Alphatech GRL 4G Assembly instructions

4G GSM relay controlled via SMS

1
GRL 4G
Installation and programming manual v3.1
from fw 204
The device is designed to remotely control 2 separate relays
and send notification SMS or call stored voice messages when
changing the status of 4 inputs (input on/off).

2
Basic technical parameters:
Power supply 9 to 24 VDC, 500 mA
GSM networks 2G bands B3, B8
4G bands B1, B3, B7, B8, B20, B28A
Outputs 2x switching relay 1 A / 30VDC (60Vmax)
(galvanically isolated)
Inputs: 4x 0/5V inputs, short-circuit activation
Dimension: 131 x 111 x 38.5 mm
Basic features:
•Replaceable backup battery
•Simple installation and setup (in the basic settings, you
only need to store one phone number on the SIM card)
•After changing the input status, sending SMS to up to 7
numbers (PORTOPN1-7 and PORTCLS1-7) stored on
the SIM card and simultaneously calling up to 7 phone
numbers (PORTCALL1-7) also stored on the SIM card.
•Separate SMS text message for each state of each
input (i.e. 8 different SMS text messages)
•Separate voice messages for each state of each input
(i.e. 8 different voice messages)
•It is possible to set the relay states after switching on
(relay open, closed, remember the last state before
switching off)
•Possibility to remotely determine the current status of
both relays, all inputs, temperature and power supply of
the device via SMS text message.
•After calling the device, you can listen to a voice
message with the current status of both relays and all
inputs.
•Ringing can be used to control relay switching similarly
as with the Alphatech GSM Door Intercom or the
Alphatech GSM Key devices.

3
•The device can only be controlled and programmed
from the numbers stored on the SIM card which is
inside the device.
•You can work without or with the PIN code –automatic
generation of random PIN code for the inserted SIM
card.
•SMS control of up to 7 slave GRL4G devices from the
master GRL4G device, or mutual control in a cascade.

4
Commissioning:
•If you wish to program the parameters directly to the SIM
card by saving the numbers from any mobile phone, insert
that SIM card into this mobile phone and program the SIM
card.
•Turn off the PIN on the SIM card or set the PIN code to
0000 (see chapter SIM PIN). Insert the programmed (see
previous point) or unprogrammed SIM card into the hole
inside the device (see the figure below) and press it to
secure the SIM card.
•If you have a backup battery installed, leave its switch in
the down position (off).
•Connect the antenna.
•Connect the power.
•The blue power (PWR) LED lights up, flashes or the BAT
LED lights up (see below).
•Within about 4 seconds, the yellow GSM LED lights up.
•During the next 30 sec. the GSM network will be logged in
(yellow LED flashes, see the table later in the manual) and
relays will be switched on (see RLxSTAT settings in the
table later in the manual)
•The device is ready for operation.

5
SIM PIN
If you wish to operate the device with a SIM card without a PIN
code, turn off the SIM PIN code (in any type of a mobile phone)
before inserting the SIM card into the device.
If you wish to operate the device with a SIM card with a PIN
code, set the PIN code to 0000 on the SIM card using any type
of a mobile phone before inserting the SIM card into the device.
The GRL4G device, after inserting a SIM card with such a PIN
code changes itself the PIN code to another PIN code, it´s
derived from the GSM module.
•Each GRL4G has its own unique PIN code (within a 4-
digit number, of course)
•If you wish to use this SIM card in another device, you
need to know the PIN2 code from this SIM card. As you
do not know the real PIN code, you will need the PIN2
code to set a new PIN code (for example again to 0000,
for use in another GRL4G) –working with PIN/PIN2 code
does not affect the saved data and settings. These
remain on the SIM card.
•ATTENTION! When inserting a SIM card with a PIN
code other than 0000, the device will not work! The
only exception is when you insert the SIM card that has
a PIN code set corresponding to the unique number of
the GSM module. So, if you remove the SIM card after
turning off the GRL4G device and insert it into the same
GRL4G device again, the GRL4G device will continue to
work without changing the PIN code.

6
antenna
SIM slot
BAT (green) –indication of battery
Backup battery switch
normally closed
normally open
Common
REL1
REL2
Power supply 9-24 Vdc
GND+
+INPUT1
GND
+INPUT2
normally open
Common
normally closed
+INPUT3
GND
+INPUT4
PWR (Blue) - power indication
GSM (yellow) –operation indication
IN1-IN4 (Red) –input indication
RL1 (putting green) - REL1 status inz
RL2 (putting green) - REL2 status indication

7
Example of wiring:
Sending SMS SET REL1 ON turns on the light
When the level rises, the sensor switches on the IN1 input and
the device sends an SMS "P1 closed" (or another agreed SMS
–e.g. "The level is above normal").
By sending SMS SET REL2 ON, the pump is switched on. After
the level drops, the sensor opens the IN1 input and the device
sends an SMS "P1 OPEN" (or, for example, "Level in normal".
By sending SMS SET REL2 OFF the pump switches off again.
-12V+

8
LED signaling on the GRL4G device
Blue LED
(PWR)



Continuous light

Continuous light –LED only
glows/shines

Off

Yellow LED
(GSM)

Continuous light

   
Blinking alternates for 1 sec.


▌▌▌ ▌▌▌



|| || || || || ||
1 to 5 short double flashes


  
Flickering long light, short gap

    
Flickering shorter light, short gap

▌▌
Short blink every 9 sec.

▌▌▌▌▌▌▌▌▌▌
Fast short flashing

Green LED
(REL1, REL2)

Continuous light

Off

Red LEDs
(IN1, IN2, IN3,
IN4)

Continuous light


Off

Green LED
(BAT)
   
Blinking alternates for 1 sec


Continuous light


9
Programming the GRL4G parameters via SMS text
message
For security reasons, GRL parameters can only be set from
numbers stored on the SIM card under the names ADMIN1 to
ADMIN9.
SMS messages are always WRITTEN IN LARGE LETTERS
Individual SMS elements are always separated by a space
(words). The first word is always a command. The next word(s)
is one or more parameters.
Ex: INIT ADMIN1 [phone]
All commands are in the appropriate table at the end of the
manual.
1. During the first setup, when the SIM card does not contain
any of the ADMINx names, it is necessary to enter such a
number on the SIM card using an SMS with the INIT
command. The SMS can be sent from any number. If the
SIM card already contains at least one number with the
name ADMINx, the command will not be executed.
2. If you need to control the relay, or set GRL from other
ADMIN numbers: From the mobile phone with the ADMINx
number, send an SMS with the numbers of other ADMINs
to GRL4G in the form: WRITE ADMIN2 +420xxxxxxxxx
(WRITE ADMIN3... etc.)
3. From the mobile phone with the ADMINx number, send
SMS text messages gradually to the GRL4G device. Send
SMS text messages with the numbers to which SMS
should be sent when the status changes on the inputs in the
form: WRITE PORTOPN1 +420xxxxxxxxx (WRITE
PORTOPN2... etc.)
4. If the default parameters are not suitable, set the GRL
parameters (see the table later in the manual). You can
set the parameters individually, for each parameter by a
separate SMS. If you need to set more parameters at the