The Modern Communications Cabling Environment

Range of Services
Telecommunications cabling on customer premises may be required to support the following range of services:

  • Voice (Analog Telephone)
  • Voice (Digital Telephone such as ISDN)
  • Digital Data (LAN, inter-LAN and WAN connected)
  • Alarm
  • Security (Surveillance, access control)
  • Environmental Control
  • Paging, Music Distribution
  • Video Distribution

Some of these services require connections to or through a carrier’s PTN (Public Telephone Network). These connections may involved twister pare, coaxial cable, optical fiber or satellite media.

Transmission media used to provide the range of services within a building or between buildings (Campus Style) may involve twisted pair, coaxial cable, optical fiber and microwave or infra-red transmission. A minimum requirement at a commercial work area has become a telephone and a data connection for the PC which has an insatiable ‘appetite’ for information. The PC is demanding higher and higher data rate connections to satisfy its information ‘appetite’ , putting heavy demands on the transmission performance of supporting cable media.

Standards

Mandatory Standards

The following standards are mandatory for a customer premises installation:

Local Authority and/or Carriers
All cable and cabling components shall conform with requirements of local rules. This conformity is indicated by inclusion in Local Authority and/or Carriers Certified Components Listing (CCL) or, in the case of components in the transmission path such as sockets and termination modules by the issue of a Local Carrier permit number for that component.

The cabling installation shall meet all requirements of the wiring rules of the local wiring rules and in particular the separations and segregation requirements from hazardous services.

Industry Recommendations:

The following standards are industry recommendations but become legally binding in civil law if included in a work contract:

ISO 11801
Layout, dimensioning, component transmission quality specification, installation practices, compliance testing; ISO 11801 covers transmission quality up to Category 5 in accordance with ISO standard ISO 11801.

EIA/TIA 569
Pathway design (conduit, tray, ducting, service pole, in false ceiling, under computer floor, (etc) and associated installation practices, design of telecommunication closets, equipment rooms and entrance facilities.

Local Authority and/or Carriers
Telecommunications installations – coaxial cables for telecommunications applications – cables for connection to carrier’s networks.

Local Authority and/or Carriers
Telecommunications installations – optical fiber cables for telecommunications applications – cables for connection to carrier’s networks.

Local Authority and/or Carriers
Telecommunications installations – twisted pair cables for telecommunications applications – cables for connection to carrier’s networks.

EIA/TIA 606
Telecommunications installations – Administration of communication cabling systems – Basic requirements.

International Standard

International Standard Organization (ISO):

ISO 11801 – Information Technology – Generic Cabling for customer premises cabling.

This standard includes class D applications to 100 MHz (Cat 5 equivalent) and is the basis for category 5 transmission quality.

United States Standard

Electrical Industry Association/Telecommunications Industry Association (EIA/TIA)

EIA/TIA 568A 568B
Cabling layout, provisioning, component specification, installation, testing to category 5 transmission quality.

EIA/TIA TSB40A
An updateto EIA/TIA 568 to category 4 and 5 transmission quality in connecting hardware specification and installation.

EIA/TIA TSB 36
An update to EIA/TIA 568 to category 4 and 5 transmission quality of cables.

EIA/TIA 606
Documentation and recording practices for cabling installations.

EIA/TIA 678 – TSB67
Transmission performance specifications for field testing of unshielded twisted pair cabling systems (1995 – in draft form) including tighter specifications for the hand held cable testers.

Local Authority and/or Carriers Compliance

These authorities sets the rules and regulations which ensure a safe environment for:

  • the carrier’s personnel
  • the customer/user of telecommunications equipment
  • the carrier’s equipment

Their regulations also ensure an interface free environment for the carrier’s equipment and inter-operability between the carrier’s equipment and the customer’s equipment connected to the carrier’s network.

Local Authority and/or Carriers compliance is required of all cabling which is on the customer’s side of the network boundary and directly or indirectly connects to a carrier’s network – Local Authority and/or Carrier’s calls such cabling ‘customer cabling’.

Local Authority and/or Carriers compliance means:

  • installation/maintenance of customer cabling can only be carried out by Local Authority licensed cablers or cablers working under the supervision of Local Authority licensed cablers
  • all customer cable shall be a Local Authority approved type (CCL Listed) in accordance with Local Authority and/or Carriers markings.
  • all hardware used in the transmission chain of such cabling shall be Locally approved to EIA/TIA TSB 40A either holding a Local permit or listed in the CCL of approved components.
  • customer cabling installation/maintenance shall be carried out in accordance with Local Authority and/or Carriers rules.
  • all customer equipment (telephones, modems, fax machines etc) directly or indirectly connected to carrier’s network shall exhibit local permits, unless isolated from the carrier’s network by an Authority – permitted line isolation unit (LIU).

There’s no such thing as “Business Is Bad”

People always complain that the business is not going well, when some negative aspects strike. They may say that it is really difficult to sell and the customers are cost cutting and they dont want to buy this time. Well, that’s maybe the situation but let’s take a look at the other side of the coin. How’s your sales prospecting record, is it growing? Are you maintaining a growing lists of prospects as your inventory to keep the sales going? Have you visited a single prospect today? Prospecting is a continuing job. Hot prospects are critical list of inventory that you want to maintain. That’s the heart of the business.

A hard day’s night.

It was a hard night on Oct 23, 2009. We stayed late with my friends preparing for a bigger project on a web based database system. After a few hours of brain storming, the table was almost flooded with coffee and cookies 🙂 thank you nescafe, we were able to stand still.

Of course, out of topic discussions but recorded, just kidding, were the main ice breaker especially when Ken opened up his online experience thing. I can’t believe that he dated plenty of his online contacts, wew…. I thought online friends are just for an online activity but they were not 🙂 you know what I mean. Not just one but more than five. They were able to escape the virtual lounge and they made it!! I was surprised and think for a while that how I was left behind on this online episode.

I have a friend too that always denies that meeting in person is impossible for the online activity. I do believe but not in the case of Ken.

Back to our project, I was so excited with this one. This is the first time I will be involved in implementing Zend Framework and PostgreSQL in a Linux Server. I know this will be something to be work on everyday but I am excited in doing this. Hopefully if the proposal will be accepted with our customer, we’ll start coding early next week. So it’s gonna be a busy 6 months to go!!.. But I know after a heavy rain the sun will shine as bright as crystals.. 🙂 hmm a good vacation may be or a good scuba dive at panglao bohol 🙂 or just stay at home and redesign my kitchen, let’s see.

Come on let the ball rollin’ sign the contract ! 🙂 🙂 🙂

Benefits Alkaline Drinking Water To Our Health

There are a great number of alkaline drinking water benefits; this has been recently found out that there are health advantages to drinking alkaline water. This kind of water has a much higher ph level than that of the regular 7.0 ph level which is commonly found in regular drinking water.

People are normally ingesting various food items which in fact may contain some acidic qualities which drags down the ph level in the system. Among the alkaline drinking water benefits is the neutralization of the acid levels in the body to help restore it to the natural and healthy levels. It also aids in maintaining a healthy blood pressure and helps regulate blood sugar levels. It also helps fight arthritis and rheumatism and helps prevent heart disease. Apart from these, alkaline water is also known to be able to control any digestive problems an individual may be experiencing.

Although alkaline drinking water benefits do not include the actual cure or the eradication of medical conditions in the body, the most important advantage one can get from ingesting alkaline water is the maximum re-hydration properties it can provide. Fact is, most of us do not realize that we are losing water in our systems more than we expect. Our bodies dehydrate far long before we feel thirst. This is also the most common reason for feeling fatigue throughout the day as one loses liquids through perspiration and even through respiration. This is also one reason for individuals to feel loss of concentration as there are not enough liquids in the body.

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