Status Leds; Operating Principles - Bentel Security BGSM-120 Serie Manual De Usuario

There are 5 LEDs on the PCB (see Figure 4): three green LEDs (L1, L2 and L3), one yellow LED (L4) and one red LED (L5). These indicate
the connection, transmission, malfunction conditions and, for the BGSM-120 series only, the Communicator status (see table 2).
 During initialisation and the programming phase, the LEDs flash.
RED — This LED is normally OFF. It indicates malfunctioning
by flashing in the event of trouble. On power-up, this
Device will check for certain trouble conditions to be met
shown in the opposite table. The most significant
malfunctioning status will be indicated, with the
corresponding number of flashes of the RED LED (L5),
(see the opposite table for number of flashes and
malfunctioning indication priority).
YELLOW — This LED will switch ON when the interface
switches to the GSM Network (due to land line trouble
or the lack of this line). If it flashes slowly, it indicates
that a call is taking place on the GSM network (both
incoming and outgoing).
If lit steadily along with the red LED, this indicates that
the default manufacturer data is loading.
GREEN — The three green LEDs (L1, L2 e L3) indicate
the GSM signal strength and status (Table 2), as illustrated in Figure 4:
The first LED (L1) near the fixing hole. If this LED is OFF, the GSM Network service is unavailable (NO SERVICE). If
only this LED is ON, the GSM Network recepetion is weak but sufficient to manage all telephone communications.
The second LED (L2). When this LED is ON, the reception is good. This LED will switch ON only when the first GREEN LED is ON.
The third LED (L3). When this LED is ON, indicates excellent GSM signal strength; it only illuminates when the first and
second LEDs are already ON.
LEDs Indicating GSM reception
LED numbering
(numbering not present on
the electronic board). This
numbering has only been
provided in order to make
identifying each LED easier
within the document.
Fig. 4 - Operation
indicator LEDs.
This Communicator offers the option of selecting the ―Primary Path‖ for communication purposes. Will provide the line ring
voltage for incoming calls and will decode DTMF dialling. The Simulated land line provides the alarm control panel or an
alternative communication terminal, with a backup line in the event of PSTN line trouble. Commutation between PSTN and
GSM, does NOT occur during ongoing calls. The Operating priority (selected during programming) determines how this
Communicator manages communication (SMS and voice for the BGSM-120 only series), as well as calls from telephone
devices connected to the LI terminals (such as a burglar alarm control panel).
 This Communicator is unable to decode Pulse dialling.
 To prevent any unwanted use of a simulated line via GSM, the equipment gives out a signal in the form of a double beep
during vocal calls. The first double beep is produced after 5 minutes and the following ones at 30 second intervals each.
10

STATUS LEDS

GSM reception level symbol
Operation indicator LEDs
1 2 3 4 5

OPERATING PRINCIPLES

Indication
Type of malfunction
priority
Firmware problem (incorrect
1 (HIGH)
Power supply problem
2
GSM module problem
3
SIM problem during operation
SIM problem during initialization
4
5 GSM reception problem
GPRS problem
6
Receiver not available
7
Monitoring receiver not
8 (LOW)
detected (receiver 1)
—
Green LED
flashes
L1
L3
L1+L2
L2+L3
L1+L2+L3
firmware)
No Troubles
Table 2 - BGSM-120 Communicator
status indications provided by the
flashing of the green LEDs (L1, L2, L3).
Meaning of indication
Voice message transmission in progress.
Remote Session; will flash until you exit
the GPRS remote session.
Service mode; flashing continues until
the device exits this mode.
Incoming SMS message; will flash for 5
seconds.
The Communicator is initialising; flashing
continues until a GSM signal is found.
GSM/GPRS Alarm Communicators
Red LED
flashes
1
2
3
4
5
6
7
8
Off