Questions & Answers
Answers & Questions often asked by our customers…
In order to ensure that your intruder alarm and security system are in full working order, we believe that intruder alarm systems should be checked at least annually.
Our technicians carry out the following tasks during our routine maintenance visits;
Check external siren and strobe functionRead More...
Check internal screamer function
Check all movement, reed switch, perimeter and other detectors
Check all smoke and heat detectors
Check any duress or panic buttons
Check any wireless devices such as keyfobs, detectors etc. Replace batteries as required
Change system batteries
Update (Add/Remove) user codes as required
Clean all keypads
Check reporting functions to Central Monitoring Station
Re-apply new window stickers and signage as required
Diarise next …
When the analog signal is turned off, the digital signals will continue as they are now.
Digital signals do not interfere with any other transmission.
The digital signals have been designed to cover the same type of area as the existing analog services. They have been planned so that the frequency and power of each digital transmission does not interfere with any other transmission and have generally been provided with the maximum power available.
Digital signals and analog signals transmitting from the same tower do not adversely effect signal strength
Each and every transmitter site is planned and the digital transmitters that …Read More...
Take a moment to digest the below image. It diagrammatically represents all common PC and Video resolutions showing the extent of the image size.
The two most common ratios are 4:3 (traditional video) and the current standard for high definition video 16:9. There are many other ratio variations, however they are less common than 4:3 and 16:9.
PC’s, monitors, laptops, projectors, screens and interactive boards all have a definitive native resolution. This graphic can assist in making comparisons between them.
Download a PDF version here.Read More...
IP Telephony can be broken up into two key part – Trunks and Handsets.
Trunks; The telephone trunk is the connection to the outside world. Therefore an IP Trunk is a connection using the TCP/IP suite of protocols, which is the communications protocol of nearly all business networks and the internet. IP trunks use what is know as a Session Initiated Protocol (or SIP) to connect from point to point, thus providing a connection. Telephone conversations (or Voice calls) are converted to data packets and are translated from point A to point B using the SIP protocol. Quality of Service (QoS) …Read More...
Projectors have varying projection distances (or focal lengths). It is the lens within the projector that determines the focal length of a projector. Standard lenses are fairly inexpensive to make, and thus are the most common. A standard lens put’s the projector approx. 3m back from a standard sized (86″-100″) screen.
Short throw lenses can be more specific in application and thus are often sold as a ‘feature’. Short throw lenses put a typical projector approx. 1-2m back from a standard sized (86″-100″) screen.
Ultra-Short Throw projectors have been designed specifically for interactive whiteboards. Ultra short throw lenses have been carefully ground …Read More...
Fibre Optic cores have a defined colour code. They are defined by a standard called TIA-EIA-598-A as a colour coding to identify their position in a single tube. Here are the colours used and the position they represent:
For 13 fibres and higher the colour code is repeated every 12 and the buffered fibres or sub-cables are striped once for every additional 12.
13 = Blue with one stripe
14 = Orange with one stripe
25 = Blue with two stripesRead More...
Need to compare native resolutions of two monitors, TV’s or laptops? Ever wanted to know the difference between your PC monitor’s resolution and that of your TV? Just how good is 1080p as a video resolution? Want to understand 4:3 and 16:9 resolutions? Here are the answers. We have provided a simple diagram to diagramatically show the differences between all common computer and video resolutions…
See our ‘Other Technical Information’ section at the bottom of your pageRead More...
Interactive Whiteboards are changing the way we work and teach!
A-COM Solutions conducted extensive research on the available Interactive Whiteboards to find out which products provide the best features at the best price.
We found that the Qomo Interactive Whiteboard (said ‘como’) out classed all the others. Read more to find out why.
We compared all the major Interactive Whiteboard brands such as Smart Board, InterWrite Board, Promethean, Panasonic Electronic Whiteboard and Hitachi Interactive Whiteboard. Here’s seven of the reasons the Qomo came out top:
A true traditional whiteboard for use with standard whiteboard markers (with the addition of an optional surface membrane)Read More...
Size – …