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CRIS Installation Manual

CRIS - Compact Residential Infrastructure System
Installation and Configuration Manual
Issue 5

©ACA-Apex Limited

cris max

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.

  • Telephones
    • Analogue phones (PSTN) (standard plain old telephones)
    • Digital phone (ISDN etc).
    • FAX Machines.
    • PBX (Private Branch eXchange)
  • Computers
    • Internet services
    • ISDN
    • Local Area Networks (LAN) (Ethernet 10/100/1000 Mb/s)
    • Modem links
  • Television
    • Analogue UHF
    • Digital TV (freeview)
    • AM/FM Radio
    • DAB Digital Audio Broadcasts
    • Satellite (set top box)
  • CCTV (Closed Circuit TeleVision)
    • Modulated black & white or colour Cameras
  • Audio Distribution
    • Music Distribution
  • Infrared Remote Extension
    • Remote control extenders

This manual is designed to make the installation of the system straightforward.

cris diagram

CRIS System Schematic
The following shows a typical system layout

 cris schematic a
Mounting Instructions
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:
CRIS-MINI-00 293mm 305mm
CRIS-MIDI-00 293mm 430mm
CRIS-MAXI-00 293mm 555mm

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.cris enclosure

    1. Once the hole is cut remove the enclosure from the box, remove front door assembly and place to one side. The door is held in place by 4 plastic plugs and screws inside the door. Loosen the screws if needed, and gently pull the door from the main box.
    2. Mount the enclosure in the hole cut in the wall making sure it is mounted the right way up.(legend moulded inside on the back).
    3. Once in place, loosen the 4 mounting clamp screws, enough so that the clamps can turn onto the wall board, and clear the retaining pip. Tighten the clamp screws sufficiently to clamp the wall, and that the box is held firm.
    4. The top and bottom cable entries can be removed as required for routing of cables. cris door fixingCable tie points and ties have been included with the enclosure, do not over tighten the cables ties when tying off signal cables (data, voice and coax) as this may adversely effect the operation of the systems.
    5. After cables are installed, the cable entry plates can then be cut to suit the cables, and replaced and screwed back into place.
    6. Mount TV System and terminate
    7. Mount the internal patch mounting plate and terminate and mount patch panels
    8. Replace the lid onto the box and tighten the fixing screws. The door can be mounted either way for left or right hand opening.

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 :-

    1. Cable must be installed in a star from the enclosure to the outlet.
    2. The cable run must not exceed 90M
    3. Where Data Voice Cables run parallel to a power cable they must be separated from each other by at least 300mm.
    4. The cables must be installed away from fluorescent lights or motors etc again by 300mm.
    5. Cables must not share the same holes through joists etc. with other service such as power, heating, plumbing etc.
    6. Where cables have to cross power cables this must be done at 90 degrees and should not touch.
    7. Cables must not be joined to extend the cable.
    8. Cables must be installed neatly and be supported where possible.
    9. Both cable ends must be labelled properly with wrap around labels. Enough slack should be left for re-termination.
    10. Cables must be protected from sharp edges. ie back box entry, joists. beams brickwork etc.
    11. Local / national and electrical regulations must be observed.
    12. Cables must not be installed in damp areas or where there is potential for wet conditions.
    13. Minimum bend radius must be observed, typically 4 x outside diameter for installed cable, and 8-10 x for installation. Cable must not be kinked or twisted as this causes stress to the conductors and affects the performance.
    14. Observe the maximum pulling force of the cable, this must not exceed 110 N for CAT 5e UTP cable.
    15. When using cable ties, these must not be over tightened so as to deform the cable sheath, and they should be able to turn easily on the cable.
    16. If possible bundle the cable into the panel group ie 6 cables for ease of installation and routing into the enclosure.
    17. Cable staples must not be used.
    18. End to end tests must be carried out by the installer, preferably using a cable scanner.

Category 5E Patch Panels

cat5e patch panel
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.

Colour Code

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:-

patch panel colours

RJ45 PinColour Code 568BColour Code 568APair#
5 White/Blue White/Blue Pair 1
4 Blue/White Blue/White Pair 1
1 White/Orange White/Green Pair 2
2 Orange/White Green/White Pair 2
3 White/Green White/Orange Pair3
6 Green/White Orange/White Pair 3
7 White/Brown White/Brown Pair 4
8 Brown/White Brown/White Pair 4

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.

cat5e patch panel rear with wires

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.

thumbs up
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.

tbus new

           LJU                     RJ45                   568A                   568B         
2 4 Blue Blue
3 1 White/Green White/Orange
4 2 Green Orange
5 5 White/Blue White/Blue

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.

tv distribution
Standard Installation

standard installation
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

standard installation plus 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

standard installation plus cable
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 “hit” 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.

infrared receiver
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.

Audio System

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.

audio system
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

ACA-Apex Limited
Trading Address:
Unit 21 Harmill Industrial Estate
Grovebury Road
Leighton Buzzard