CRIS - Compact Residential Infrastructure System
Installation and Configuration Manual
CRIS is a high quality, fully integrated system for modern home multi media network and combines the following services into a single system enclosure which can be easily patched and reconfigured by the home owner.
This manual is designed to make the installation of the system straightforward.
CRIS System Schematic
The following shows a typical system layout
The CRIS enclosures are designed to be mounted within a hollow wall such as a plasterboard stud partition as used in many new homes. If no such wall is available, then a false wall can be easily created in the desired location using plaster board mounted on a frame fitted from floor to ceiling. This will also act as the cable route and can also be decorated to blend in with the decor.
The mounting of the CRIS enclosure into a stud type wall is very simple, but just a few points to take care about. The enclosure needs to be mounted away from the framework (studs and noggins) with clearance for the side clamps and cable entry points which are sited at the top and bottom of the enclosure. As the cables exit from both top and bottom of the enclosure, sufficient clearance must be allowed for, so that the frame of the stud wall does not hinder the routing of cables.
Care must be taken not to weaken the wall if you have to cut the frame work.
The enclosure should not be mounted in a fire break wall.
Cut the hole to the following dimensions
|Product Code:||Hole Width:||Hole Height:|
The left and right hand side of the box overlaps the edge of the mounting holes, the top and bottom of the box is level with the mounting hole. Take care make professional finish.
Cable Installation Practices
It is essential that the category 5 cable and the coax cable is installed properly, also it is important that the installation is carried out by a trained or competent installer for the system to function properly. The system should be fully tested and documented and configuration and test results passed to the end user.
The cables should be installed to current standards for category 5e cable installations. Also the following should be observed :-
Category 5E Patch Panels
The category 5E patch panel is a high quality, miniature cable distribution system, designed for telephone and data systems, similar to those found in large computer networks in offices etc.
The panels are manufactured with a printed circuit board, the RJ45 presentation to the user, and IDC (Insulation Displacement Connector) block for termination of the twisted pair cable to the rear. Each circuit for both voice and data within the home consists of individual 4 pair unshielded twisted pair UTP cable terminated with RJ45's on each end. Having been terminated with RJ45's the circuits can be allocated to service either telephones, computers or other applications that may come along in the future, such as high speed Internet access. The use of adaptors to change the socket presentation to that of a telephone is simple.
Care must be taken when terminating the cable to the patch panel, to minimise the amount of cross wires or poor terminations causing open circuits. Use the correct termination tool and visually check each wire to make sure the wire is pushed fully home. Failures are generally due to poor terminations and revisits cost money. If installed professionally the system will perform well for many years.
Of the 4 pair cable the pairs and colours are allocated pins on the RJ45. It is important that these remain as the pairs are twisted at different rates to reduce cross talk (interference between the pairs).
The Standard Colour code for 258A/568B is as follows:-
|RJ45 Pin||Colour Code 568B||Colour Code 568A||Pair#|
For 568A wiring, pairs 2 and 3 are swapped with each other.
Patch Panel Wiring
The previous chart shows the standard colour codes for both 568A and 568B for the category 5E cables installed between the RJ45 outlets located around the home and the patch panels mounted in the enclosure.
It is important to keep to a consistent and agreed wiring standard within your organisation and the colour code standard adopted for the installation should be documented.
It is very important that the amount of twisted pair cable showing from the sheath after termination is not more than 25mm and that the twists are maintained up to the IDC block. It may be required to add half a twist to the pair being terminated to align the correct colour to the relevant slot. Adding or decreasing twists can impair the performance of the system. When tying off the cable with cable ties, do not over tighten as this can crush the pairs and degrade the performance of the system due to increased cross talk (interference) between pairs and possibly circuits or even short the pair out.
Terminate the cable working from ports 1 through to 6, this enables the cables to be formed neatly and makes installation easier. Place the cables up the middle of the connection blocks and using a good quality IDC tool to terminate each wire individually working away from the outer cable sheath.
When terminating the cable on the patch panel visually check that the cable is pushed fully down into the connector. The connector cuts through the insulation and grips the wire conductor thus making a gas tight termination. If the wire is not pushed in fully, it is possible that the circuit will not work.
When using the IDC tool make sure that the cutter is facing out from the panel or you will cut the wire the wrong side of the block!
Always leave enough slack to enable the cable to be re-terminated if required.
Telephone BUS Panel
We now provide a separate telephone bus panel, where the RJ45's connectors are pre-bussed in 2 sets of 4.
This enables an incoming telephone line to be patched to multiple points within the home.
Up to 4 standard phones can be connected to the BUS, due to the REN limit of the telephone line which is 4.
Non standard phones, answer phones, fax machines and phones with multi-functions may have a higher REN number.
Due to the flexibility and simplicity of the CRIS system, the tbus panel can be configured to suit the customers requirements, i.e. three 2 way circuits, two 3 way circuits or one 2 way and one 4 way circuit.
Care - It is advisable not to configure more than 4 (5 if link to Sky digibox) due to the REN limit of the telephone link. Some devices have a higher REN number such as a number of fax machines etc.
Telephone System Wiring
Also available are small domestic telephone systems . These systems allow the customer to ring from room to room, transfer calls, allocate ringing sequences etc. The systems are fully functional and similar to the systems installed in offices.
Please check the Installation manual for the relevant telephone system being installed.
TV Distribution System
The CRIS TV System is designed as a total integrated home distribution system. Located within the enclosure it combines and amplifies multiple inputs (UHF Analogue TV/UHF Digital TV FM Radio DAB (Digital Audio Broadcasting) CCTV (modulated output) and satellite signals) onto one cable feeding the quad plexing wall plate in the living room or entertainment room. The return feed cable from the quad plexing wall plate connected to the UHF2 output from the digibox or from a Y splitter.
FM and DAB signals are di-plexed onto the return feed (within the system) and are then distributed with UHF TV channels to additional points within the home via DC passing (non isolating) TV/FM diplex wall plates. Each outlet is able to receive normal terrestrial TV, FM, DAB, CCTV and the selected satellite or digital TV channel.
The CRIS TV System fully supports the Infra Red control signals from the TV Link, TVLink plus, Remote Eye back to the Sky digibox if this is to used.
The following diagram shows the configuration and wiring schematic for the system. It is recommended that CT100 or equivalent is used throughout.
Two cables are installed from the CRIS TV system and the multiple outlet TV lounge plate. One coax from the F type port marked Living Room and the quad plexing outlets, this will provide all UHF, DAB and FM signals to the living room or entertainment centre. The other coax is the return UHF signal path that is taken back via a Y splitter and routed back to the CRIS TV system via the single TV socket in the wall plate to the coax F type port marked UHF2 Digibox.
Standard Installation + Sky Digital
Two coax cables are installed from the CRIS TV system and the multiple outlet TV lounge plate. One coax from the F type port marked Living Room and the quad plexing outlets, this will provide all UHF, DAB and FM signals to the living room or entertainment centre. DC supply and control signals for the LNB are passed back from the Digibox to the satellite dish via the CRIS TV system. The other coax is the return UHF signal path that is taken back via a Y splitter and routed back to the CRIS TV system via the single TV socket in the wall plate to the coax F type port marked UHF2 Digibox.
Standard Installation + Cable Digital Network
Two cables are installed from the F type port marked Living Room on the CRIS TV system in the enclosure and the quad plexing outlets on the multi outlet lounge plate. This will then provide all UHF, DAB and FM signals to the living room or entertainment centre. The return UHF signal is taken via a cable UHF channel blocking filter and Y splitter and routed back to the CRIS TV system via the single TV socket in the wall plate via the coax to the F type port marked UHF2 Digibox.
IR Distribution System
The IR distribution system allows standard remote control hand held devices to control its assoiciated product remotely through the home network infrastructure system. This enables the user to control such products as video players, satellite boxes and audio equipment with an IR sensor from another room etc.
The repeater needs to be placed in a convenient position for the homeowner to use. A wall in front of the rooms main seating area or a ceiling half way between the seating area and the controlled equipment, as an easy â€œhitâ€ location, is a good place to install an IR repeater. The IR repeaters work best when the remote control signal travels less than 9m to the IR lens.
The IR repeater can be installed in a number of ways including faceplate with a 25x50mm snap in module, which can be located level with the light switches, or a ceiling mounted circular plug that fits a 28mm hole cut into the plaster board, or into a volume control faceplate. Other options include mounting into a cabinet etc, mounting choices are limited only by the installers creativity. For best appearance use the lens (two supplied) that blends best with the mounting location.
Note: - care should be taken when locating the repeater in a room with a plasma screen, as this may have an effect on the IR system. If in any doubt call the distributor who can offer advice.
Infrared control signals are similar to digital communications signals, so operation over Unshielded Twisted Pair (UTP) cat 5e is recommended. For a simple installation use a pair (stripped and twisted together) for V+, a pair for SIG and another pair for GND.
The following colours are typically used.
Leave the blue pair and wind around the outer jacket of the cable as a spare should this be needed in the future.
Note: - Do not install a low voltage device, such as infrared repeaters inside electrical boxes containing mains power wiring. Run IR control cable at least 300mm away from power cables, and other noisy electrical circuits as this will reduce noise interference. Most low voltage devices can be installed close together with no adverse effects.
We recommend that the repeaters are star wired from the central hub or enclosure area.
Typical IR System
The infra-red connecting block(s) should be installed behind the equipment to be controlled. The infrared emitters are attached to the controlled components infra-red sensor window by peeling off the sticky pad on the front of the emitter. The thin wires to the emitter can be easily hidden and routed to the connecting block and plugged into the 3.5mm jack sockets.
Power is supplied by the standard 9v power pack, or on more complex systems the premium 12v power pack, and is plugged into the connecting block at its location.
The IR panel has been designed as a central wiring hub that eases installation and troubleshooting of the IR control system wiring. Cables are star wired (homerun) to the repeaters and the connecting blocks using category 5e UTP cable. Up to 15 repeaters can be networked to one hub using the premium 12v power pack, giving extensive networking opportunities.
Volume controls need to be easily accessible and convenient for the home owner to use, generally near the light switches by the doorway to the room. The volume control is designed to be mounted in-wall. This can be done by using the oversized deep UK back box available from the distributor. For the best appearance mount the volume control the same height as the in-wall light switch.
Use a good quality speaker cable (minimum 1.5mm) 79/0.2mm cable recommended, throughout the installation, as this will keep losses low and help maintain a good audio quality. Speaker cable is used from the customers amplifier to the audio hub and from the audio hub to each of the volume controls, then onto the speakers.
Note: We recommend an additional category 5e cable is installed from the volume control to the enclosure, this is to future proof the installation for other specific audio distribution systems.
Multiple volume controls can be installed using either star wired or daisy chain wiring schemes. Star wired is generally preferred because it is more reliable and easier to troubleshoot.
The following table shows the maximum number of speakers allowed matching the customers amplifiers specification:-
|Amplifier Load Handling||8 Ohm Speakers||4 Ohm Speakers|
|8 Ohmn max||4 pairs||2 pairs|
|4 Ohm max||8 pairs||4 pairs|
|2 Ohm max||16 pairs||8 pairs|
|1 Ohm max||32 pairs||16 pairs|
Unit 21 Harmill Industrial Estate