Page 28
INSTALLATION GUIDE - REMOTE ACCESS CONTROLLER RAC 4XT • PK3191_10_14
6.0 Annex C Protection from Electromagnetic Interference
As per any other electronic equipment, the RAC 4XT can be affected by electromagnetic inter-
ference caused by industrial electrical equipment such as elevator motors.
To prevent the unit from operational instability such as "freezing" or losing programming, shei-
lded cables should be used and connections made as per the diagram below.
1- Use shielded cables for the readers
2- Connect the shield wire of the reader cable to the Ground wire
3- Connect the wires to the Mounting screw of the RAC.
(Remove the paint under the mounting screw of good electrical contact.)
4- Ensure the Relay Expansion Board (if applicable) has no more than 30VDC from elevator
or other power source.
Power Adapter
RAC 4XT
ENCLOSURE
Shielded Cable
Shielded
Wire
of Cable
Power Supply
To Ground
Ground Wire
Mounting
Screw
Electrical
Connector
12 VDC
Battery
RAC 4
Main PCB
Ingress Reader
* SContactless reader shown.
May be a swipe, insert,
or Contactless reader.
Egress Reader
* Contactless reader shown.
May be a swipe, insert,
or Contactless reader.
To Next Page
Loading...
