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GSM module three-band 900/1800/1900MHz
GPRS class mobile station class B
Antenna internal or external
Connector type SMA with automatic switch
External antenna 50 Ohm nominal
Input type digital / analog 0..10V
Internal pull-up 12V, 2mA
Analog readout 0..1023
A/D converter 10-bit
Accuracy 5% FSR at 25°C
Update time 5ms typ.
Output type relay contact, normally open
Load max. 3A/250V AC or 3A/30V DC, resistive
Update time 5ms typ.
Power supply 24V DC (18-26V)
Power consumption 75mA standby, 100mA active
Operating conditions 0..50°C, 0..85% rh non-condens ing
Dimensions 36x99x70mm
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When operating on internal antenna, it is recommended to mount GSM-1 away from CyBro and other
modules. Placing on opposite side of cabinet will provide better signal, and more stable communication.
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GSM-1 is GPRS mobile station class B, as most GPRS mobile devices. It can be connected to GSM and
GPRS service at the same time, but can use only one or the other at a given time.
During GSM service (voice call or SMS), GPRS service is suspended, and then resumed automatically after
the GSM service is concluded. Practical consequences are:
- receiving SMS is postponed and voice calls are blocked while GPRS is active (outgoing SMS is not affected)
- remote GPRS connection is not possible while voce call is active
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POWER
on - module is connected to 24V power supply
blinking - unstable power supply or device malfunction
off - no power supply.
GSM
green blinking, 1 per second - connecting
green - registered to domestic GSM network, good signal quality
yellow - registered to domestic GSM network, acceptable signal quality
red - registered to domestic GSM network, poor signal quality
Short off every 2 seconds (green, yellow or red) means roaming.
red, 1 blink per second - not registered, no signal or no network
red, 1 short blink in 2 seconds - SIM card not present
red, 2 short blinks in 2 seconds - bad PIN
red, 3 short blinks in 2 seconds - bad configuration file
red, 4 short blinks in 2 seconds - credit low
GPRS
green blinking, 1 per second - connecting
yellow - GPRS connected, TCP/IP connecting
green - GPRS and TCP/IP connected
red - disconnected, will try to connect again
off - no connection, GPRS disabled
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