Videx SENTRY Manuel d'utilisateur télécharger pdf (Page 17)

PAGE 15 of 29 SENTRY TECHNICAL MANUAL VER1.6

INSTALLATION

The wiring diagrams towards the back of this manual should be followed carefully. Heavy

duty conductors on wiring diagrams are shown heavily outlined, These wires should be

doubled up.

- Check that all components are free from damage before installing (Do not proceed with

installation in the event of damage).

- Keep all packaging away from children.

- Do not obstruct the ventilation openings or slots on any of the devices.

- All connections to mains voltages must be made to the current national standards (IEE

Wiring regulations)

- Install an appropriate fused spur or isolation switch to isolate the mains.

- Isolate the mains before carrying out any maintenance work on the system.

- All intercom and access control cables must be routed separately from the mains.

Lock release protection : A diode must be fitted across the terminals on the lock release

to suppress back EMF voltages. The diagram below shows the polarity of the diode when

fitted to the release.

1N4002

12V DC

LOCK RELEASE

DIODE

Cable size and type : When running cables for any intercom system, these cables must

be installed separately from the mains cables. All multi pair cables should be to CW1308

specification. (0.5mm twisted pair telephone cable). Max resistance = 10 Ohm.

Lock release wires should be doubled up. Max resistance = 3 Ohm

The cables sizes above can be used for distances up to 100m. On distances above 100m

the cable sizes should be increased to keep the overall resistance of the cable below the

RESISTANCES indicated above.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 31 32

Pas de commentaire

Videx SENTRY Manuel d'utilisateur Page 17