Network, Phone, & Security Cabling

GSM International specializes in the design and installation of structured cabling systems with an emphasis on new construction and company relocations. Whether your network is ten computers or ten buildings with need for secure communication, GSM International can provide the copper and fiber cabling needed to connect voice and data across a Local Area Network. GSM also offers wireless access points, surveillance cameras and microphones with or without digital recording and offsite viewing, CCTV / CATV installation, and home entertainment wiring and design.

We can handle anything from simply adding 1 new CAT-5e jack for a new computer on your existing network to linking multiple buildings with fiber on a high volume gigabit network. We can also setup free or paid wireless networks for anything from a coffee shop to an entire mall or blocks of businesses in a city wireless hot zone.

Be it simple or complex be assured that GSM International can handle it and the job will be done correctly and to local codes.


  A Little Information About Network Cable

Cat-5 vs Cat-5e

Network support - CAT-5 was the original twisted pair cable used for high speed ethernet in computer cabling and will support 10BASE-T and 100BASE-T network standards, that is it supports networks running at 10 Mbps or 100 Mbps. CAT-5e is an enhanced version of Cat-5 that adds specifications for crosstalk (see below). Cat-5e cable is completely backwards compatible with Cat-5, and can be used in any application in which you would normally have used Cat-5 cable. GSM International no longer uses CAT-5 because the added specifications of Cat-5e enable it to support Gigabit Ethernet (1000BASE-T), or networks running at 1000 Mbps.

Crosstalk - Crosstalk is the "bleeding" of signals between one cable into another, due to a process called induction. This effect can result in slow network transfer speeds, and can even completely block the transfer of signals over the cable. CAT-5e cable has been improved over CAT-5 cable in this respect, and crosstalk has been greatly reduced.

Bandwidth - The bandwidth of a given conveyance media is essentially it's information carrying capacity. The greater the bandwidth of a system, the faster it is able to push data across a network. CAT-5 is rated at 100Mhz which will support 100mbps while CAT-5e is rated at 350Mhz which will carry 1000mbps. This coupled with other more stringent specifications makes CAT-5e ideally suited for networks which plan to operate at Gigabit (1000mbps) Ethernet speeds.

Bottom Line: Do NOT use CAT-5 for any new work. The only reason a company would use CAT-5 would be to use up CAT-5 cable that has already been purchased. It should only be used if the rest of the network was run in CAT-5 and you already have the cable. GSM International no longer sells CAT-5 cable and supplies CAT-5e at a lower price than we were able to sell CAT-5 for due to its higher cost at that time it was the standard.


Cat-5e vs Cat-6

There is a great deal of debate among people about whether new cabling installations should use CAT-5e or CAT-6. Many people incorrectly assume that by running CAT-6 they will then have a Gigabit network. However, in order to achieve true Gigabit network speeds, every single component on a network must be gigabit rated, such as the switches, hubs and network interface cards as well as the cable. This isn't to say that there aren't differences between CAT-5e and CAT-6, however. The general difference between category 5e and category 6 is in the transmission performance. While CAT-5e can support gigabit speeds, CAT-6 is certified to handle gigabit Ethernet. Additionally, the CAT-6 specification is better suited toward environments that are generally unfriendly to twisted pair cabling. This includes areas that have lots of interference from things like power lines, lights, and manufacturing equipment. Still, for most applications, CAT-5e is perfectly suitable and preferable to CAT-6, it is more economical and performs almost as well. However, if you can be certain that all the components on your network are gigabit rated, and the volume of the data being transmitted calls for certified gigabit performance, then the extra cost of CAT-6 is justified and it is the way to go.


What is Plenum Rated Cable?

Plenum rated cable is a specially covered cable that is much more flame and heat resistant and comes in both CAT-5e and CAT-6. Most other types of cable such as security and coax cable also come in plenum rated versions. Plenum rated cable is used mainly in drop ceilings and where wiring goes between floors in a multi floor building. Most local building codes require its use under these and a few other conditions. Regardless of code requirements you should always use plenum rated cable if running between floors or in drop ceilings. The disadvantages of plenum rated cable are that it is a little less flexible and considerably more expensive. If comparing quotes always demand that your contractor uses plenum rated cable for this portion of the job as GSM International has found many installations where other contractors have failed to use the proper cable to lower their quotes. Remember that building codes are there to protect you so make sure that whoever does your install uses the proper cable.

Contact a GSM International representative to discuss your needs.