Structured Data Network Cabling

data cabling and network installation

Structured Network Cabling & Fibre Optics

Data Cabling services in Portsmouth or Southampton, or any of the surrounding areas.

Portsmouth Communications specialises in all sizes of Cat5e, Cat6, Cat6a, Cat7 and fibre optic network cabling installations in the Hampshire, West Sussex and Surrey areas. Founded in 1994, we have years of network cabling and telecoms experience to draw on, including extensive data and voice cabling consultancy expertise.

We are so confident our products and installation services are of the highest quality that we offer a 25 year manufacturer backed warranty on all new network cabling installations.

Manufacturer trained and experts in installing data and voice network cabling, we have the experience to professionally implement your installation, enhance your productivity and keep your systems operating at maximum efficiency.

Whatever size project you have, from a single additional outlet to a 5,000 point installation we can help.

Every installation is performance tested using industry approved equipment to ensure the highest levels of integrity.

Our services include consultancy, planning, installation and testing of the following network categories:

Category (Cat) 5e

Category 5 cable, commonly referred to as Cat 5, is a twisted pair cable for computer networks. The cable standard provides performance of up to 100 MHz and is suitable for most varieties of Ethernet over twisted pair. Cat 5 is also used to carry other signals such as telephony and video.

This cable is commonly connected using punch-down blocks and modular connectors. Most Category 5 cables are unshielded, relying on the balanced line twisted pair design and differential signaling for noise rejection.

Category (Cat) 6

Category 6 cable, commonly referred to as Cat 6, is a standardized twisted pair cable for Ethernet and other network physical layers that is backward compatible with the Category 5/5e and Category 3 cable standards.

Compared with Cat 5 and Cat 5e, Cat 6 features more stringent specifications for crosstalk and system noise. The cable standard specifies performance of up to 250 MHz.[1]

Whereas Category 6 cable has a reduced maximum length of 55 meters when used for 10GBASE-T, Category 6A cable (or Augmented Category 6) is characterized to 500 MHz and has improved alien crosstalk characteristics, allowing 10GBASE-T to be run for the same 100 meter maximum distance as previous Ethernet variants.

Category (Cat) 7

A Category 7 cable (Cat 7 Cable) is a type of shielded twisted pair cable used in high-speed Ethernet based computer networks of 1 Gbps or higher. It is defined and specified in the ISO/IEC 11801:2002, Class F specification. The Cat 7 cable is backward compatible with Cat 6, Cat 5 and Cat 5/e cabling standard and equipments.

A Cat 7 cable is also known as an ISO Class F cable.

Fibre Optics (single mode/multi mode)

Single Mode cable is a single stand of glass fiber with a diameter of 8.3 to 10 microns that has one mode of transmission. Single Mode Fiber with a relatively narrow diameter, through which only one mode will propagate typically 1310nm or 1550nm. Carries higher bandwidth than multimode fiber, but requires a light source with a narrow spectral width. Synonyms mono-mode optical fiber, single-mode fiber, single-mode optical waveguide, uni-mode fiber.

Single-mode fiber gives you a higher transmission rate and up to 50 times more distance than multimode, but it also costs more. Single-mode fiber has a much smaller core than multimode. The small core and single light-wave virtually eliminate any distortion that could result from overlapping light pulses, providing the least signal attenuation and the highest transmission speeds of any fiber cable type.

Single-mode optical fiber is an optical fiber in which only the lowest order bound mode can propagate at the wavelength of interest typically 1300 to 1320nm.

Cabinets & network accessories

Once you figure out if a rack or enclosure best suits your needs, there are still a number of options to weed through until you find the best fit. One of the first things to consider is where you are going to put your network equipment. Do you want it on the floor? On the wall? Perhaps even mounted to the ceiling?

Data Cable management

Along with cooling, cable management is one of the most pressing challenges encountered by network installers. Even a cursory internet search will turn up countless examples of cabling disasters, with network cables looking like messy spaghetti. This isn’t the way it has to be.

Tackling your rack cable management during set-up and installation of server cabinets will ensure that it’s easy to expand, reconfigure and perform maintenance without having to worry about unplugging the wrong thing or navigating through the tangled cables.
 

Client Testimonial

““I have used Portsmouth Communications for many years. They provide an excellent service and nothing is too much trouble. We now use Portsmouth Communications nationwide for all our telephone services and systems. They have significantly reduced the amount of time we now take analysing our telephone bills and provide me with automated weekly reports.”

Domino's Pizza
After a major weather storm in Portsmouth literally ripped the roof off one of the buildings at BAE Systems, Portsmouth, we were urgently requested to relocated a large number of telephony services to an adjacent building on site. Once the building was repaired we then had to move the telephony services back. On completion of the project CSC, who provide facilities management services to BAE Systems, said “Hi M.L. has asked me to pass on his thanks for the stirling job you (and your teams) have been doing with the user relocations at Broadoak. The users have been up and running again with little or no inconvenience. This has been noted at a higher level and the client is please with the outcome. Thanks, D.P GOS / MSS Project Manager – BAE Systems Account. CSC”

BAE Systems
“Portsmouth Communications have been working for the former Royal West Sussex Trust, now the Western Sussex Hospitals NHS Trust, for the past 8 years and are involved in all of our telecommunication needs. Portsmouth Communications are involved from installing an extra telephone or data point to supplying and installing entire voice and data networks within new buildings. We have always found Portsmouth Communications not only exceptionally professional, but most of all helpful; any issue that arises they will always identify the issue and provide the answer – ‘there is never a problem, only a solution’. The work is not only carried out to a high standard it is also completed on time, even if that means working ‘out of hours’. Due to the nature of hospitals situations can arise where works are needed to be carried out as a mater of urgency and Portsmouth Communications are always there to help at any time if needed. The standard of work and the flexibility that Portsmouth Communications offer makes them our preferred supplier/installer at St. Richards Hospital”. Adam Shepheard, Capital Projects Manager, St Richards Hosptial, Western Sussex Hospitals Trust.

St Richards Hospital
”Portsmouth Communications took the hassle out of this project for us, providing straight forward advice, liaising with the electrical contractors and BT to ensure the work was completed on time and to budget……We look forward to working with Portsmouth Communications in the future as our business continues to expand and I would recommend them to anyone looking for a friendly, reliable and experienced communications company.” S.M., 1-1 Recruitment. More information about the project can be found in the case study.

1-1 Recruitment
“Telecommunications are absolutely critical to any business, large or small, and Honda are no exception. Portsmouth Communications are a pleasure to do business with and their friendly and knowledgeable staff ensured that this project was completed on time and without complication. We have complete faith that should the worst happen our communication systems will be fully operational thanks to Portsmouth Communications.” Richard English, Disaster Recovery, Project Manager, Honda UK

Honda UK
“We were very pleased with the excellent professional service provided by Portsmouth Communications.They delivered on time, as promised within budget. We will definitely use them again and would recommend them to any company…..Portsmouth Communications provided a complete solution for us. The Avaya IP Office telephone system they have installed for us is excellent and very simple to use.” David Eddy, Building Monitoring Services (BMS)

BMS Avaya System
The Solent NHS training centre in Southampton needed an upgrade to their existing audio visual solution which comprised of a desktop projector and pull down projection screen. They had seen the impressive Smartboard installations we had completed at NHS Omega House and with advice decided that they needed the same solution to enhance their training room environments. As well as installing the Smartboard 680 interactive whiteboards we also relocated network connections to allow for a single point of connection for all services. On completion of this project this is what the customer said about our engineers “Can I also say how impressed my manager and I were by the guys who did the installation, helpful, hard working and tidy, can you pass on my thanks please? Having worked in the electrical installation industry for many years I know how difficult it is to have employees that take a pride in their work!” S.T. Essential Skills Trainer Learning & Development Solent NHS Trust Trust Headquarters

NHS Trust