Annex C Protection From Electromagnetic Interference - Kaba RAC 4XT Installation Manual

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.
Power Adapter
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.
INSTALLATION GUIDE - REMOTE ACCESS CONTROLLER RAC 4XT • PK3191_10_14
Power Supply
RAC 4
Main PCB
Shielded
Wire
of Cable
12 VDC Electrical
Battery Connector
RAC 4XT
ENCLOSURE
Page 28
Shielded Cable
Ground Wire
Mounting
Screw
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 Ground