Centurion G-SPEAK Instalační manuál stáhnout pdf (Strana 24)

page 21

8. GSM Network Signal Detection

When powered up, the G-SPEAK will beep three times and the signal strength indicator

LEDs will light up indicating the GSM network signal strength. The GSM signal strength

can be determined based upon the combination of the three LEDs that illuminate:

The GSM signal strength may be

enhanced by repositioning the

antenna. Ideally the antenna

should be mounted externally, and

away from any sensitive electrical

components.

2+3

1+2

Illuminated LEDs

5/5

4/5

3/5

2/5

1/5

Signal strength

FIGURE 31. GSM MODULE

Signal

strength

indicator

LEDs

10. Power up the Module, hold the antenna

and locate a position where there is

optimum GSM signal. Remove the

adhesive cover at the back of the

antenna and mount.

The rear side of the antenna has a

double-sided tape backing, which

may be used to affix the antenna

to a desirable location. Please

ensure that the surface to which

you affix the antenna is smooth,

clean and dry, to ensure reliable

adhesion

FIGURE 32

Adhesive cover

Antenna

Keep the antenna away from the

microphone

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Centurion G-SPEAK Instalační manuál Strana 24