User's Manual

Document Number: 0100SM1401 Issue: 12-16

In order to improve the security of the installation, follow the rules below:

Wiring

NOTICE

HAZARD OF EQUIPMENT DAMAGE

• The radio modem can be damaged if there is any potential difference between the

chassis-ground, RS-232 signal ground, power (-) input, or antenna coaxial shield. Before

connecting any wiring, ensure that all components are earthed to a common ground point.

• The QR150, with the Rx antenna port enabled, can be damaged if the isolation between

the Tx and Rx antenna is less than 20 dB. Before connecting the QR150 to an antenna

system, ensure that the isolation between the Tx and Rx antennas is greater than 20 dB.

• The QB, when operating with the same transmit and receive frequencies, can be

damaged if the isolation between the Tx and Rx antenna is less than 47 dB. Before

connecting the QB to an antenna system, ensure that the isolation between the Tx and Rx

is greater than 47 dB.

• The QP150 type D (part number TBURQP1xx-xxxxxxxD), can be damaged if the isolation

between the Tx and Rx antenna is less than 20 dB. Before connecting the QP150 to an

antenna system, ensure that the isolation between the Tx and Rx is greater than 20 dB.

Failure to follow these instructions can result in equipment damage.

Part A - Preface