Installation Instructions
Table Of Contents
- Chapter 1: Introduction
- Chapter 2: Safety
- Chapter 3: Functional safety
- Chapter 4: Technical data
- Chapter 5: Product general description
- Chapter 6: Boards description
- Chapter 7: Status and error indications
- Chapter 8: Operation
- Chapter 9: Configuration menu
- Chapter 10: Warranty, service, repairs, and maintenance
- Chapter 11: Regulatory information
- Annex A: Glossary
- Annex B: Index
5.2.3PRECAUTIONS FOR THE INSTALLATION OF EXTERNAL
ANTENNAS
RISK OF ELECTRIC SHOCK
The receiver must only be opened by qualified installers or authorized
personnel.
Make sure the power supply is switched off before opening the receiver.
Failure to follow these instructions could result in death, serious injury,
or equipment damage.
Before connecting the equipment, make sure that the power supply is
switched off.
IMPORTANT! Only authorized personnel should install the product.
Only correct installation meets the safety levels for the product.
l For optimum performance, place the external antennas away from metal
objects such as metal girders, high-voltage cables, and other antennas.
l Keep the longest distance possible between the antenna and e.g. engines,
welding machines, power sources, inverters, x-ray devices and other radio
transmitters.
l Any antenna that is mounted separately must be positioned in as open a
space as possible. Ahidden antenna significantly impairs the reception.
l Do not mount the antenna in a locker.
l Test the equipment before installing the antennas permanently.
5.3Repeater & active antenna (optional)
Depending on the application and/or the environment, repeaters or active
antennas can be installed on all R20R21 receivers to optimize data transmission.
5.3.1ABOUT D5-23
Tele Radio AB D5-23 is a combined repeater /active antenna that can be used to
extend transmissions so that the signal can cover greater distances or be received
on the other side of an obstruction.
An active antenna is recommended whenever strict control distances are required
or when the receiver is mounted in close proximity to unintentional electronic
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PRELIMINARY