – 10 Days Recordingย 
128GB SD Card – H.264 480p – 20 Days Recordingย 

How do I get back in to my device I have forgotten / lost my device password?ย 

If you have forgottenโ€ฏa device password but can still access the menu of the device, you will need to factory reset the device. Once the device has been reset this will change the password back to the factory default.

If you have forgotten the password for your LILIN device and you cannot access the device’s mainโ€ฏmenu without being prompted to enter a password, you will need to contactโ€ฏLILIN technical supportโ€ฏso we can help assist you to reset the password.ย 

How Do I perform a LILIN HD camera factory reset?ย 

If you experience an issue with your IP camera one of the fault finding process is to completely factory reset the IP camera using the emergency factory reset process which is usually a physical button or physical cable located at the camera itself.ย 
ย 
Bullet / Dome Camerasย 
On most bullet and dome cameras there is a physical reset button located within the cameras internals. This will involve removing the cameras cover in order to gain access to the reset button.ย 
ย 
Once access has been gained and the button located power the camera up and allow 2 – 3 minutes for the camera to boot up. Press and hold the emergency reset button for 30 seconds then release.ย 
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A close-up of a camera

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A close-up of a circuit board

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Turret / Sealed Camera Designย 
As a general rule of thumb, any sealed cameras such as the turret cameras have a reset cable located near the RJ45 connector at the end of the fly lead.ย 

This will need to be stripped and shorted together for 30 seconds and then released and taped up so the ends cannot touch accidentally.ย 

Power the camera up and allow 2 – 3 minutes for the camera to boot up. Short the cable together for 30 seconds then release and tape as above.ย 

A close-up of a camera

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Box Style Cameraย 
The emergency factory reset button is usually located on the rear of the camera.ย 

Power the camera up and allow 2 – 3 minutes for the camera to boot up. Press and hold the emergency reset button for 30 seconds then release.ย 
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What is a LILIN Camera default IP address, user name and password?ย 

– IP: 192.168.0.200ย 
– Username: adminย 
– Password: passย 

General NVR Questions

What is the default IP address for all LILIN NVRs?

The default IP address for all LILIN NVR’s is: 192.168.0.111ย 

What HDDs do LILIN recommend using?

If you are using a LILIN Standalone NVR and wish to purchase andโ€ฏinstall your own hard disk drives or additional hard disk drives then LILIN recommend Western Digital Purple Series HDD.ย 
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These are surveillance grade hard drives designed to meet the demanding 24/7 needs a of HD CCTV recorder.

Is there any Remote Client Software for LILIN NVR?

There are various ways of connecting to a LILIN NVR remotely, the main way is to use a web browser, however sometimes using a web browser to connect in to an NVR is not always the most efficient way.ย 
ย 
If this is the case it is recommended to use the LILIN Client software. This is a small piece of software that can be installed on a PC and run on demand to connect directly in to an NVR.ย 
ย 
Live view and playback are supported via the client software and once configured the software is a very easy solution for end users when viewing their NVR.ย 
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Live view and playback of up to 144 cameras simultaneouslyย 
Easy configurationย 
Password-able to restrict usageย 
Easy backup for longer duration incidentsย 
Backup/Combine multiple incidents video backup into one folder

What are the default ports to open when connecting remotely to my NVR / DVR?ย 

It is no longer recommended to use the default ports when using port forwarding.ย 
The default ports that are required to be open in the firewall to allow external connections to a LILIN NVR/DVR are:ย 
ย 
HTTP: 80ย 
Video: 3100ย 
ย 
If you wish to externally connect to more than one NVR/DVR you will need to change the HTTP and Video ports used by each device so each NVR/DVR is using a unique HTTP port and Video port.ย 
ย 
Example:ย 
ย 
NVR 1 – HTTP Port: 80 – Video Port:3100ย 
NVR 2 – HTTP Port: 81 – Video Port:3101ย 
NVR 3 – HTTP Port: 82 – Video Port:3102ย 
ย 
Please note changing the HTTP port from its default port 80 will change the URL you will need to use when connecting to the NVR/DVR. The new URL will need to follow this structure:ย 
ย 
http://:โ€ฏe.g. http://192.168.0.200:81ย 
ย 
Failure to insure you add the http:// at the beginning and the :โ€ฏat the end of the link will result in you not being able to connect to the NVR/DVR.ย 
ย 
If this is the case, we recommend you download and install LILIN’s IPScan and simply double click the device you wish to access. This will open your PC’s default browser and insert the correct link including the correct IP address and port number automatically.ย 

What should I do if my NVR displaying Video Loss on all cameras?ย 

If your NVR is showing video loss on all cameras, please reboot the NVR, this will connect to all the cameras again.ย 
ย 
Once all the cameras are displaying images once again, you will need to adjust your camera’s bit rate and possibly frame rate.ย 
ย 
The cause of the NVR losing all its camera connections is the network card is being over loaded and the maximum bandwidth is being exceeded.ย 

Technical Support

We are highly professional and knowledgeable technicians ready to help.

Order before 4pm

for next day delivery

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on the best solutions

Contact us

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You will talk with our team of highly professional and knowledgeable technicians with years of technical experience in IP and analogue CCTV, Audio, door and access control management, cabling and connectivity, network Infrastructure and switches, fibre, and wireless external detection solutions and much more.

We offer technical support free of charge through a number of channels:

Training Academy

Product training

Training videos

Phone advice

TeamViewer

Speak to us

We’ll assist you every step of the way and provide daily advice over the phone on all our products. Our technical and knowledgeable team will leave you feeling confident with your product and always here to help.

TeamViewer

TearmViewer is a software application for remote control and desktop sharing. It is particularly useful as we can access systems remotely and collaborate with your engineer on site to diagnose problems, offer solutions and solve any issues in real time.

Training

We believe that having well trained staff is absolutely crucial to your business. Visit our online training academy to discover the wide range of professional courses we have available. We also deliver bespoke training for customers and specific product lines please give us a call to discuss your requirements.

01772 336 111

Weโ€™ll assist you every step of the way and provide daily advice over the phone on all our products.

Our technical and knowledgeable team will leave you feeling confident with your product and are always here to help.

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Training Academy

We are highly professional and knowledgeable technicians.

Order before 4pm

for next day delivery

FREE expert advice

on the best solutions

Contact us

for product guidance

Order tracking

available for parcels

60 seconds

to create an account

Training Academy

You will talk with our team of highly professional and knowledgeable technicians with years of technical experience.

Contact

Do you want to know if a better solution exists to solve your problem?

Are you short on time and need somebody to help? Weโ€™re here and weโ€™ve got you!

Order before 4pm

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on the best solutions

Contact us

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Submit an enquiry

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We proudly serve clients throughout the Northwest and extend our expertise to projects across the entire UK. Whether you need support locally or for nationwide infrastructure endeavours, our experienced team is ready to help deliver outstanding results wherever your project takes you.

Weโ€™re QED! Trusted security distributors. Since 1997, weโ€™ve been supplying professional-grade CCTV, access control, alarms, UPS, cabling, AV and networking solutions across the UK.

We donโ€™t just ship hardwareโ€”we partner with installers, integrators and in-house security teams on major projects: everything from protecting construction sites with Nexus fire-alert kits and wireless CCTV setups, to outfitting retail parks, logistics hubs or corporate estates with access control, surveillance and power management.

Our edge? Rapid nextโ€‘day delivery if ordered before 4โ€ฏpm, expert technical support and honest guidance through product selection, installation, and beyond. We represent top brandsโ€”Dahua, TPโ€‘Link, Kratos UPS, Bโ€‘Tech mounts, and more

Whether it’s secure perimeter cameras for a new build, site access control during urban regeneration, or backup power for missionโ€‘critical systems, our team delivers reliable, scalable solutions and onsite backup when needed.

Whether you’re scoping out a new security setup, planning a large install, or just need to double-check stock and specs, our teamโ€™s on hand to helpโ€”quickly and without the hard sell.

We work with installers, integrators, consultants and in-house teams across sectorsโ€”from construction and retail to logistics, education and healthcare. If it involves CCTV, access control, alarms, power or data infrastructure, chances are weโ€™ve supported something similar before.

Call us, email us, or hit the contact form. Youโ€™ll get straight answers from people who know the products and understand real-world installs.

About Us

Quality Essential Distribution was established 1997 and we have grown from strength to strength.

Order before 4pm

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Weโ€™re good people. We love what we do.

Quality Essential Distribution was established 1997 and we have grown from strength to strength.

Weโ€™re a security distributor that offers fast and effective solutions for the security and safety of people and property.

What we believe

To focus on doing what’s right for you.

No matter what challenges you are faced with we are here to help.

When you boil it down, creating a great customer experience is what weโ€™re about, and when youโ€™re happy, weโ€™re delighted!

What we do

Good customer experiences make for great results.

Our focus is ensuring you receive the best experience with us: from your initial purchase, right through to the installation. Weโ€™re confident that after choosing to work with us you will achieve peace of mind, knowing that no matter what weโ€™ll always have your back.

How we do it

Being a good person and building trust is everything.

Honesty is key at QED. Weโ€™ll always provide full transparency on the overall cost of the equipment we source for you. You can be confident in the guidance we provide. Weโ€™re also people that know what questions to ask in order to return the most exceptional solution to you.

Save time and money and take advantage of our expert advice. We also want you to enjoy working with us and we love working with good people!

How we help you

Our team are committed to building long lasting relationships by continually delivering the best possible service. You can place orders 24/7 via our online shop and we are always just a phone call away to help you source the best products for your projects โ€“ big or small!

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