CEP CT63 Podręcznik użytkownika - Strona 20

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5.1.4 Network and Subscription

Before your application is used, you must ensure that your chosen network provides the necessary

telecommunication services. Contact your service provider to obtain the necessary information.



If you intend to use SMS in the application, ensure this is included in your (voice) subscription.



Consider the choice of the supplementary services

5.2 How to install the modem

5.2.1 Power supply



Use a high-quality power supply cable with low resistance. This ensures that the voltages at the connector

pins are within the allowed range, even during the maximum peak current.



When the unit is powered from a battery or a high current supply, connect a fast 1.25A fuse in line with

the positive supply. This protects the power cabling and modem.

5.2.2 Securing the modem

Before securing the modem take into account the amount of additional space required for the mating

connectors and cables that will be used in the application.



Where access is restricted, it may be easier to connect all the cables to the modem prior to securing it in

the application.



Securely attach the CT63 Terminal modem to the host application using two 3mm diameter pan-head

screws

5.3 Antenna

5.3.1 General

The antenna is the component in your system that maintains the radio link between the network and

the modem. Since the antenna transmits and receives electromagnetic energy, its efficient function will

depend on:



the type of antenna (for example, circular or directional);



the placement of the antenna;



Communication disturbances in the vicinity in which the antenna operates.

In the sections below, issues concerning antenna type, antenna placement, antenna cable, and possible

communication disturbances are addressed. In any event, you should contact your local antenna

manufacturer for additional information concerning antenna type, cables, connectors, antenna

placement, and the surrounding area. You should also determine whether the antenna needs to be

grounded or not. Your local antenna manufacturer might be able to design a special antenna suitable

for the application.