AVS Electronics VECTOR Plus Installationshandbuch - Seite 5

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Other display indications

As stated before, at power up an initialization procedure of about 1 minute takes place, during

which the equipment configures itself according to programming parameters stored in the SIM

card. The 7-segments display shows some default characters to indicate the advancement of

this process:

at the beginning, a line shifts on the display from bottom to top. Then an A character flashes

for about 30 - 40 seconds. Finally, a C character shows till the end of the initialization, when the

led bar will start to indicate the signal strength.

Additional messages on the display:

: An horizontal line shifting from bottom to top is displayed when sending an SMS message.

C : The C character is displayed when executing the periodic autotest with SMS sending.

F (flashing) : This character indicates PSTN line fault condition.

8 (blinking) : Indicates an incoming call through the GSM.

Trouble and Fault messages:

0 = VECTOR Plus is not able to turn on the GSM unit.

1 = Wrong or missing serial comunication between VECTOR Plus and GSM unit.

2 = Wrong PIN security code on the SIM card.

3 = No GSM service available

4 = Poor signal level

5 = Battery problem

6 = Unknown general problem

Testing VECTOR Plus

In order to verify the efficiency and the signal quality of the GSM channel, we suggest the

following test: connect a normal telephone set to terminals Ac - Bc of the interface and close to

negative the terminal "GSM". Power up the unit and wait the initialization process is completed

. Execute some telephone calls and evaluate the signal and audio quality of the GSM

(see display)

connection.

Jumpers and trimmers

Jumper S1: closed if using Siemens cell phones - open if using industrial GSM engine

Jumper S2: open if using Siemens cell phones - closed if using industrial GSM engine

Jumper S3:

(OFF - TT)

RV5: serves to adjust the GSM unit voltage - 3,85V for industrial GSM engine - 8,5V for

Siemens cel phones.

Siemens cell phones, because it will cause permanent damage of the GSM module)

RV2: adjusts the audio level of the signal received from the GSM unit.

RV3: adjusts the audio level of the signal applied to the GSM unit for transmission.

(NOTE: RV2 and RV3 are factory adjusted to recommended values. Therefore additional adjustment

normally is not needed)

PB1: Tamper switch connected to the TT terminals.

PB2: Microprocessor reset switch.

(only when using standard cell phone)

closed disables the tamper switch

(WARNING: Avoid mounting the industrial GSM engine if voltage is adjusted for

(correct value 0000)